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Author SHA1 Message Date
jschoubben 0412653920 The store keeps what the records name (hq ADR 0189)
The mesh names what may go from its own build records — a digest it did not
record making is never named, which is what keeps the sweep away from the
images genesis pushed. An artifact stays because a definition the mesh holds
names it, or because it belongs to one of the five most recent successful
builds of its module.

internal/artifacts asks the store to let go of one; internal/inventory
decides and remembers (migration 0055); the sweep runs after a build the mesh
recorded, which is when both the bytes and the keep set moved. Never fatal to
a build.

And the manifest side of while-stopped, refused from the definition alone:
no schedule, run-once, a container the module does not declare, itself.
2026-10-02 21:49:03 +02:00
jschoubben e09a14ba4c A served value may name the consumer it is served to (hq ADR 0188)
${consumer:as} and ${consumer:as:dns} in a serves block are filled per
consumer at resolution, and the one filled value reaches both ends: the
consumer's binding and its ${bound:...} substitutions, and the provider's
contributions entry as `derived`. A fact or alphabet the mesh does not have
is refused at parse; a consumer whose own file already holds the derived
value is refused at resolution, naming the placeholder to write instead.
2026-10-02 21:24:43 +02:00
137 changed files with 823 additions and 10294 deletions
+2 -8
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@@ -1,11 +1,5 @@
# The Go it builds with, pinned here because genesis builds this file with no arguments (novox/hq
# issue 223) — the Makefile passes the same digest. A tag older than go.mod asks for is how
# `make image` broke once before (issue 146).
ARG GO_BASE=golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7236c349a0c
# The control plane's image — for genesis and the lab only. The mesh runs the controller as a Go
# bundle the host starts as a process (module.json; novox/hq issue 213), and builds no image of it.
# Genesis builds this file and raises it as the container the process replaces on the first push
# (mesh-host internal/bootstrap, novox/hq issue 223).
ARG GO_BASE=golang:1.25-alpine
# The control plane's image.
#
# novox/hq ADR 0006: this image is pinned by digest in the bundle the host carries, fetched on a
# machine where no mesh exists yet, and run before there is anything to check it against. So it
+4 -8
View File
@@ -27,21 +27,17 @@ build:
IMAGE ?= mesh-controller:$(VERSION)
DEV_TAG ?= mesh-controller:development
# The Go base the image is built on.
# The base the module declares, read from the manifest rather than written here twice.
#
# **`make image` was broken and stayed broken**, because the Dockerfile's fallback base was a Go
# older than go.mod asks for: every build died at `go mod download` with "go.mod requires go >=
# 1.26.0", and the pipeline never saw it because the pipeline passes the declared base in. Anybody
# building the image by hand hit it and had to find the digest themselves (novox/hq 04-ISSUES/146,
# what it cost).
#
# **Pinned here since the manifest stopped building an image** (novox/hq issue 213): the mesh builds
# the controller as a Go bundle with its own toolchain, and only `make image` — genesis and the lab —
# still needs a Go base. The digest is the one the manifest declared until then.
GO_BASE ?= golang@sha256:8ac98ca534ac3f51e1f420a1dd2c15e74c75cfa0f23f3ad27eb5d7236c349a0c
GO_BASE ?= $(shell python3 -c "import json;print(next(o['image'] for o in json.load(open('module.json'))['build']['on'] if o['arg']=='GO_BASE'))" 2>/dev/null)
image:
@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
docker build --build-arg GO_BASE=$(GO_BASE) --build-arg VERSION=$(VERSION) -t $(IMAGE) -t $(DEV_TAG) .
@echo
@docker image inspect $(IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
@@ -52,7 +48,7 @@ BUILDER_IMAGE ?= mesh-builder:$(VERSION)
BUILDER_DEV_TAG ?= mesh-builder:development
builder-image:
@test -n "$(GO_BASE)" || { echo "no GO_BASE; pass GO_BASE=<image>"; exit 1; }
@test -n "$(GO_BASE)" || { echo "module.json declares no GO_BASE; pass GO_BASE=<image> or fix the manifest"; exit 1; }
docker build --build-arg GO_BASE=$(GO_BASE) -f cmd/mesh-builder/Dockerfile -t $(BUILDER_IMAGE) -t $(BUILDER_DEV_TAG) .
@echo
@docker image inspect $(BUILDER_IMAGE) --format 'built {{.RepoTags}} {{.Size}} bytes'
-7
View File
@@ -193,13 +193,6 @@ passes every check that only looks at the message.
## The image
**The mesh no longer runs the controller from it** (novox/hq issue 213). The module declares a Go
bundle, `controller`, which the host on the controller's machine unpacks and runs as the process
`mesh-controller` under the account of the same name (ADR 0188 §1, §3). The image stays for what
still runs a container of the controller: genesis, which raises the first controller from it and
installs the module from its manifest (mesh-host `internal/bootstrap`), and the lab. Neither is the
mesh's own build any more — `make image` builds it.
`FROM scratch`, holding one statically linked binary and nothing else — no shell, no package
manager, no libc, no CA certificates.
+1 -21
View File
@@ -137,12 +137,7 @@ func takeWorkFrom(credential Credential, on string) (link.BuildMachine, error) {
if err != nil {
return nil, err
}
// **The seat this machine serves is the one its credential claims** (novox/hq ADR 0190, the
// handover): the mesh issues a build machine's credential naming the seat its module claims,
// and one binary serves the old role as `builder` and the new as `build-agent` from that alone.
seat := link.BuildSeatClaimed(credential.seatsClaimed())
fmt.Fprintf(os.Stderr, "taking build work as a holder of %s\n", seat)
return link.MachineOverNATSOn(js, on, seat), nil
return link.MachineOverNATS(js, on), nil
}
// answer does one build and says what happened, whichever way it went.
@@ -458,21 +453,6 @@ type Credential struct {
// as two fields and this machine joins them once, here, to dial.
User string `json:"user,omitempty"`
Password string `json:"password,omitempty"`
// Claims are the seats the module this credential was issued for claims, as the mesh writes
// them beside the credential (novox/hq ADR 0159). The first is the build role this machine
// serves; a credential naming none is from before claims travelled in it.
Claims []struct {
Seat string `json:"seat"`
} `json:"claims,omitempty"`
}
// seatsClaimed is the seats the credential names, in order.
func (c Credential) seatsClaimed() []string {
out := make([]string, 0, len(c.Claims))
for _, claim := range c.Claims {
out = append(out, claim.Seat)
}
return out
}
// onTheNewBus is whether a credential is for the bus being built: its address says so, and the
-27
View File
@@ -1,27 +0,0 @@
package main
import (
"encoding/json"
"testing"
"github.com/novox/mesh-controller/internal/link"
)
// The seat a build machine serves comes from its credential (novox/hq ADR 0190 handover).
func TestTheCredentialSaysWhichBuildRoleThisMachineServes(t *testing.T) {
var held Credential
if err := json.Unmarshal([]byte(`{"url":"nats://bus:4222","user":"anchor.builder","password":"x",
"claims":[{"seat":"mesh-build-machine","scope":"mesh","serves":[]}]}`), &held); err != nil {
t.Fatal(err)
}
if got := link.BuildSeatClaimed(held.seatsClaimed()); got != "mesh-build-machine" {
t.Errorf("the old builder's credential serves %q", got)
}
var bare Credential
if err := json.Unmarshal([]byte(`{"url":"nats://bus:4222","user":"anchor.build-agent","password":"x"}`), &bare); err != nil {
t.Fatal(err)
}
if got := link.BuildSeatClaimed(bare.seatsClaimed()); got != link.TheBuildMachine {
t.Errorf("a credential without claims serves %q, want %s", got, link.TheBuildMachine)
}
}
+14 -177
View File
@@ -3,8 +3,6 @@ package main
import (
"context"
"fmt"
"github.com/novox/mesh-controller/internal/broker"
"slices"
"sort"
"strings"
@@ -40,10 +38,7 @@ import (
//
// It costs a resolution per machine. Assignment is a person typing a command, and being told which
// machines this just blocked is worth more than the milliseconds.
func assign(ctx context.Context, open *stores, node string, modules ...string) (string, error) {
if len(modules) == 0 {
return "", fmt.Errorf("assign %s names no module", node)
}
func assign(ctx context.Context, open *stores, node, module string) (string, error) {
// Held while it is recorded, so it cannot land between a converge's preview and its flip and
// be taken without ever having been previewed (novox/hq ADR 0100).
ctx, release, err := holdNodes(ctx, open, []string{node})
@@ -51,16 +46,6 @@ func assign(ctx context.Context, open *stores, node string, modules ...string) (
return "", err
}
defer release()
// **The one assignment refused for what the node lacks** (novox/hq ADR 0207). Everything else
// an assignment leaves unresolved is kept, because assignment is not an ordering; a module whose
// resources are applied through a seat nothing on the node holds is refused, because that order
// — the service manager, the package manager and the runtime before anything that installs,
// runs or contains — is the mesh's to keep. Several modules in one act are judged together, so
// holders that depend on each other go on in one command.
shelf, before, err := seatDependenciesOnAssign(ctx, open, node, modules)
if err != nil {
return "", err
}
// **Before the new assignment can unsettle a seat somebody holds only by being alone**
// (novox/hq 04-ISSUES/170): what the mesh derived so far is written down, and then the
// assignment resolves against a record rather than against a coincidence.
@@ -68,176 +53,58 @@ func assign(ctx context.Context, open *stores, node string, modules ...string) (
if err != nil {
return "", err
}
var lines []string
var added []string
for _, module := range modules {
fresh, err := open.inventory.Assign(ctx, node, module)
if err != nil {
return strings.Join(lines, "\n"), err
return "", err
}
if !fresh {
// Nothing changed, and saying "is assigned" would read as an action. One node runs one
// of each — the module's name is the assignment's identity (novox/hq ADR 0115).
lines = append(lines, fmt.Sprintf(
"%s already runs %s — one node runs one of each (ADR 0115); nothing changed", node, module))
continue
return fmt.Sprintf("%s already runs %s — one node runs one of each (ADR 0115); nothing changed",
node, module), nil
}
added = append(added, module)
lines = append(lines, fmt.Sprintf("%s is assigned %s", node, module))
}
if len(added) == 0 {
return strings.Join(lines, "\n"), nil
}
answer := strings.Join(lines, "\n")
said := fmt.Sprintf("%s is assigned %s", node, module)
for _, line := range settled {
answer += "\n " + line
}
// What this act changed about this node's unmet seat dependencies, and nothing else (novox/hq
// ADR 0207): a dependency of a module just assigned, or one this assignment met. The rest of the
// node's list, and every other node's, is `status`'s.
for _, line := range unheldChange(shelf, node, before, append(append([]string(nil), before...), added...)) {
answer += "\n " + line
}
// Its bus credential, in the same act (novox/hq issue 203): an assignment pushed before its
// credential exists delivers a process that cannot authenticate and crash-loops until somebody
// runs a second verb and a second push. Issued here when the module speaks on the bus and has
// no credential yet; kept when it has one, so re-assigning rotates nothing.
for _, module := range added {
if line := issueOnAssign(ctx, open, node, module); line != "" {
answer += "\n " + line
}
said += "\n " + line
}
plan, _, err := planFor(ctx, open, node)
if err != nil {
// Kept, and still refused. Both halves are the answer, and the rest of the mesh is still
// worth reporting: this machine's refusal is rarely the only consequence.
return answer + blockedElsewhere(ctx, open, node), err
return said + blockedElsewhere(ctx, open, node), err
}
// Kept, and cannot be hosted here. Said at once rather than discovered at push: a module whose
// capability the machine lacks is on the wrong machine, and the assignment records what a person
// meant while this line says it will not run until it moves. The rest of the node still pushes.
isAdded := map[string]bool{}
for _, m := range added {
isAdded[m] = true
}
for _, u := range plan.Unhostable {
if !isAdded[u.Module] {
if u.Module != module {
continue
}
for _, c := range u.Missing {
answer += "\n but " + catalogue.WrongMachine(u.Module, c, node)
said += "\n but " + catalogue.WrongMachine(u.Module, c, node)
}
}
return answer + fmt.Sprintf("\n run `push %s` to send it", node) +
return said + fmt.Sprintf("\n run `push %s` to send it", node) +
blockedElsewhere(ctx, open, node), nil
}
// seatDependenciesOnAssign is the refusal ADR 0207 makes at assignment, or nothing, with the
// catalogue and the node's assignments it was judged against. Modules already assigned are not new
// and are not judged again.
func seatDependenciesOnAssign(ctx context.Context, open *stores, node string, modules []string) (
map[string]catalogue.Manifest, []string, error) {
shelf, err := open.inventory.Catalogue(ctx)
if err != nil {
return nil, nil, err
}
assigned, err := open.inventory.Assigned(ctx, node)
if err != nil {
return nil, nil, err
}
already := map[string]bool{}
for _, a := range assigned {
already[a] = true
}
var adding []string
for _, m := range modules {
if !already[m] {
adding = append(adding, m)
}
}
// The lines AssignRefusal says beside an assignment it lets through are said by unheldChange
// with everything else this act changed, so they are not said twice.
if _, err := catalogue.AssignRefusal(shelf, node, assigned, adding); err != nil {
return nil, nil, err
}
// Two modules declaring one package, path or unit is refused before anything is recorded
// (novox/hq ADR 0210, 04-ISSUES/235): kept, the node would not resolve until one came off again.
if err := catalogue.CollisionRefusal(shelf, node, assigned, adding); err != nil {
return nil, nil, err
}
return shelf, assigned, nil
}
// unassign takes modules off a node. What they leave behind is the host's business: a directory
// unassign takes a module off a node. What it leaves behind is the host's business: a directory
// holding anything the mesh did not put there is kept (novox/hq ADR 0030).
//
// It reports the rest of the mesh for the same reason assign does, and more sharply: taking a
// module off one machine is the ordinary way to stop providing something to another, and nothing
// about the command's own output would ever have said so.
//
// **Refused when it takes away the last holder of a seat a module left on the node depends on**
// (novox/hq ADR 0207) — the other side of refusing that module's assignment without one. Several
// modules in one act are judged together, so a holder and its dependents come off in one command.
func unassign(ctx context.Context, open *stores, node string, modules ...string) (string, error) {
if len(modules) == 0 {
return "", fmt.Errorf("unassign %s names no module", node)
}
func unassign(ctx context.Context, open *stores, node, module string) (string, error) {
ctx, release, err := holdNodes(ctx, open, []string{node})
if err != nil {
return "", err
}
defer release()
shelf, err := open.inventory.Catalogue(ctx)
if err != nil {
return "", err
}
assigned, err := open.inventory.Assigned(ctx, node)
if err != nil {
return "", err
}
// Every one checked before any is taken off, so a refusal leaves the node as it was.
runs := map[string]bool{}
for _, a := range assigned {
runs[a] = true
}
for _, module := range modules {
if !runs[module] {
return "", fmt.Errorf("%s is not assigned to %s", module, node)
}
}
if err := catalogue.UnassignRefusal(shelf, node, assigned, modules); err != nil {
return "", err
}
for _, module := range modules {
if err := open.inventory.Unassign(ctx, node, module); err != nil {
return "", err
}
}
answer := fmt.Sprintf("%s no longer runs %s — run `push %s` to make it so",
node, strings.Join(modules, ", "), node)
var left []string
for _, a := range assigned {
if !slices.Contains(modules, a) {
left = append(left, a)
}
}
for _, line := range unheldChange(shelf, node, assigned, left) {
answer += "\n " + line
}
return answer + blockedElsewhere(ctx, open, node), nil
}
// splitModules is a surface's one `module` field as the modules it names: several, comma-separated,
// are one act (novox/hq ADR 0207), so the holders that depend on each other go on together from the
// command API and the controller seat's verbs as they do from the command line.
func splitModules(field string) []string {
var out []string
for _, m := range strings.Split(field, ",") {
if m = strings.TrimSpace(m); m != "" {
out = append(out, m)
}
}
return out
return fmt.Sprintf("%s no longer runs %s — run `push %s` to make it so",
node, module, node) + blockedElsewhere(ctx, open, node), nil
}
// blockedElsewhere is every OTHER machine that cannot be worked out as things now stand.
@@ -285,33 +152,3 @@ func blockedElsewhere(ctx context.Context, open *stores, except string) string {
out.WriteString("\nThis may or may not be what just changed — it is what is true now.")
return out.String()
}
// issueOnAssign gives a newly assigned module its bus credential, the way `module issue` does, and
// says what it did in one line. Nothing for a module that declares no broker secret; nothing for one
// whose user is already minted (a credential is rotated on purpose, never by re-assigning); and when
// the bus cannot be reached from here, the line names the verb and the push that would refuse the
// module until it is run — never a silent placeholder (novox/hq issue 203).
func issueOnAssign(ctx context.Context, open *stores, node, module string) string {
inv := open.inventory
shelf, err := inv.Catalogue(ctx)
if err != nil {
return ""
}
m, known := shelf[module]
if !known || mayIssue(m) != nil {
return ""
}
user := broker.Principal{Kind: broker.KindModule, Node: node, Module: module}.Username()
if _, minted, err := inv.BusUserHash(ctx, user); err != nil || minted {
return ""
}
busAddress, err := broker.BusAddress()
if err == nil {
err = issueOnTheNewBus(ctx, inv, m, node, busAddress)
}
if err != nil {
return fmt.Sprintf("its bus credential is not issued (%v): `module issue %s --node %s` first — "+
"`push %s` refuses to send %s until it is", err, module, node, node, module)
}
return fmt.Sprintf("its bus credential is issued and sealed to %s, and arrives with the push", node)
}
+6 -12
View File
@@ -145,7 +145,7 @@ func TestTheRegistryTrustAndEveryImageFollowThePortTheNodeGaveTheStore(t *testin
//
// Composed from the control plane's own manifest against a real inventory: the store's module is
// given 6852 on this node the way genesis or an operator gives it, and the control plane's
// process is told so beside the sealed connection genesis wrote.
// container is told so beside the sealed connection genesis wrote.
func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
@@ -157,8 +157,8 @@ func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T)
if err != nil {
t.Fatal(err)
}
control, err := withSeatPorts(m).Resolve([]catalogue.Built{{Name: "controller", Kind: catalogue.ArtifactBundle,
Reference: "https://registry.example/mesh-controller/controller.tar.gz", Digest: aDigest}})
control, err := withSeatPorts(m).Resolve([]catalogue.Built{{Name: "server", Kind: catalogue.ArtifactImage,
Reference: "registry.example/control@" + aDigest}})
if err != nil {
t.Fatal(err)
}
@@ -175,12 +175,6 @@ func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T)
Guards: []int{15672},
Resources: []map[string]any{{"id": "server", "type": "container", "name": "mesh-broker",
"ports": []any{"5671:5671", "5672:5672", "127.0.0.1:15672:15672"}, "image": "mq@" + aDigest}}})
// The control plane's own bus user is the installer's, seeded at genesis before the controller
// runs (SeedBusUser); without it a push now refuses the credential nobody issued (issue 203).
if err := open.inventory.SeedBusUser(ctx, inventory.BusUser{Username: "anchor.mesh-controller",
Kind: inventory.BusController, Node: "anchor", Module: "mesh-controller"}, "bootstrap"); err != nil {
t.Fatal(err)
}
if _, err := assign(ctx, open, "anchor", "mesh-controller"); err != nil {
t.Fatal(err)
}
@@ -200,12 +194,12 @@ func TestTheControlPlaneIsToldWhereTheNodePutTheStoreAndTheBroker(t *testing.T)
var env map[string]any
for _, r := range composed(t, open, "anchor").Resources {
if r["id"] == "mesh-controller.controller" {
if r["id"] == "mesh-controller.server" {
env, _ = r["env"].(map[string]any)
}
}
if env == nil {
t.Fatal("the control plane's process is not in its own node's declaration")
t.Fatal("the control plane's container is not in its own node's declaration")
}
for key, want := range map[string]string{
"MESH_STORE_INVENTORY_PORT": "6852",
@@ -238,7 +232,7 @@ func withSeatPorts(m catalogue.Manifest) catalogue.Manifest {
out := m
out.Resources = nil
for _, r := range m.Resources {
if r["type"] != "container" && r["type"] != "process" {
if r["type"] != "container" {
out.Resources = append(out.Resources, r)
continue
}
+2 -2
View File
@@ -95,10 +95,10 @@ func commands(who Authenticator) http.Handler {
mux := http.NewServeMux()
mux.HandleFunc("POST /assign", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {
return assign(ctx, open, in.Node, splitModules(in.Module)...)
return assign(ctx, open, in.Node, in.Module)
}))
mux.HandleFunc("POST /unassign", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {
return unassign(ctx, open, in.Node, splitModules(in.Module)...)
return unassign(ctx, open, in.Node, in.Module)
}))
// Adoption (novox/hq ADR 0100): the same acts as `take`, `converge` and `adopt`.
mux.HandleFunc("POST /take", acting(who, true, func(ctx context.Context, open *stores, in request) (string, error) {
+8 -85
View File
@@ -148,11 +148,6 @@ func buildFrom(result link.BuildResult) inventory.Build {
// rebuild the graph rather than a list of names.
Path: result.Path,
}
// When it was asked, which is what orders it against another build of the same module
// (novox/hq 04-ISSUES/219) — not when it was heard.
if asked, ok := link.BuildAskedAt(result.ID); ok {
kept.Asked = asked
}
for _, ref := range result.Against {
kept.Against = append(kept.Against, catalogue.Recorded(ref))
}
@@ -414,7 +409,7 @@ func buildOne(ctx context.Context, source buildSource, path, ref string, wait ti
// Correlated by something the control plane makes, not by the module's name: two builds of one
// module can be in flight, and the second answer is not the first one's.
request := link.BuildRequest{
ID: link.NewBuildID(time.Now()),
ID: fmt.Sprintf("%s-%d", "build", time.Now().UnixNano()),
Repository: repository,
Path: path,
Ref: ref,
@@ -435,13 +430,11 @@ func buildOne(ctx context.Context, source buildSource, path, ref string, wait ti
}
fmt.Println()
seat := buildSeatHeld(ctx)
ask, err := askOverOn(seat)
ask, err := askOver(server)
if err != nil {
return err
}
defer ask.Close()
fmt.Printf(" of %s\n", seat)
if wait == 0 {
// Asked and not waited for (novox/hq issue 176): the outcome is the role's event, and the
@@ -529,33 +522,15 @@ func takeIn(ctx context.Context, inv *inventory.Inventory, result link.BuildResu
recorded := inventory.Source{
Repository: result.Repository, Path: result.Path, Ref: result.Ref,
BuiltFrom: result.Commit, Head: result.Commit,
// What it stood on, so registration can judge a built manifest's base (to-be 38 WP2.4).
Against: kept.Against,
// When it was asked, so an older request heard later does not replace a newer one
// (novox/hq 04-ISSUES/219).
Asked: kept.Asked,
}
if result.Source != nil && result.Source.Seat != "" {
recorded.Repository, recorded.Seat = result.Source.Repository, result.Source.Seat
}
// **A build at a commit does not change the branch a module follows** (novox/hq 04-ISSUES/215):
// the commit is built and recorded as what it was built from, and the module keeps following
// what it followed before — the repository's default branch for one new to the catalogue.
if followedBranch(result.Ref) == "" && result.Ref != "" {
recorded.Ref = ""
if was, err := inv.SourceOf(ctx, manifest.Module); err == nil {
recorded.Ref = followedBranch(was.Ref)
}
}
if err := namesNoInstallation(manifest); err != nil {
return manifest, kept, fmt.Errorf("%s built %s (%s), and the mesh does not register it: %w",
result.On, result.Repository, short(result.Commit), err)
}
if err := inv.RegisterModule(ctx, manifest, recorded); err != nil {
if errors.Is(err, inventory.ErrSuperseded) {
return manifest, kept, fmt.Errorf("%s built %s (%s), recorded and not registered: %w",
result.On, manifest.Module, short(result.Commit), err)
}
return manifest, kept, err
}
// The keep set just moved, and new bytes just landed (novox/hq ADR 0189). Asked here rather
@@ -582,14 +557,14 @@ func buildAndShow(ctx context.Context, source buildSource, path, ref string, wai
}
defer server.Close()
ask, err := askOverOn(buildSeatHeld(ctx))
ask, err := askOver(server)
if err != nil {
return err
}
defer ask.Close()
result, err := ask.Submit(ctx, link.BuildRequest{
ID: link.NewBuildID(time.Now()),
ID: fmt.Sprintf("%s-%d", "build", time.Now().UnixNano()),
Repository: repository, Path: path, Ref: ref,
Held: heldBy(ctx), Seats: seatBases(ctx),
}, wait)
@@ -650,11 +625,6 @@ type answers struct {
// public name on the machine went dark. The holds were correct; they were recorded only in the
// machine's own state file, and the one visible symptom was a count that did not add up.
untaken map[string]map[string]int
// unheld is every module on a machine whose resources are applied through a seat nothing on
// that machine holds (novox/hq ADR 0207), with the modules that could hold it. Reported, not
// refused, until the switch — and while there is any, the mesh is not all well: the order the
// machines' modules are built in is the mesh's to keep, and this is where it says it is not kept.
unheld []catalogue.Unheld
}
// heldBy is every artifact this mesh has built, for a build that may need one as its base.
@@ -700,56 +670,12 @@ func heldBy(ctx context.Context) map[string]string {
// **One place chooses**, as everywhere else the bus change went (novox/hq ADR 0116 step 5). On the bus
// the mesh runs on today this needs the controller's own connection, so it is handed one; on the bus
// being built it dials, because a build request is a one-shot and holds nothing else.
func askOverOn(seat string) (link.Builders, error) {
func askOver(_ *link.Server) (link.Builders, error) {
address, err := broker.BusAddress()
if err != nil {
return nil, err
}
return link.BuildsOverNATSOn(address, seat)
}
// buildSeatHeld is the build role to ask: the one some assigned module claims (novox/hq ADR 0190,
// the handover). Read from the catalogue at ask time, because the answer changes exactly once, the
// moment the first build-agent is assigned — and a controller that asked the new role before then
// would queue work nothing takes, while the outcome that registers build-agent itself has to come
// from the old builder. When the catalogue cannot be read the current role is asked, said aloud.
func buildSeatHeld(ctx context.Context) string {
open, err := openStores(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, "could not read what is assigned, so the build is asked of %s: %v\n",
link.TheBuildMachine, err)
return link.TheBuildMachine
}
defer open.Close()
entries, err := open.inventory.Catalogued(ctx)
if err != nil {
fmt.Fprintf(os.Stderr, "could not read the catalogue, so the build is asked of %s: %v\n",
link.TheBuildMachine, err)
return link.TheBuildMachine
}
return buildSeatAmong(entries)
}
// buildSeatAmong is the rule, over what the catalogue holds: the current build role when any
// assigned module claims it; else the retired role while an assigned module still claims that; else
// the current role, which is where every ask goes once the handover is done.
func buildSeatAmong(entries []inventory.Entry) string {
heldBefore := false
for _, e := range entries {
if len(e.On) == 0 {
continue
}
if e.Manifest.ClaimsSeat(link.TheBuildMachine) {
return link.TheBuildMachine
}
if e.Manifest.ClaimsSeat(link.TheBuildMachineBefore) {
heldBefore = true
}
}
if heldBefore {
return link.TheBuildMachineBefore
}
return link.TheBuildMachine
return link.BuildsOverNATS(address)
}
// buildLog prints everything a build machine said about one build, read back from the bus.
@@ -769,13 +695,10 @@ func buildLog(ctx context.Context, id string) error {
}
defer js.Close()
// Under whichever build role did it: a build asked of the retired role during the handover
// (ADR 0190) said its lines as that role's events, and a reader should not have to know which.
lines := link.BuildLogOf("*", id)
sub, err := js.Context().PullSubscribe(lines, "",
sub, err := js.Context().PullSubscribe(link.BuildLog(id), "",
nats.BindStream(broker.EventsStream), nats.DeliverAll(), nats.AckNone())
if err != nil {
return fmt.Errorf("cannot read %s from the bus: %w", lines, err)
return fmt.Errorf("cannot read %s from the bus: %w", link.BuildLog(id), err)
}
defer func() { _ = sub.Unsubscribe() }()
-43
View File
@@ -1,43 +0,0 @@
package main
import (
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
"github.com/novox/mesh-controller/internal/inventory"
"github.com/novox/mesh-controller/internal/link"
)
func claiming(module, seat string, on ...string) inventory.Entry {
return inventory.Entry{
Manifest: catalogue.Manifest{Module: module, Claims: []catalogue.Claim{{Name: seat}}},
On: on,
}
}
// The controller asks the build role that has a holder (novox/hq ADR 0190 handover): the retired
// one while only the builder is assigned, the current one from the first build-agent on, and the
// current one when nothing holds either — where every ask goes once the handover is done.
func TestTheControllerAsksTheBuildRoleThatHasAHolder(t *testing.T) {
onlyTheBuilder := []inventory.Entry{
claiming("builder", link.TheBuildMachineBefore, "anchor"),
claiming("build-agent", link.TheBuildMachine), // registered, assigned nowhere yet
}
if got := buildSeatAmong(onlyTheBuilder); got != link.TheBuildMachineBefore {
t.Errorf("with only the builder assigned, asked %q", got)
}
bothHeld := []inventory.Entry{
claiming("builder", link.TheBuildMachineBefore, "anchor"),
claiming("build-agent", link.TheBuildMachine, "home-server"),
}
if got := buildSeatAmong(bothHeld); got != link.TheBuildMachine {
t.Errorf("with a build-agent assigned anywhere, asked %q", got)
}
neither := []inventory.Entry{claiming("builder", link.TheBuildMachineBefore)}
if got := buildSeatAmong(neither); got != link.TheBuildMachine {
t.Errorf("with no holder of either, asked %q, want the current role", got)
}
if got := buildSeatAmong(nil); got != link.TheBuildMachine {
t.Errorf("an empty catalogue asks %q", got)
}
}
-87
View File
@@ -2,12 +2,9 @@ package main
import (
"encoding/json"
"errors"
"strings"
"testing"
"time"
"github.com/novox/mesh-controller/internal/inventory"
"github.com/novox/mesh-controller/internal/link"
)
@@ -66,87 +63,3 @@ func TestABuildHeardIsRecordedAndRegistered(t *testing.T) {
t.Fatalf("a failure is said in the builder's words: %v", err)
}
}
// novox/hq 04-ISSUES/215: a build asked at a commit is recorded as built from that commit, and the
// module keeps following the branch it followed — a new one, the default branch.
func TestABuildAtACommitKeepsTheBranchTheModuleFollows(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
manifest, _ := json.Marshal(map[string]any{"module": "unifi", "version": "1"})
result := func(id, ref, commit string) link.BuildResult {
return link.BuildResult{ID: id, Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
Path: "modules/unifi", Ref: ref, On: "anchor", Commit: commit, Manifest: manifest,
Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
}
if _, _, err := takeIn(ctx, open.inventory, result("b-1", "main", "1111111aaaa")); err != nil {
t.Fatal(err)
}
if _, _, err := takeIn(ctx, open.inventory, result("b-2", "9c97a8a", "9c97a8a1d2c3")); err != nil {
t.Fatal(err)
}
src, err := open.inventory.SourceOf(ctx, "unifi")
if err != nil {
t.Fatal(err)
}
if src.Ref != "main" || src.BuiltFrom != "9c97a8a1d2c3" {
t.Errorf("after a build at a commit the module follows %q, built from %q; want main, 9c97a8a1d2c3", src.Ref, src.BuiltFrom)
}
// One new to the catalogue, first built at a commit, follows the default branch.
other, _ := json.Marshal(map[string]any{"module": "letta", "version": "1"})
r := result("b-3", "deadbeef", "deadbeefcafe")
r.Manifest, r.Path = other, "modules/letta"
if _, _, err := takeIn(ctx, open.inventory, r); err != nil {
t.Fatal(err)
}
if src, _ := open.inventory.SourceOf(ctx, "letta"); src.Ref != "" {
t.Errorf("a module first built at a commit follows %q, want the default branch", src.Ref)
}
}
// novox/hq 04-ISSUES/219: an older request heard after a newer one is recorded and not registered,
// so a push sends what the newer request built.
func TestAnOlderBuildHeardLaterDoesNotReplaceTheNewer(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
older := time.Date(2026, 10, 3, 21, 33, 45, 0, time.UTC)
newer := time.Date(2026, 10, 3, 21, 51, 57, 0, time.UTC)
result := func(asked time.Time, image string) link.BuildResult {
manifest, _ := json.Marshal(map[string]any{"module": "postgres", "version": image})
return link.BuildResult{ID: link.NewBuildID(asked), Repository: "http://forge.internal:20000/novox/mesh-catalog.git",
Path: "modules/postgres", Ref: "main", On: "anchor", Commit: "efff5415", Manifest: manifest,
Source: &link.SourceOnSeat{Seat: "git", Repository: "novox/mesh-catalog"}}
}
if _, _, err := takeIn(ctx, open.inventory, result(newer, "4bcd5f73")); err != nil {
t.Fatal(err)
}
_, _, err := takeIn(ctx, open.inventory, result(older, "0ab07fa9"))
if !errors.Is(err, inventory.ErrSuperseded) {
t.Fatalf("the older request's outcome was taken in as current: %v", err)
}
shelf, err := open.inventory.Catalogue(ctx)
if err != nil {
t.Fatal(err)
}
if got := shelf["postgres"].Version; got != "4bcd5f73" {
t.Errorf("postgres is %q; want the newer request's 4bcd5f73", got)
}
if builds, _ := open.inventory.Builds(ctx, "postgres", 5); len(builds) != 2 {
t.Errorf("the late build was not recorded: %v", builds)
}
}
func TestABuildIDSaysWhenItWasAsked(t *testing.T) {
at := time.Date(2026, 10, 3, 21, 51, 57, 392539762, time.UTC)
if got, ok := link.BuildAskedAt(link.NewBuildID(at)); !ok || !got.Equal(at) {
t.Errorf("read back %v %v; want %v", got, ok, at)
}
if got, ok := link.BuildAskedAt("build-1791064317392539762"); !ok || got.Format(time.TimeOnly) != "21:51:57" {
t.Errorf("the incident's id reads as %v %v", got, ok)
}
for _, id := range []string{"b-1", "build-2", "build-", "build-x", ""} {
if _, ok := link.BuildAskedAt(id); ok {
t.Errorf("%q read as a request time", id)
}
}
}
-12
View File
@@ -7,7 +7,6 @@ import (
"os"
"path/filepath"
"sort"
"strings"
"github.com/novox/mesh-controller/internal/catalogue"
)
@@ -91,17 +90,6 @@ func moduleCheck(paths []string, out io.Writer) error {
if len(m.Invokes) > 0 {
fmt.Fprintf(out, ", invokes %s", joinInvokes(m.Invokes))
}
// The state it keeps and reads (novox/hq ADR 0201), so a reviewer sees what lands on the bus.
if len(m.State) > 0 {
kept := make([]string, 0, len(m.State))
for _, s := range m.State {
kept = append(kept, s.Name)
}
fmt.Fprintf(out, ", keeps state %s", strings.Join(kept, ", "))
}
if len(m.Reads) > 0 {
fmt.Fprintf(out, ", reads %s", strings.Join(m.Reads, ", "))
}
fmt.Fprintln(out)
}
if failed > 0 {
+14 -53
View File
@@ -5,7 +5,6 @@ import (
"errors"
"fmt"
"os"
"time"
"github.com/novox/mesh-controller/internal/artifacts"
"github.com/novox/mesh-controller/internal/inventory"
@@ -50,55 +49,28 @@ func collect(ctx context.Context, inv *inventory.Inventory) {
return
}
// **Bounded, because this runs inside somebody's build.** The first sweep of a mesh that has
// never collected has the whole history to get through, and a person waiting on `build` should
// not pay for it. Two bounds, and what is left over is simply offered again next time —
// builds are frequent, and the point is that the store stops growing, not that it empties
// tonight.
within, stop := context.WithTimeout(ctx, sweepBudget)
defer stop()
store := artifacts.Store{Address: address}
var done []string
var left, skipped int
for i, reference := range references {
if i >= mostPerSweep || within.Err() != nil {
left = len(references) - i
break
}
err := store.LetGo(within, reference)
if err == nil || errors.Is(err, artifacts.Gone) {
var refused int
for _, reference := range references {
switch err := store.LetGo(ctx, reference); {
case err == nil, errors.Is(err, artifacts.Gone):
// Gone is the outcome wanted, already true. Recorded so the next sweep does not ask
// again for ever.
done = append(done, reference)
continue
default:
refused++
if refused == 1 {
// Once per sweep. A store that refuses one refuses all of them, and a hundred
// identical lines would bury the reason.
fmt.Fprintf(os.Stderr, "the artifact store kept %s: %v\n", reference, err)
}
if errors.Is(err, artifacts.ErrNotOurs) {
// **A fact about this record, so this record is skipped** (novox/hq issue 226). Not
// marked collected — the mesh did not remove it and should not claim to — and not a
// reason to stop, because the store was never asked. One of these at the front of
// the oldest-first order ended every sweep until this.
skipped++
if skipped == 1 {
fmt.Fprintf(os.Stderr,
"the sweep will not address %s and went on: %v\n", reference, err)
}
continue
}
// **Stopped at the first refusal by the STORE, not pushed through.** A store that refuses
// one refuses all of them — deletion disabled, the store down, the network gone — so
// going on would be a hundred identical failures and a hundred identical log lines in
// front of whoever was building something.
fmt.Fprintf(os.Stderr, "the artifact store kept %s, so nothing more was asked of it: %v\n",
reference, err)
left = len(references) - i
break
}
if len(done) > 0 {
// Recorded outside `within`: the deletions happened, and losing the record of them because
// the sweep ran out of budget would mean asking about them again for ever.
if err := inv.MarkCollected(ctx, done); err != nil {
// Said, and that is all: the artifacts are gone either way, and the only cost of an
// unrecorded collection is that the next sweep asks about them again.
fmt.Fprintf(os.Stderr, "the store let go of %d artifact(s) and the record of it did not keep: %v\n",
len(done), err)
return
@@ -106,18 +78,7 @@ func collect(ctx context.Context, inv *inventory.Inventory) {
fmt.Fprintf(os.Stderr, "the artifact store let go of %d artifact(s) the mesh no longer keeps\n",
len(done))
}
if left > 0 {
fmt.Fprintf(os.Stderr, "%d more to collect; the next build asks again\n", left)
}
if skipped > 0 {
fmt.Fprintf(os.Stderr, "%d artifact(s) the sweep will not address were skipped\n", skipped)
if refused > 0 {
fmt.Fprintf(os.Stderr, "%d artifact(s) were not collected; the next build asks again\n", refused)
}
}
// mostPerSweep is how many artifacts one sweep will ask about. Enough that a mesh building
// several times a day converges within days of this landing; small enough that no single build
// waits on the whole backlog.
const mostPerSweep = 200
// sweepBudget is the longest a sweep will keep a build waiting.
const sweepBudget = 60 * time.Second
@@ -1,90 +0,0 @@
package main
import (
"strings"
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
"github.com/novox/mesh-controller/internal/inventory"
)
// A fresh assignment is pushed before its credential exists (novox/hq issue 203): `assign` recorded
// the module, `push` sealed a random own secret where the bus credential belongs, and the process
// crash-looped until a person ran `module issue` and pushed again. Now assigning a module that speaks
// on the bus issues its credential in the same act — or, when the bus cannot be reached from here,
// says which verb to run — and a push never seals a placeholder in a credential's place.
func aTalker() catalogue.Manifest {
return catalogue.Manifest{Module: "talker", Version: "1",
OwnSecrets: catalogue.OwnSecrets{"broker": {Path: "/var/lib/mesh/talker/broker"}},
Resources: []map[string]any{
{"id": "state", "type": "directory", "path": "/var/lib/mesh/talker", "mode": "0700"},
}}
}
func TestAssigningAModuleThatSpeaksOnTheBusNamesItsCredential(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
register(t, open, aTalker())
// No bus is known to this process, so the credential cannot be issued here: the assignment
// stands and says exactly what must happen before a push — never silently.
said, err := assign(ctx, open, "laptop", "talker")
if err != nil {
t.Fatal(err)
}
if !strings.Contains(said, "module issue talker --node laptop") {
t.Fatalf("an assignment whose credential could not be issued does not name the verb:\n%s", said)
}
// And the push refuses to send it, naming the same verb, rather than sealing a placeholder.
plan, settings, err := planFor(ctx, open, "laptop")
if err != nil {
t.Fatal(err)
}
_, err = declarationFor(ctx, open, "laptop", plan, settings)
if err == nil {
t.Fatal("a push sealed a placeholder where talker's bus credential belongs")
}
if !strings.Contains(err.Error(), "module issue talker --node laptop") || !strings.Contains(err.Error(), "issue 203") {
t.Fatalf("the refusal does not say what to run: %v", err)
}
// Once the user is minted, the push goes on to the credential the mesh sealed, and re-assigning
// does not mint again: a credential rotates on purpose, never by habit.
if _, err := open.inventory.MintBusPassword(ctx, inventory.BusUser{
Username: "laptop.talker", Kind: inventory.BusModule, Node: "laptop", Module: "talker"}); err != nil {
t.Fatal(err)
}
hash, _, err := open.inventory.BusUserHash(ctx, "laptop.talker")
if err != nil {
t.Fatal(err)
}
said, err = assign(ctx, open, "laptop", "talker")
if err != nil {
t.Fatal(err)
}
if strings.Contains(said, "module issue") {
t.Fatalf("a module with a minted credential was told to issue one:\n%s", said)
}
again, _, err := open.inventory.BusUserHash(ctx, "laptop.talker")
if err != nil {
t.Fatal(err)
}
if again != hash {
t.Fatal("re-assigning rotated the credential")
}
}
// A module that declares no broker secret is left alone: nothing to issue, nothing said.
func TestAssigningAModuleThatDoesNotSpeakSaysNothingOfCredentials(t *testing.T) {
open := aMesh(t)
register(t, open, helloWeb())
said, err := assign(t.Context(), open, "laptop", "hello-web")
if err != nil {
t.Fatal(err)
}
if strings.Contains(said, "credential") {
t.Fatalf("a module without a broker secret was told about credentials:\n%s", said)
}
}
@@ -0,0 +1,33 @@
package main
// The broker opening belongs only on the node that listens on it (novox/hq: it leaked onto
// every enrolled node's declaration, opening a from-anywhere hole for a port nothing there
// serves). foundationPortsFor is the scope.
import (
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
)
func TestTheBrokerHostGetsTheFoundationOpening(t *testing.T) {
broker := catalogue.Manifest{Module: "lavinmq", Listens: []catalogue.Listening{
{Port: 5671, Protocol: "tcp", From: "mesh"},
{Port: 5672, Protocol: "tcp", From: "mesh"},
}}
got := foundationPortsFor(5671, []catalogue.Manifest{broker})
if len(got) != 1 || got[0] != 5671 {
t.Fatalf("the node that listens on the broker port keeps it; got %v", got)
}
}
func TestANodeThatOnlyDialsTheBrokerGetsNoOpening(t *testing.T) {
// ace's set: things that reach the broker as a client, none listening on 5671.
ace := []catalogue.Manifest{
{Module: "plex", Listens: []catalogue.Listening{{Port: 32400, Protocol: "tcp", From: "anywhere"}}},
{Module: "postgres", Listens: []catalogue.Listening{{Port: 5432, Protocol: "tcp", From: "mesh"}}},
}
if got := foundationPortsFor(5671, ace); got != nil {
t.Fatalf("a node that only dials out opens nothing for the broker; got %v", got)
}
}
-93
View File
@@ -1,93 +0,0 @@
package main
import (
"context"
"testing"
"github.com/novox/mesh-controller/internal/inventory"
)
// A declaration composed earlier is numbered lower than one composed later, whatever order the two
// are sent in (novox/hq issue 204). The number used to be taken at send time, after composing, so a
// declaration composed before an assignment changed and sent after a newer one carried the higher
// number — and the machine, which refuses a lower number, took the older content as the mesh's
// newest word. Taken before the composition reads anything, the order of numbers is the order of
// compositions, and the host's refusal does what it is for.
func TestADeclarationComposedEarlierIsNumberedLowerWhateverOrderItIsSent(t *testing.T) {
allot := numbered()
var composed []string
compose := func(stamp string) func(string) (sendable, error) {
return func(node string) (sendable, error) {
composed = append(composed, stamp)
return sendable{Resources: []map[string]any{{"id": node + "." + stamp}}}, nil
}
}
// Composed first — before an assignment changed — and sent last.
stale, _ := composeEach([]string{"anchor"}, allot, compose("before"))
// Composed after the change, sent first.
fresh, _ := composeEach([]string{"anchor"}, allot, compose("after"))
if stale[0].declared.Sequence != 1 || fresh[0].declared.Sequence != 2 {
t.Fatalf("the numbers do not follow the compositions: before=%d after=%d",
stale[0].declared.Sequence, fresh[0].declared.Sequence)
}
// Sent in the other order, the numbers do not change — so the machine that has applied the
// fresh one (2) refuses the stale one (1) when it arrives late.
if !(stale[0].declared.Sequence < fresh[0].declared.Sequence) {
t.Fatal("a declaration composed earlier must carry the lower number, however late it is sent")
}
if len(composed) != 2 || composed[0] != "before" {
t.Fatalf("compositions happened in an unexpected order: %v", composed)
}
}
// The number is taken before the first read of the composition, not after it: an allotter that
// fails leaves nothing composed for that machine, and the others are still composed.
func TestTheNumberIsTakenBeforeComposingAndItsFailureIsARefusal(t *testing.T) {
calls := 0
allot := func(node string) (int64, error) {
if node == "anchor" {
return 0, context.DeadlineExceeded
}
return 7, nil
}
sending, refusals := composeEach([]string{"anchor", "laptop"}, allot, func(node string) (sendable, error) {
calls++
if node == "anchor" {
t.Fatal("anchor was composed although its number could not be taken")
}
return sendable{}, nil
})
if calls != 1 || len(sending) != 1 || sending[0].node != "laptop" || sending[0].declared.Sequence != 7 {
t.Fatalf("laptop should be composed with its number and anchor refused: %v / %v", sending, refusals)
}
if len(refusals) != 1 {
t.Fatalf("anchor's failed number should be a refusal naming it: %v", refusals)
}
}
// What was sent is written down even when the sender's context is already cancelled (issue 204): a
// controller replaced mid-send had told the machine and never recorded it, so status read "applied,
// current" over a machine that had just been sent something else.
func TestASendIsRecordedEvenWhenTheSenderIsBeingCancelled(t *testing.T) {
inv := inventory.ForTest(t)
ctx, cancel := context.WithCancel(t.Context())
if _, err := inv.AddNode(ctx, "anchor"); err != nil {
t.Fatal(err)
}
cancel() // the sender is going away: its context is cancelled between the send and the record
body := []byte(`{"declaration":1,"resources":[]}`)
digest, err := recordSent(ctx, inv, "anchor", body)
if err != nil {
// NodeByName on the cancelled context may itself refuse; the record must still be possible
// through the detached context, so look the node up again on a live one.
t.Fatalf("recording a send after cancellation failed: %v", err)
}
outstanding, err := inv.Outstanding(t.Context(), "anchor")
if err != nil {
t.Fatal(err)
}
if outstanding != digest || digest != digestOf(body) {
t.Fatalf("the send was not recorded: outstanding %q, sent %q", outstanding, digest)
}
}
+5 -15
View File
@@ -8,7 +8,6 @@ package main
import (
"context"
"errors"
"flag"
"fmt"
"os"
@@ -179,8 +178,8 @@ func usage() {
seat <name> --to <node>/<module> hand a seat to that assignment as one act; never empty in between (ADR 0131)
board [--listen ADDR] the same three questions, as a page that holds nothing
api --issuer URL [--listen A] assign and unassign over http, for a surface that is not here
assign <node> <module>... put modules on a node, judged together (ADR 0207)
unassign <node> <module>... take them off
assign <node> <module> put a module on a node
unassign <node> <module> take it off
take <node> <module> preview a module's cutover on an adopted node: what runs beside
what it declares; --yes <digest> cuts it over as previewed
converge <node> [--yes <digest>] [--filter nftables] preview, then make, an adopted node converged
@@ -254,34 +253,25 @@ func parseAround(set *flag.FlagSet, args []string) ([]string, error) {
// became of a build nobody was watching.
func (b builds) Built(ctx context.Context, result link.BuildResult) error {
manifest, _, err := takeIn(ctx, b.inv, result)
// When it was asked, so a plan takes as its outcome only a build asked for it or after it
// (novox/hq 04-ISSUES/219). Zero when the id does not say.
asked, _ := link.BuildAskedAt(result.ID)
switch {
case err != nil && result.Failed != "":
fmt.Printf("%s: %v\n", result.ID, err)
if result.Module != "" {
planBuilt(ctx, b.open, result.Module, result.Commit, result.Failed, asked)
planBuilt(ctx, b.open, result.Module, result.Commit, result.Failed)
} else {
planFailedBuild(ctx, b.open, result)
}
return nil
case errors.Is(err, inventory.ErrSuperseded):
// Not a failure: the module is already at what a later request built. A plan that asked
// before that later request is answered by it; one that asked after it ignores this.
fmt.Printf("%s: %v\n", result.ID, err)
planBuilt(ctx, b.open, manifest.Module, result.Commit, "", asked)
return nil
case err != nil:
fmt.Printf("%s: heard and recorded, and not registered: %v\n", result.ID, err)
if manifest.Module != "" {
planBuilt(ctx, b.open, manifest.Module, result.Commit, err.Error(), asked)
planBuilt(ctx, b.open, manifest.Module, result.Commit, err.Error())
}
return nil
}
fmt.Printf("%s: %s %s registered, built on %s from %s\n",
result.ID, manifest.Module, manifest.Version, result.On, short(result.Commit))
saysWhenThePolicyActs(ctx, b.inv, manifest.Module)
planBuilt(ctx, b.open, manifest.Module, result.Commit, "", asked)
planBuilt(ctx, b.open, manifest.Module, result.Commit, "")
return nil
}
+4 -70
View File
@@ -147,40 +147,6 @@ func moduleCommand(ctx context.Context, args []string) error {
if err != nil {
return err
}
// **The same list, for something other than a person** (novox/hq ADR 0195): what each module
// is, where it runs, whether it is current, and what it says of itself.
if len(args) > 1 && args[1] == "--json" {
type listed struct {
Module string `json:"module"`
Version string `json:"version"`
Built string `json:"built,omitempty"`
Head string `json:"head,omitempty"`
Current bool `json:"current"`
Provided bool `json:"provided,omitempty"`
// Tools says whether the module answers tools anywhere it runs: a list of its own,
// a bundle the runtime serves, or a seat's verbs it claims (novox/hq ADR 0197) —
// what the console checks the bus's answers against.
Tools bool `json:"tools"`
On []string `json:"on"`
Provides []string `json:"provides,omitempty"`
Requires []string `json:"requires,omitempty"`
Claims []string `json:"claims,omitempty"`
Capabilities []string `json:"capabilities,omitempty"`
}
out := make([]listed, 0, len(entries))
for _, e := range entries {
m := e.Manifest
l := listed{Module: m.Module, Version: m.Version, Built: e.Source.BuiltFrom, Head: e.Source.Head,
Current: e.Provided || e.Source.Repository == "" || e.Source.Current(), Provided: e.Provided,
On: append([]string{}, e.On...), Provides: m.Offers(), Requires: m.Requires,
Capabilities: m.Capabilities, Tools: declaresTools(m)}
for _, c := range m.Claims {
l.Claims = append(l.Claims, c.At()+"/"+c.Name)
}
out = append(out, l)
}
return printJSON(out)
}
if len(entries) == 0 {
fmt.Println("this mesh knows about no modules yet")
return nil
@@ -334,10 +300,8 @@ func moduleCommand(ctx context.Context, args []string) error {
}
func assignCommand(ctx context.Context, verb string, args []string) error {
// Several modules in one act (novox/hq ADR 0207): holders that depend on each other — the
// service manager and the package manager — can only go on, or come off, together.
if len(args) < 2 {
return fmt.Errorf("%s <node> <module> [<module>…]", verb)
if len(args) != 2 {
return fmt.Errorf("%s <node> <module>", verb)
}
open, err := openStores(ctx)
if err != nil {
@@ -351,7 +315,7 @@ func assignCommand(ctx context.Context, verb string, args []string) error {
if verb == "unassign" {
act = unassign
}
said, err := act(ctx, open, args[0], args[1:]...)
said, err := act(ctx, open, args[0], args[1])
if said != "" {
fmt.Println(said)
}
@@ -593,7 +557,7 @@ func issueOnTheNewBus(ctx context.Context, inv *inventory.Inventory, m catalogue
user := broker.Principal{Kind: broker.KindModule, Node: node, Module: m.Module}.Username()
password, err := inv.MintBusPassword(ctx, inventory.BusUser{
Username: user, Kind: busKindOf(m.Module), Node: node, Module: m.Module,
Username: user, Kind: inventory.BusModule, Node: node, Module: m.Module,
})
if err != nil {
return err
@@ -613,16 +577,6 @@ func issueOnTheNewBus(ctx context.Context, inv *inventory.Inventory, m catalogue
return issueWith(ctx, inv, m, node, busAddress, known, reachable, user, password)
}
// busKindOf is what a module's bus user is recorded as: the node's tool runtime where the module is
// the runtime (novox/hq ADR 0175), a module otherwise. The username is the same either way — the
// runtime is issued through this same path — and the kind is what a reader of the records sees.
func busKindOf(module string) string {
if module == catalogue.RuntimeModule {
return inventory.BusNodeTools
}
return inventory.BusModule
}
// issueWith is the delivery half: the minted password sealed to the machine as the module's broker
// secret, and the module's consumer created where the bus can be reached. Split from the minting
// so the move can issue every module against a bus whose address it worked out itself
@@ -769,23 +723,3 @@ func claimsFor(ctx context.Context, inv *inventory.Inventory, m catalogue.Manife
}
return out, nil
}
// declaresTools is whether a module answers tools wherever it runs (novox/hq ADR 0197): it names
// tools of its own, its build delivers a bundle the node's runtime serves, or it claims a seat
// whose verbs it serves. A module with none is never expected to announce anything.
func declaresTools(m catalogue.Manifest) bool {
if len(m.Tools) > 0 {
return true
}
for _, b := range m.Bundles {
if len(b.Loads) > 0 {
return true
}
}
for _, c := range m.Claims {
if len(c.Serves) > 0 {
return true
}
}
return false
}
-32
View File
@@ -3,7 +3,6 @@ package main
import (
"context"
"os"
"reflect"
"strings"
"testing"
@@ -266,12 +265,6 @@ func TestTheResolverIsToldEveryMachineOnTheNetworkAndToldAgainWhenOneLeaves(t *t
if _, err := assign(ctx, open, "anchor", "dnsmasq"); err != nil {
t.Fatal(err)
}
// Its bus credential, as assigning issues it where the bus is reachable (novox/hq issue 203):
// no bus is known to this test, so it is minted here, or composing refuses the placeholder.
if _, err := open.inventory.MintBusPassword(ctx, inventory.BusUser{
Username: "anchor.dnsmasq", Kind: inventory.BusModule, Node: "anchor", Module: "dnsmasq"}); err != nil {
t.Fatal(err)
}
zones := func() string {
t.Helper()
for _, r := range composed(t, open, "anchor").Resources {
@@ -310,28 +303,3 @@ func TestTheResolverIsToldEveryMachineOnTheNetworkAndToldAgainWhenOneLeaves(t *t
t.Fatalf("a machine that left the network is still a wildcard, or the one that stayed is not:\n%s", after)
}
}
// The roster is the machines and nothing else (novox/hq ADR 0191): each node's internal domain covers
// every route on it, and a node's public domains are public DNS's. A routed name in `.Names` was a
// private answer for a public name, handed by a resolver serving a LAN to a phone that could not use it.
func TestTheRosterNamesOnlyTheMachines(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
gens, err := generators(ctx, open)
if err != nil {
t.Fatal(err)
}
for _, node := range []string{"anchor", "laptop"} {
plan, settings, err := planFor(ctx, open, node)
if err != nil {
t.Fatal(err)
}
with, _, err := renderingFor(ctx, open, node, plan, settings, gens, Reading)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(with.Names, with.Machines) {
t.Fatalf("%s's roster names more than the machines:\n names %v\n machines %v", node, with.Names, with.Machines)
}
}
}
-26
View File
@@ -2,7 +2,6 @@ package main
import (
"context"
"encoding/json"
"errors"
"flag"
"fmt"
@@ -45,21 +44,6 @@ func nodeCommand(ctx context.Context, args []string) error {
if err != nil {
return err
}
// **The same list, for something other than a person** — the console's discovery reads it
// (novox/hq ADR 0195), and a reader that parses a printed column breaks when it is reworded.
if len(args) > 1 && args[1] == "--json" {
type listed struct {
Name string `json:"name"`
Heard string `json:"heard"`
Mode string `json:"mode"`
ID string `json:"id"`
}
out := make([]listed, 0, len(nodes))
for _, n := range nodes {
out = append(out, listed{Name: n.Name, Heard: heardFrom(n), Mode: modeOf(n), ID: n.ID})
}
return printJSON(out)
}
if len(nodes) == 0 {
// Said rather than printed as nothing: an empty list and a failed read must never
// look the same, and this command answering "none" is only honest because getting
@@ -516,13 +500,3 @@ func orNotReported(s string) string {
}
return s
}
// printJSON prints a value as indented JSON, the shape every `--json` answers in.
func printJSON(v any) error {
body, err := json.MarshalIndent(v, "", " ")
if err != nil {
return err
}
fmt.Println(string(body))
return nil
}
+1 -26
View File
@@ -1,7 +1,6 @@
package main
import (
"reflect"
"strings"
"testing"
"time"
@@ -192,7 +191,7 @@ func TestWhatAHandedOverModuleRecordsAboutItsSource(t *testing.T) {
t.Fatalf("the source records as %+v", from)
}
// A manifest with no provenance at all is legitimate: fixing something in a hurry.
if from, err := whereItComesFrom("", "", "", "", false); err != nil || !reflect.DeepEqual(from, inventory.Source{}) {
if from, err := whereItComesFrom("", "", "", "", false); err != nil || from != (inventory.Source{}) {
t.Fatalf("a manifest handed over with no provenance was refused: %+v, %v", from, err)
}
for _, c := range []struct {
@@ -211,27 +210,3 @@ func TestWhatAHandedOverModuleRecordsAboutItsSource(t *testing.T) {
}
}
}
// novox/hq 04-ISSUES/215: a module once built at a commit still follows its branch — a merge into it
// matches the module, and a plan re-asks the branch, not the old commit.
func TestAModuleBuiltAtACommitStillFollowsItsBranch(t *testing.T) {
m := link.SourceMoved{Owner: "novox", Repo: "mesh-catalog", Base: "main"}
pinned := inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Ref: "9c97a8a"}
if !sourceIs(pinned, m) {
t.Error("a module whose record names a commit is left out of a merge into its branch")
}
full := inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Ref: "9c97a8a1d2c3b4a5f60718293a4b5c6d7e8f9012"}
if !sourceIs(full, m) {
t.Error("a full commit hash is read as a branch")
}
if got := followedBranch("9c97a8a"); got != "" {
t.Errorf("a plan would re-ask the old commit %q", got)
}
if got := followedBranch("release"); got != "release" {
t.Errorf("a branch is not followed as named: %q", got)
}
// A module that follows another branch is still not this merge's.
if sourceIs(inventory.Source{Repository: "novox/mesh-catalog", Seat: "git", Ref: "release"}, m) {
t.Error("a module following another branch was matched")
}
}
+120 -119
View File
@@ -8,16 +8,16 @@ import (
"flag"
"fmt"
"os"
"slices"
"sort"
"strings"
"sync"
"github.com/novox/mesh-controller/internal/broker"
"github.com/novox/mesh-controller/internal/catalogue"
"github.com/novox/mesh-controller/internal/inventory"
"github.com/novox/mesh-controller/internal/licences"
"github.com/novox/mesh-controller/internal/overlay"
"net"
"strconv"
)
// working out what one machine should be.
@@ -129,7 +129,6 @@ func planFor(ctx context.Context, open *stores, nodeName string) (catalogue.Reso
// a mesh-wide gatherer may pass over — see notResolvable.
return catalogue.Resolution{}, nil, notResolvable{err}
}
logUnheld(nodeName, resolved.Unheld)
// The credential for each thing this node takes from elsewhere. Made once and kept, so the
// password a provider is told to create is the one its consumer was given — and sealed to
@@ -536,23 +535,6 @@ func renderingFor(ctx context.Context, open *stores, node string,
var sealed string
var err error
if choosing == Allocating {
// **The broker credential is never invented here** (novox/hq issue 203). Every other
// own secret is the mesh's to make — a password nobody else knows — but this one
// is an account on the bus, minted by `module issue` and sealed by it; a push that
// made a random one would deliver a file the process cannot read and report the
// machine applied. Refused by name, with the verb.
if name == "broker" {
user := broker.Principal{Kind: broker.KindModule, Node: node, Module: m.Module}.Username()
if _, minted, err := inv.BusUserHash(ctx, user); err != nil {
return catalogue.Rendering{}, inventory.Node{}, err
} else if !minted {
return catalogue.Rendering{}, inventory.Node{}, fmt.Errorf(
"%s on %s has no bus credential: nothing was issued for %s, and a push "+
"would seal a placeholder its process cannot read (novox/hq issue 203). "+
"`module issue %s --node %s`, then push again",
m.Module, node, user, m.Module, node)
}
}
sealed, err = inv.SecretForModule(ctx, node, m.Module, name)
} else {
var held bool
@@ -648,24 +630,43 @@ func renderingFor(ctx context.Context, open *stores, node string,
}
}
// **The roster is the machines and nothing else** (novox/hq ADR 0191). Each node has one internal
// domain, `<node>.internal`, and every route on it is a name under that domain (ADR 0151), which
// the resolver answers with one wildcard per machine — so no route needs a line of its own. A
// node's public domains are the operator's and public DNS answers them; the mesh gives no private
// answer for any of them. The roster once carried every routed name, public ones included, and a
// resolver that also serves a LAN handed a phone a tunnel address for the mail server.
// `.Names` and `.Machines` stay two fields so a module's template keeps rendering (issue 111).
// And every routed name → the node that serves it (novox/hq ADR 0066). Alongside the
// `<node>.internal` names above, so a container — or an internal ACME validator — resolves a
// routed name to the proxy that serves it, mesh-wide. The mesh publishes the names it was told
// to serve and knows nothing about what they mean.
// Kept apart from the machines, because a fact about the machines must not be handed the names
// the mesh merely serves (novox/hq 04-ISSUES/111).
machines := make(map[string]string, len(names))
for name, at := range names {
machines[name] = at
}
routes, err := routeNamesInTheMesh(ctx, open)
if err != nil {
return catalogue.Rendering{}, inventory.Node{}, err
}
for name, at := range routes {
names[name] = at
}
// **The bus is never public** (novox/hq ADR 0169). It was a foundation port — widened from the
// broker's own `from: mesh` to from-anywhere on the broker's host, so a machine could enrol
// before it had an address on the private network. A machine joins through the tunnel now, and
// every link to the bus crosses it, so its reach is what the `nats` module declares: the mesh.
// Nothing the mesh itself needs is opened beyond what a module declares.
// The ports the mesh itself needs open, which no module declares. Read from the broker this
// control plane was told about rather than written down twice: the address a node is handed in
// its token and the port its machine must accept on are the same fact.
//
// **Only on the node that listens on it** (novox/hq issue: the broker opening leaked onto
// every node). The opening exists to WIDEN the broker's port to from-anywhere — a machine
// enrolling is not on the mesh yet, so the broker's own `from: mesh` listen would refuse its
// first dial. That widening belongs on the broker's host and nowhere else: a node that only
// dials out needs no incoming rule, and an opening for a port nothing here listens on is a
// from-anywhere hole for a dead port. So the foundation port is kept only when a module
// resolved onto THIS node actually listens on it.
var foundation []int
if b, err := broker.FromEnvironment(); err == nil {
if _, port, err := net.SplitHostPort(b.Address); err == nil {
if n, err := strconv.Atoi(port); err == nil {
foundation = foundationPortsFor(n, plan.Modules)
}
}
}
// And, for a module that keeps them, every operator-sealed secret in the mesh — the vault's
// copy, outside the store (novox/hq ADR 0085, amended). Read only; nothing here mints. The
@@ -737,6 +738,76 @@ func renderingFor(ctx context.Context, open *stores, node string,
}, record, nil
}
// routeNamesInTheMesh is every routed name and the address of the node that serves it (novox/hq
// ADR 0066).
//
// **Mesh-wide, so any container resolves any routed name to its proxy** — including an internal
// ACME validator, which cannot complete a challenge for a name it cannot reach. A routed name is
// composed on the consumer's node (from its label and that node's public domain) and served by the
// node answering the consumer's route requirement; this gathers both.
//
// It reads route names off resolutions rather than a table because there is no table: a route is a
// contribution, computed from what each node runs. Name-agnostic — a contribution counts as a
// routed name only because it carried a label the mesh composed, never because the mesh knows what
// "route" means. A node that does not resolve is skipped, so one machine's broken set does not cost
// the rest their names.
//
// **A node that could not be READ is a different matter and is raised.** Skipping one states, to
// every machine at once, that its names do not exist — and since the roster is part of every
// container's identity, that withdraws them and replaces every container (novox/hq 04-ISSUES/152,
// 151). So every failure here says which machine and which read, because the alternative is a
// mesh-wide refusal with nothing named in it.
func routeNamesInTheMesh(ctx context.Context, open *stores) (map[string]string, error) {
inv := open.inventory
places, err := inv.Overlays(ctx)
if err != nil {
return nil, fmt.Errorf("where the machines are cannot be read: %w", err)
}
address := map[string]string{}
for _, p := range places {
if strings.TrimSpace(p.Address) != "" {
address[p.Name] = p.Address
}
}
nodes, err := inv.Nodes(ctx)
if err != nil {
return nil, fmt.Errorf("which machines the mesh has cannot be read: %w", err)
}
// Every machine's resolution first, then the names across them at once: which node serves a
// name is a question about the graph — the consumer on one machine, the provider on another —
// and answered wrongly by looking at one contribution at a time (novox/hq issue 178).
plans := map[string]catalogue.Resolution{}
settings := map[string]catalogue.SettingsBy{}
for _, n := range nodes {
plan, layers, err := planFor(ctx, open, n.Name)
switch {
case unresolvable(err):
// Their set does not compose, so they serve no names. Passed over, so one machine's
// broken set does not cost the rest theirs.
continue
case err != nil:
// The mesh could not be asked. Returning the roster without this machine's names would
// state that they do not exist — to every machine, and indistinguishably from the
// operator having withdrawn them (novox/hq 04-ISSUES/152).
return nil, fmt.Errorf("the names %s serves cannot be read: %w", n.Name, err)
}
plans[n.Name], settings[n.Name] = plan, layers
}
served, err := catalogue.NamesServed(plans, settings)
if err != nil {
return nil, err
}
out := map[string]string{}
for name, node := range served {
if at := address[node]; at != "" {
out[name] = at
}
}
return out, nil
}
// certificateFor is what the mesh certifies about one machine's internal name.
//
// It reaches across two contexts and reads neither one's store from the other: `inventory` knows
@@ -1309,6 +1380,23 @@ func composeBusUsers(ctx context.Context, inv *inventory.Inventory,
return broker.ComposeAccounts(filled)
}
// foundationPortsFor is the broker port, kept only when a module resolved onto this node listens
// on it (novox/hq issue: the broker opening leaked onto every node). The foundation opening
// exists to WIDEN the broker's `from: mesh` port to from-anywhere, because a machine enrolling is
// not on the mesh yet and its first dial would be refused. That widening belongs on the broker's
// host alone: a node that only dials out needs no incoming rule, and an opening for a port
// nothing here listens on is a from-anywhere hole for a dead port.
func foundationPortsFor(brokerPort int, modules []catalogue.Manifest) []int {
for _, m := range modules {
for _, l := range m.Listens {
if l.Port == brokerPort {
return []int{brokerPort}
}
}
}
return nil
}
// providerModuleOf is which module answers a need on the providing node: the one in this node's
// own set when the provider is here, else the one the catalogue says offers it.
func providerModuleOf(resolved catalogue.Resolution, open *stores, ctx context.Context, n catalogue.Needed) string {
@@ -1328,90 +1416,3 @@ func providerModuleOf(resolved catalogue.Resolution, open *stores, ctx context.C
}
return ""
}
// unheldLogged is what was last logged about each node's unmet seat dependencies, so the log says
// each change once (novox/hq ADR 0207), on stderr so `status --json` stays a document.
//
// **The serving controller's log only.** planFor runs for every node on every push, assignment and
// status — `blockedElsewhere` alone resolves the whole mesh — and a one-shot command starts with an
// empty memory, so every node's report was "a change" and a push printed the whole mesh's list,
// burying the line about the node it acted on. A command says what concerns its own act instead
// (unheldChange, reportUnheldPushed); the full list is `status`'s.
var (
unheldLogged = map[string]string{}
unheldLoggedMu sync.Mutex
logUnheldChanges bool
)
// logUnheld logs a node's unmet seat dependencies when they differ from what was last logged for
// it, including when they become none — in the serving controller, and nowhere else.
func logUnheld(node string, unheld []catalogue.Unheld) {
if !logUnheldChanges {
return
}
lines := make([]string, 0, len(unheld))
for _, u := range unheld {
lines = append(lines, u.String())
}
now := strings.Join(lines, "\n")
unheldLoggedMu.Lock()
before, seen := unheldLogged[node]
unheldLogged[node] = now
unheldLoggedMu.Unlock()
if (seen && before == now) || (!seen && now == "") {
return
}
if now == "" {
fmt.Fprintf(os.Stderr, "%s: every seat its modules depend on is held (novox/hq ADR 0207)\n", node)
return
}
fmt.Fprintf(os.Stderr, "%s: %d unmet seat dependenc(ies), reported and not refused (novox/hq ADR 0207):\n %s\n",
node, len(lines), strings.Join(lines, "\n "))
}
// unheldChange is what an act on one node changed about its unmet seat dependencies, judged over
// its assignments before and after (novox/hq ADR 0207): each dependency now unmet that was not —
// which includes every one of a module just assigned — and each now met that was not. Nothing about
// any other node, and nothing that was already true before the act.
func unheldChange(shelf map[string]catalogue.Manifest, node string, before, after []string) []string {
judge := func(names []string) map[string]catalogue.Unheld {
var set []catalogue.Manifest
for _, n := range names {
if m, known := shelf[n]; known {
set = append(set, m)
}
}
out := map[string]catalogue.Unheld{}
for _, u := range catalogue.UnheldDependencies(shelf, node, set, nil) {
out[u.Module+" "+u.Seat] = u
}
return out
}
was, now := judge(before), judge(after)
var lines []string
for _, k := range sortedNames(now) {
if _, already := was[k]; !already {
lines = append(lines, "but "+now[k].String())
}
}
for _, k := range sortedNames(was) {
if _, still := now[k]; still {
continue
}
u := was[k]
if !slices.Contains(after, u.Module) {
continue // went with its module, which says nothing about the seat
}
lines = append(lines, fmt.Sprintf("and %s on %s now has %s held", u.Module, node, u.Seat))
}
return lines
}
func sortedNames[V any](m map[string]V) []string {
out := make([]string, 0, len(m))
for k := range m {
out = append(out, k)
}
sort.Strings(out)
return out
}
@@ -1,47 +0,0 @@
package main
import (
"testing"
"time"
"github.com/novox/mesh-controller/internal/inventory"
)
// novox/hq issue 213: for the moment a machine hands its controller over, the container and the
// process both run the plan timer on one store. Only the one holding the plans moves them; the other
// leaves them alone, and moves them once they are let go.
func TestAControllerLeavesThePlansToTheOneHoldingThem(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
now := time.Now().UTC()
// Every tier done: the next step is the plan's last, and needs nothing but the store.
plan := inventory.Plan{ID: "plan-213", Repository: "r", Commit: "abc", Created: now, Updated: now,
State: inventory.PlanRolling, Tier: 1, Tiers: [][]string{{"app"}},
Modules: map[string]*inventory.PlanModule{"app": {State: "built"}}}
if err := open.inventory.SavePlan(ctx, plan); err != nil {
t.Fatal(err)
}
// The other controller: its own connections to the same store, holding the plans.
other, err := inventory.Open(ctx)
if err != nil {
t.Fatal(err)
}
t.Cleanup(other.Close)
release, err := other.HoldPlans(ctx, false)
if err != nil {
t.Fatal(err)
}
t.Cleanup(release) // before the close above: a pool waits for a connection still held
advancePlans(ctx, open)
if p, err := open.inventory.PlanByID(ctx, "plan-213"); err != nil || !p.Open() {
t.Fatalf("a controller moved a plan another held: %+v %v", p, err)
}
release()
advancePlans(ctx, open)
if p, err := open.inventory.PlanByID(ctx, "plan-213"); err != nil || p.State != inventory.PlanDone {
t.Fatalf("the plan did not move once it was let go: %+v %v", p, err)
}
}
+39 -128
View File
@@ -8,7 +8,6 @@ import (
"errors"
"flag"
"fmt"
"io"
"log"
"os"
"sort"
@@ -63,9 +62,6 @@ func connectLink(ctx context.Context, inv *inventory.Inventory, enroller link.En
}
func serve(ctx context.Context) error {
// The one process whose log is read over time, so the one that says each change to a node's
// unmet seat dependencies once (novox/hq ADR 0207).
logUnheldChanges = true
open, err := openStores(ctx)
if err != nil {
return err
@@ -155,12 +151,6 @@ func serve(ctx context.Context) error {
return err
}
defer stopServing()
// And says so on the bus (novox/hq ADR 0197): what it serves, as the NATS services protocol asks.
stopAnnouncing, err := bus.Announce(seatAnnouncement(handlers), log.New(os.Stdout, "", log.LstdFlags))
if err != nil {
return err
}
defer stopAnnouncing()
return server.Serve(ctx)
}
@@ -215,12 +205,6 @@ func declare(ctx context.Context, args []string) error {
if err := link.Declare(ctx, server.Bus(), ident, node, raw, 15*time.Second); err != nil {
return err
}
// Written down like every other send (novox/hq issue 204): a declaration a person sent by hand
// is still what the machine was last told, and status must not read it as current for the one
// the mesh would compose.
if _, err := recordSent(ctx, inv, node, raw); err != nil {
return err
}
fmt.Printf("sent %s a signed declaration (%d bytes)\n", node, len(raw))
return nil
}
@@ -364,10 +348,7 @@ func pushCommand(ctx context.Context, args []string) error {
if err != nil {
return err
}
// Each machine's unmet seat dependencies (novox/hq ADR 0207), said after the sends: in full
// for a machine named, as a count for each of many — the full list is `status`'s.
unheld := map[string][]catalogue.Unheld{}
sending, refusals := composeEach(asked, allotting(held, inv), func(node string) (sendable, error) {
sending, refusals := composeEach(asked, func(node string) (sendable, error) {
plan, settings, err := planFor(held, open, node)
if err != nil {
return sendable{}, err
@@ -376,7 +357,6 @@ func pushCommand(ctx context.Context, args []string) error {
// healthy modules beside it are still resolved and sent. Reported so it is not silently
// dropped — the remedy is to move it, and until then the rest of the node converges.
reportUnhostable(node, plan)
unheld[node] = plan.Unheld
// The private network is in here with everything else. It used to be composed separately
// and prepended, which meant every machine with an address was on it and no machine could
// be kept off. It is a module now, so it arrives the way a module does.
@@ -390,8 +370,12 @@ func pushCommand(ctx context.Context, args []string) error {
sentDigest := map[string]string{}
defer release()
for _, s := range sending {
// The number is inside the signed bytes, so a replayed older declaration cannot borrow a
// newer one's (novox/hq 04-ISSUES/107); it was taken when the composition began (issue 204).
// Numbered under the hold, one higher than the last, before the body exists — the number is
// inside the signed bytes, so a replayed older declaration cannot borrow a newer one's
// (novox/hq 04-ISSUES/107).
if err := number(ctx, inv, &s); err != nil {
return err
}
body, err := s.declared.Body()
if err != nil {
return err
@@ -401,16 +385,19 @@ func pushCommand(ctx context.Context, args []string) error {
}
// After it is away, not before. A digest recorded for something that failed to send would
// make the machine look current for a declaration it never received.
digest, err := recordSent(ctx, inv, s.node, body)
record, err := inv.NodeByName(ctx, s.node)
if err != nil {
return err
}
digest := digestOf(body)
if err := inv.RecordSent(ctx, record.ID, digest); err != nil {
return err
}
sentDigest[s.node] = digest
fmt.Printf("sent %s %d resource(s)\n", s.node, len(s.declared.Resources))
}
release()
fmt.Printf("\n%d node(s) told\n", len(sending))
reportUnheldPushed(os.Stdout, len(args) == 1, asked, unheld)
// And each machine's memberships, as every other send does (ADR 0160): a push is the one most
// operators run, and on 2026-10-01 it was the one path that issued none.
if err := issueMemberships(ctx, open, server, sending); err != nil {
@@ -489,7 +476,11 @@ func pushCommand(ctx context.Context, args []string) error {
15*time.Second); err != nil {
return err
}
if _, err := recordSent(ctx, inv, s.node, body); err != nil {
record, err := inv.NodeByName(ctx, s.node)
if err != nil {
return err
}
if err := inv.RecordSent(ctx, record.ID, digestOf(body)); err != nil {
return err
}
fmt.Printf("sent %s %d resource(s)\n", s.node, len(s.declared.Resources))
@@ -578,31 +569,17 @@ type readyNode struct {
//
// The all-or-nothing rule is kept where it means something — sendTo, which rotates a credential
// across two machines that must agree — and dropped here, where it never did.
func composeEach(names []string, allot func(node string) (int64, error),
func composeEach(names []string,
compose func(node string) (sendable, error)) ([]readyNode, []string) {
var sending []readyNode
var refusals []string
for _, name := range names {
// **Numbered before it is composed, not before it is sent** (novox/hq issue 204). The
// number says where this declaration stands against every other the mesh composed for the
// machine, and the host refuses one lower than the last it applied. Taken at send time, as
// it was, a declaration composed a minute ago — before an assignment changed — went out with
// a number higher than one composed after the change and sent before it, and the machine
// took the older content as the newer word: on 2026-10-02 a runtime assigned and applied on
// two machines was undone two seconds later by exactly that. Taken here, before the first
// read, what was composed earlier is numbered lower whatever order the sends happen in.
seq, err := allot(name)
if err != nil {
refusals = append(refusals, fmt.Sprintf("%s:\n%v", name, err))
continue
}
declared, err := compose(name)
if err != nil {
refusals = append(refusals, fmt.Sprintf("%s:\n%v", name, err))
continue
}
declared.Sequence = seq
if len(declared.Resources) == 0 {
// Sent, not skipped (novox/hq issue 127). A node whose declaration composes to
// nothing may have HELD something before — the broker opening a placement gave it,
@@ -630,10 +607,13 @@ func sendRound(ctx context.Context, open *stores, names []string,
return nil, err
}
defer release()
sending, refused := composeEach(names, allotting(held, open.inventory), func(node string) (sendable, error) {
sending, refused := composeEach(names, func(node string) (sendable, error) {
return compose(held, node)
})
for _, s := range sending {
if err := number(ctx, open.inventory, &s); err != nil {
return refused, err
}
body, err := s.declared.Body()
if err != nil {
return refused, err
@@ -690,12 +670,6 @@ func sendTo(ctx context.Context, open *stores, names []string) error {
var sending []readyNode
var refusals []string
for _, name := range names {
// Numbered before composing, for the reason composeEach gives (novox/hq issue 204).
seq, err := allot(ctx, inv, name)
if err != nil {
refusals = append(refusals, fmt.Sprintf("%s:\n%v", name, err))
continue
}
plan, settings, err := planFor(ctx, open, name)
if err != nil {
refusals = append(refusals, fmt.Sprintf("%s:\n%v", name, err))
@@ -707,7 +681,6 @@ func sendTo(ctx context.Context, open *stores, names []string) error {
refusals = append(refusals, fmt.Sprintf("%s:\n%v", name, err))
continue
}
declared.Sequence = seq
reportLeftOut(name, declared)
sending = append(sending, readyNode{name, declared})
}
@@ -723,6 +696,9 @@ func sendTo(ctx context.Context, open *stores, names []string) error {
defer server.Close()
for _, s := range sending {
if err := number(ctx, inv, &s); err != nil {
return err
}
body, err := s.declared.Body()
if err != nil {
return err
@@ -730,7 +706,11 @@ func sendTo(ctx context.Context, open *stores, names []string) error {
if err := link.Declare(ctx, server.Bus(), ident, s.node, body, 15*time.Second); err != nil {
return err
}
if _, err := recordSent(ctx, inv, s.node, body); err != nil {
record, err := inv.NodeByName(ctx, s.node)
if err != nil {
return err
}
if err := inv.RecordSent(ctx, record.ID, digestOf(body)); err != nil {
return err
}
fmt.Printf(" sent %s %d resource(s)\n", s.node, len(s.declared.Resources))
@@ -756,16 +736,6 @@ func issueMemberships(ctx context.Context, open *stores, server *link.Server, se
if !ok {
return nil
}
// **Every declared state's bucket, before the memberships that name it** (novox/hq ADR 0201). The
// raise at start asserts them too, but a module registered and assigned since would otherwise have
// its bucket only after the control plane next restarts — found the first time a module declared
// state: its bundle asked for a bucket that did not exist. Idempotent and cheap; a failure is said
// and the push stands, as a membership's is.
if buckets, err := open.inventory.DeclaredBuckets(ctx); err != nil {
fmt.Printf(" the modules' state could not be read, so no bucket was asserted: %v\n", err)
} else if _, err := broker.RaiseBuckets(broker.OnConn(bus.Conn), buckets); err != nil {
fmt.Printf(" the modules' state could not be asserted on the bus: %v — the next push tries again\n", err)
}
// The declarations are sent and recorded by now; a membership that cannot be issued is said
// and does not unsay them. Every runtime without one serves the shape it derives (ADR 0160), so
// the push stands, the first failure is named once, and the next push tries again.
@@ -917,21 +887,6 @@ func raiseTheBus(ctx context.Context, inv *inventory.Inventory, address string)
if err := broker.RaiseSeats(js, inventory.MeshSeats(), holders); err != nil {
return err
}
// Every module's state (novox/hq ADR 0201), from the catalogue: a bucket exists from
// registration, so a module reading one may watch it before its owner runs anywhere. One that
// nothing declares any more is said and kept — what it holds is data.
buckets, err := inv.DeclaredBuckets(ctx)
if err != nil {
return err
}
undeclared, err := broker.RaiseBuckets(js, buckets)
if err != nil {
return err
}
if len(undeclared) > 0 {
fmt.Printf("the bus holds state nothing declares any more, kept because it is data: %s — "+
"removing it is a person's act\n", strings.Join(undeclared, ", "))
}
// And how every module hears what it consumes. Derived from the same records the user list is
// composed from, so a module the mesh grants a consumer's subjects has that consumer waiting.
// Done on every raise, not only when a credential is issued: every module moved onto this bus
@@ -955,8 +910,8 @@ func raiseTheBus(ctx context.Context, inv *inventory.Inventory, address string)
}
hearing++
}
fmt.Printf("the bus at %s has its streams, %d machine(s) can hear a declaration, %d module(s) "+
"can hear what they consume, and %d bucket(s) of state\n", broker.BareAddress(address), len(names), hearing, len(buckets))
fmt.Printf("the bus at %s has its streams, %d machine(s) can hear a declaration, and %d module(s) "+
"can hear what they consume\n", broker.BareAddress(address), len(names), hearing)
return nil
}
@@ -996,59 +951,15 @@ func seatHolders(ctx context.Context, inv *inventory.Inventory) (map[string]brok
}
// number gives one send the next sequence for its node (novox/hq 04-ISSUES/107).
// allotting is allot over one inventory, in the shape composeEach takes.
func allotting(ctx context.Context, inv *inventory.Inventory) func(node string) (int64, error) {
return func(node string) (int64, error) { return allot(ctx, inv, node) }
}
// allot takes the next sequence for a machine — the number its next declaration carries.
func allot(ctx context.Context, inv *inventory.Inventory, node string) (int64, error) {
record, err := inv.NodeByName(ctx, node)
func number(ctx context.Context, inv *inventory.Inventory, s *readyNode) error {
record, err := inv.NodeByName(ctx, s.node)
if err != nil {
return 0, err
return err
}
return inv.NextSequence(ctx, record.ID)
}
// recordSent writes down what a machine was just sent, and returns the digest.
//
// **On a context that outlives the caller's** (novox/hq issue 204). The record is written after the
// declaration is away, so a send that failed is never recorded as current — and a controller being
// replaced mid-send had its context cancelled between the two, so the machine was told and the mesh
// never wrote it down: status read "applied, current" over a machine that had just been sent
// something else. What was sent was sent; the record of it must not depend on the sender living
// another second. Bounded, so a store that is away does not hold a dying process open for ever.
func recordSent(ctx context.Context, inv *inventory.Inventory, node string, body []byte) (string, error) {
kept, cancel := context.WithTimeout(context.WithoutCancel(ctx), 10*time.Second)
defer cancel()
record, err := inv.NodeByName(kept, node)
seq, err := inv.NextSequence(ctx, record.ID)
if err != nil {
return "", err
}
digest := digestOf(body)
if err := inv.RecordSent(kept, record.ID, digest); err != nil {
return "", err
}
return digest, nil
}
// reportUnheldPushed says what a push's machines lack of the seats their modules depend on
// (novox/hq ADR 0207): every line for a machine the push named, since that is the machine somebody
// is looking at, and one line per machine otherwise — a list per machine across the mesh is the
// hundred lines that buried the one that mattered. Nothing for a machine that lacks nothing.
func reportUnheldPushed(w io.Writer, named bool, asked []string, unheld map[string][]catalogue.Unheld) {
for _, node := range asked {
lines := unheld[node]
if len(lines) == 0 {
continue
}
if named {
fmt.Fprintf(w, "\n%s has %d unmet seat dependenc(ies) (novox/hq ADR 0207):\n", node, len(lines))
for _, u := range lines {
fmt.Fprintf(w, " %s\n", u)
}
continue
}
fmt.Fprintf(w, "%s: %d unmet seat dependenc(ies) — see `status`\n", node, len(lines))
return err
}
s.declared.Sequence = seq
return nil
}
+2 -8
View File
@@ -17,7 +17,7 @@ import (
// the wrong machine no longer refuses the whole node), applied one level up.
func TestOneUnresolvableNodeStillLetsTheRestBeSent(t *testing.T) {
sending, refusals := composeEach(
[]string{"anchor", "home-server", "laptop"}, numbered(),
[]string{"anchor", "home-server", "laptop"},
func(node string) (sendable, error) {
if node == "anchor" {
return sendable{}, errors.New(`nothing provides "acme-ca", wanted by route-proxy`)
@@ -43,7 +43,7 @@ func TestOneUnresolvableNodeStillLetsTheRestBeSent(t *testing.T) {
// (novox/hq issue 127): it may have held something before, and only sending the empty
// declaration tells it to drop what the mesh owned. It is never a refusal.
func TestAnEmptyDeclarationIsSentSoTheNodeDropsWhatItHeld(t *testing.T) {
sending, refusals := composeEach([]string{"spare"}, numbered(),
sending, refusals := composeEach([]string{"spare"},
func(string) (sendable, error) { return sendable{}, nil })
if len(sending) != 1 || len(refusals) != 0 {
t.Errorf("an empty declaration must be sent, not skipped or refused: %v / %v", sending, refusals)
@@ -74,9 +74,3 @@ func TestASkippedMachineIsStillAnError(t *testing.T) {
}
}
}
// numbered is an allotter for tests: one higher per call, as the inventory's is per machine.
func numbered() func(string) (int64, error) {
var n int64
return func(string) (int64, error) { n++; return n, nil }
}
-6
View File
@@ -3,7 +3,6 @@ package main
import (
"encoding/json"
"fmt"
"github.com/novox/mesh-controller/internal/catalogue"
"github.com/novox/mesh-controller/internal/inventory"
"sort"
"time"
@@ -74,10 +73,6 @@ type meshStatus struct {
// alone. A document without this called a machine well while a predecessor's chain refused
// what the mesh declared open.
Filtered []machineFiltered `json:"filtered,omitempty"`
// Unheld is every module on a machine whose resources are applied through a seat nothing on
// that machine holds, with the modules that could hold it (novox/hq ADR 0207). Absent when every
// dependency is met. Reported, not refused, until the switch.
Unheld []catalogue.Unheld `json:"unheld,omitempty"`
}
// machineFiltered is one rule set on a converged machine that the mesh did not write and that
@@ -209,7 +204,6 @@ func statusAsJSON(asked answers) ([]byte, error) {
out.Filtered = append(out.Filtered, machineFiltered{Node: name, Where: x.Where, Owner: x.Owner, Refuses: x.Refuses})
}
}
out.Unheld = asked.unheld
for name := range asked.refused {
out.Unresolved = append(out.Unresolved, machineUnresolved{
Node: name, Problem: asked.refused[name]})
+9 -142
View File
@@ -2,7 +2,6 @@ package main
import (
"context"
"errors"
"flag"
"fmt"
"sort"
@@ -37,29 +36,17 @@ func tiersOf(set []string, edges []inventory.Edge) [][]string {
for _, m := range set {
deps[m] = map[string]bool{}
}
// The build seat's holders follow the controller that defines their worker (EdgeWorkerOf,
// novox/hq issue 206), so the built-by edge from that controller to such a holder yields: the
// controller is built by whichever build machine is running, as the runtime image always was.
worker := map[string]map[string]bool{}
for _, e := range edges {
if e.Kind == inventory.EdgeWorkerOf && in[e.From] && in[e.To] {
if worker[e.To] == nil {
worker[e.To] = map[string]bool{}
}
worker[e.To][e.From] = true
}
}
for _, e := range edges {
// A code dependency — B packages A's source — rebuilds B with A, in the same tier: B's
// build needs nothing of A's first. The other kinds order: stands-on and declared after
// the base is built, built-by after the build machine is built and running — except for
// what the build machine itself stands on, and for the controller whose worker the build
// machine binds. The runtime image is built by the builder and the builder is built on the
// runtime image; the image comes first, built by the builder that is running.
// what the build machine itself stands on. The runtime image is built by the builder and
// the builder is built on the runtime image; the image comes first, built by the builder
// that is running, which is the only one there could be.
if !in[e.From] || !in[e.To] || e.From == e.To || e.Kind == inventory.EdgePackages {
continue
}
if e.Kind == inventory.EdgeBuiltBy && (isBaseOf(e.From, e.To, edges, in) || worker[e.From][e.To]) {
if e.Kind == inventory.EdgeBuiltBy && isBaseOf(e.From, e.To, edges, in) {
continue
}
deps[e.From][e.To] = true
@@ -135,10 +122,7 @@ func reachableFrom(moved []string, edges []inventory.Edge) []string {
for grew := true; grew; {
grew = false
for _, e := range edges {
// Built-by and worker-of order a plan; neither widens it. A new build machine changes
// nothing it builds, and a new controller changes nothing about the holder it orders —
// what packages the controller's source is already a code edge.
if e.Kind == inventory.EdgeBuiltBy || e.Kind == inventory.EdgeWorkerOf {
if e.Kind == inventory.EdgeBuiltBy {
continue
}
if in[e.To] && !in[e.From] {
@@ -273,8 +257,7 @@ func askTier(ctx context.Context, inv *inventory.Inventory, p *inventory.Plan) e
}
source := buildSource{Repository: e.Source.Repository, Seat: e.Source.Seat}
fmt.Printf(" tier %d: ", p.Tier)
// The branch it follows, never a commit a build once named (novox/hq 04-ISSUES/215).
if err := buildOne(ctx, source, e.Source.Path, followedBranch(e.Source.Ref), 0); err != nil {
if err := buildOne(ctx, source, e.Source.Path, e.Source.Ref, 0); err != nil {
state.State = "failed"
state.Why = err.Error()
p.State = inventory.PlanFailed
@@ -289,23 +272,8 @@ func askTier(ctx context.Context, inv *inventory.Inventory, p *inventory.Plan) e
// planBuilt marks a module built (or failed) in every open plan whose current tier holds it, and
// advances what that completes. Called from the daemon's take-in of every outcome.
//
// **Only a build asked at or after the plan's ask is its outcome** (novox/hq 04-ISSUES/219). Two
// plans a few minutes apart both ask for a module; the earlier plan's build, finishing late, is not
// the later plan's answer — it stood on the bases from before the later plan's merge, and taking it
// would send machines, and the next tier, what the later merge replaced. asked is zero when the
// build's request time is not known, and such an outcome is taken as before.
func planBuilt(ctx context.Context, open *stores, module, commit, failed string, asked time.Time) {
func planBuilt(ctx context.Context, open *stores, module, commit, failed string) {
inv := open.inventory
// One controller works the plans at a time (novox/hq issue 213); an outcome waits its turn rather
// than write over what the holder is about to save. Not taken, it is still in the build records,
// which the holder settles the plan from (issue 214).
release, err := inv.HoldPlans(ctx, true)
if err != nil {
fmt.Printf("plans: %s's outcome is left to the build records: %v\n", module, err)
return
}
defer release()
plans, err := inv.OpenPlans(ctx)
if err != nil {
fmt.Printf("plans: cannot read them: %v\n", err)
@@ -331,9 +299,6 @@ func planBuilt(ctx context.Context, open *stores, module, commit, failed string,
state = &inventory.PlanModule{}
p.Modules[module] = state
}
if askedBefore(asked, state.AskedAt) {
continue
}
if failed != "" {
state.State = "failed"
state.Why = failed
@@ -352,30 +317,13 @@ func planBuilt(ctx context.Context, open *stores, module, commit, failed string,
fmt.Printf("%s: %s; the tiers after it are not asked\n", p.ID, p.Note)
}
}
advanceHeld(ctx, open)
advancePlans(ctx, open)
}
// advancePlans moves every open plan as far as the facts allow: a tier whose modules are all built
// and whose gates are applied gives way to the next; the last tier done is the plan done. Called
// after every outcome and on a timer, so a plan waiting on a machine's report moves when it comes.
//
// **One controller at a time** (novox/hq issue 213). A plan is read, changed and saved whole; two
// controllers — the old and the new while a machine hands its controller over — would each ask a
// tier the other had just asked. Taken without waiting: whoever holds the plans is moving them.
func advancePlans(ctx context.Context, open *stores) {
release, err := open.inventory.HoldPlans(ctx, false)
if err != nil {
if !errors.Is(err, inventory.ErrPlansBusy) {
fmt.Printf("plans: cannot hold them: %v\n", err)
}
return
}
defer release()
advanceHeld(ctx, open)
}
// advanceHeld is advancePlans for a caller already holding the plans.
func advanceHeld(ctx context.Context, open *stores) {
inv := open.inventory
plans, err := inv.OpenPlans(ctx)
if err != nil {
@@ -436,24 +384,6 @@ func advanceOnce(ctx context.Context, open *stores, p *inventory.Plan,
}
return true, nil
}
// **Asked: settle from the build records first** (novox/hq 04-ISSUES/214). An outcome is taken
// in by whichever controller hears it, and a merge to the controller's own repository replaces
// the controller in its first tier: the build that produced the new one is recorded, and the
// plan never hears it. The record is the fact; a build recorded after the ask is that tier's
// outcome, whoever was listening.
recorded := map[string][]inventory.Build{}
for _, m := range tier {
if s := p.Modules[m]; s != nil && s.State == "asked" {
builds, err := inv.Builds(ctx, m, 5)
if err != nil {
return false, err
}
recorded[m] = builds
}
}
if settleFromRecords(p, tier, recorded) {
return true, nil
}
// Asked: wait for every build.
var latest time.Time
for _, m := range tier {
@@ -585,8 +515,7 @@ func planFailedBuild(ctx context.Context, open *stores, result link.BuildResult)
}
for _, e := range entries {
if repositoryMatches(e.Source.Repository, result.Repository) && e.Source.Path == result.Path {
asked, _ := link.BuildAskedAt(result.ID)
planBuilt(ctx, open, e.Manifest.Module, result.Commit, result.Failed, asked)
planBuilt(ctx, open, e.Manifest.Module, result.Commit, result.Failed)
return
}
}
@@ -703,19 +632,6 @@ func plansCommand(ctx context.Context, args []string) error {
}
p.State = inventory.PlanFailed
p.Note = "stopped by hand at tier " + fmt.Sprint(p.Tier)
release, err := inv.HoldPlans(ctx, true)
if err != nil {
return err
}
defer release()
if p, err = inv.PlanByID(ctx, positionals[1]); err != nil {
return err
}
if !p.Open() {
return fmt.Errorf("%s is already %s", p.ID, p.State)
}
p.State = inventory.PlanFailed
p.Note = "stopped by hand at tier " + fmt.Sprint(p.Tier)
if err := inv.SavePlan(ctx, p); err != nil {
return err
}
@@ -824,52 +740,3 @@ func splitList(s string) []string {
}
return out
}
// settleFromRecords marks every module of the tier still `asked` built — or failed — from a build
// recorded after it was asked, and says whether it changed anything (novox/hq 04-ISSUES/214).
// Newest first, as Builds answers: the first record after the ask is the outcome of that ask.
func settleFromRecords(p *inventory.Plan, tier []string, recorded map[string][]inventory.Build) bool {
changed := false
for _, m := range tier {
s := p.Modules[m]
if s == nil || s.State != "asked" || s.AskedAt == nil {
continue
}
var outcome *inventory.Build
for i := range recorded[m] {
b := recorded[m][i]
if b.At.Before(*s.AskedAt) {
break
}
// Recorded after the ask and asked before it: an earlier ask's late outcome, not this
// one's (novox/hq 04-ISSUES/219).
if askedBefore(b.Asked, s.AskedAt) {
continue
}
outcome = &b
}
if outcome == nil {
continue
}
at := outcome.At
if outcome.Worked() {
s.State = "built"
s.BuiltAt = &at
s.Commit = outcome.Commit
} else {
s.State = "failed"
s.Why = outcome.Failed
p.State = inventory.PlanFailed
p.Note = fmt.Sprintf("%s failed to build in tier %d", m, p.Tier)
}
fmt.Printf("%s: %s settled from the build records as %s (%s)\n", p.ID, m, s.State, outcome.ID)
changed = true
}
return changed
}
// askedBefore is whether a build asked at asked was asked before a plan asked for its module — and
// so is not that plan's outcome (novox/hq 04-ISSUES/219). False when either time is not known.
func askedBefore(asked time.Time, planAsked *time.Time) bool {
return !asked.IsZero() && planAsked != nil && asked.Before(*planAsked)
}
-66
View File
@@ -115,69 +115,3 @@ func TestACycleIsOneLastTierAndSaidSo(t *testing.T) {
t.Fatalf("a cycle should be one tier of two, said: %v", tiers)
}
}
// novox/hq 04-ISSUES/211: a merge moving the toolchain and a bundle compiled in it builds the
// bundle a tier after the toolchain, not beside it.
func TestABundleIsPlannedAfterTheToolchainItIsCompiledIn(t *testing.T) {
edges := []inventory.Edge{{From: "node-tools", To: "mesh-tools", Kind: inventory.EdgeStandsOn}}
p := planOfMerge(link.SourceMoved{Owner: "novox", Repo: "mesh-tools", Commit: "abc"},
[]string{"mesh-tools", "node-tools"}, edges)
if len(p.Tiers) != 2 || p.Tiers[0][0] != "mesh-tools" || p.Tiers[1][0] != "node-tools" {
t.Fatalf("the toolchain, then the bundle: %v", p.Tiers)
}
}
// novox/hq 04-ISSUES/214: a plan whose build outcome was recorded while no controller followed it —
// the controller rebuilding itself — settles from the build records instead of waiting for ever.
func TestAPlanSettlesAnAskedBuildFromTheRecords(t *testing.T) {
asked := time.Date(2026, 10, 3, 19, 20, 0, 0, time.UTC)
p := inventory.Plan{ID: "plan-1", Tiers: [][]string{{"mesh-controller", "builder"}, {"route-proxy"}},
Modules: map[string]*inventory.PlanModule{
"mesh-controller": {State: "asked", AskedAt: &asked},
"builder": {State: "asked", AskedAt: &asked},
}}
records := map[string][]inventory.Build{
// Newest first, as Builds answers: the build after the ask is the outcome.
"mesh-controller": {
{ID: "build-2", Commit: "2ebbb799", At: asked.Add(4 * time.Minute)},
{ID: "build-1", Commit: "06ea2168", At: asked.Add(-10 * time.Minute)},
},
// Only a build from before the ask: not this ask's outcome.
"builder": {{ID: "build-0", Commit: "06ea2168", At: asked.Add(-time.Hour)}},
}
if !settleFromRecords(&p, p.Tiers[0], records) {
t.Fatal("nothing settled, though the controller's build is recorded after the ask")
}
if s := p.Modules["mesh-controller"]; s.State != "built" || s.Commit != "2ebbb799" || s.BuiltAt == nil {
t.Errorf("the controller's ask is %+v, want built from 2ebbb799", s)
}
if s := p.Modules["builder"]; s.State != "asked" {
t.Errorf("an ask with no record after it was settled: %+v", s)
}
// novox/hq 04-ISSUES/219: a build recorded after the ask but asked before it — an earlier
// plan's late outcome — is not this ask's, built or failed.
r := inventory.Plan{ID: "plan-3", Tiers: [][]string{{"postgres"}},
Modules: map[string]*inventory.PlanModule{"postgres": {State: "asked", AskedAt: &asked}}}
late := map[string][]inventory.Build{"postgres": {
{ID: "build-old", Commit: "efff5415", Asked: asked.Add(-18 * time.Minute), At: asked.Add(12 * time.Minute)},
}}
if settleFromRecords(&r, r.Tiers[0], late) || r.Modules["postgres"].State != "asked" {
t.Errorf("an earlier ask's late outcome settled this ask: %+v", r.Modules["postgres"])
}
// Newest heard first: the earlier ask's late outcome, then this ask's own, heard before it.
late["postgres"] = append(late["postgres"], inventory.Build{ID: "build-mine", Commit: "4bcd5f73",
Asked: asked.Add(time.Second), At: asked.Add(5 * time.Minute)})
if !settleFromRecords(&r, r.Tiers[0], late) || r.Modules["postgres"].State != "built" ||
r.Modules["postgres"].Commit != "4bcd5f73" {
t.Errorf("this ask's own outcome, heard before the earlier ask's, did not settle it: %+v", r.Modules["postgres"])
}
// A failure recorded after the ask fails the plan, as hearing it would have.
q := inventory.Plan{ID: "plan-2", Tiers: [][]string{{"x"}},
Modules: map[string]*inventory.PlanModule{"x": {State: "asked", AskedAt: &asked}}}
settleFromRecords(&q, q.Tiers[0], map[string][]inventory.Build{"x": {{ID: "b", Failed: "no", At: asked.Add(time.Minute)}}})
if q.State != inventory.PlanFailed || q.Modules["x"].State != "failed" {
t.Errorf("a recorded failure did not fail the plan: %+v %+v", q, q.Modules["x"])
}
}
+2 -4
View File
@@ -346,9 +346,7 @@ func rolloutMint(ctx context.Context, again bool) error {
}
machines++
case broker.KindModule, broker.KindNodeTools:
// The runtime is minted and delivered exactly as a module is (novox/hq ADR 0175): it is
// issued as the module it stands for, to that module's `broker` secret.
case broker.KindModule:
if p.Module == "mesh-controller" {
// The control plane is a module too, and its `broker` secret is the old bus's
// credential it is still using while this runs. Writing the new bus's blob there
@@ -367,7 +365,7 @@ func rolloutMint(ctx context.Context, again bool) error {
skipped++
continue
}
password, err := inv.MintBusPassword(ctx, inventory.BusUser{Username: p.Username(), Kind: busKindOf(p.Module), Node: p.Node, Module: p.Module})
password, err := inv.MintBusPassword(ctx, inventory.BusUser{Username: p.Username(), Kind: inventory.BusModule, Node: p.Node, Module: p.Module})
if err != nil {
return err
}
+54 -1
View File
@@ -2,12 +2,13 @@ package main
import (
"context"
"strings"
"testing"
)
// A node's own set failing to compose, and the mesh being unable to answer at all, are different
// things, and only the first may be passed over when something is gathered across every machine
// (novox/hq 04-ISSUES/152). These pin that distinction where the gatherers rely on it.
// (novox/hq 04-ISSUES/152). These pin that distinction where the three gatherers rely on it.
func TestASetThatDoesNotComposeIsMarkedAsTheNodesOwnProblem(t *testing.T) {
open := aMesh(t)
@@ -44,3 +45,55 @@ func TestAStoreThatCannotBeReadIsNotANodeThatDoesNotCompose(t *testing.T) {
t.Fatalf("a question the mesh could not answer was read as a node that runs nothing: %v", err)
}
}
func TestOneIncoherentNodeDoesNotCostTheRestTheirNames(t *testing.T) {
open := aMesh(t)
one, two := rivals()
register(t, open, one)
register(t, open, two)
for _, m := range []string{one.Module, two.Module} {
if _, err := open.inventory.Assign(t.Context(), "laptop", m); err != nil {
t.Fatal(err)
}
}
// laptop cannot compose. That is laptop's problem and nobody else's: the roster is still
// answerable, and anchor keeps whatever it serves.
if _, err := routeNamesInTheMesh(t.Context(), open); err != nil {
t.Fatalf("one node's broken set cost the whole mesh its roster: %v", err)
}
}
func TestARosterIsNeverReturnedWithNamesItCouldNotRead(t *testing.T) {
open := aMesh(t)
stopped, cancel := context.WithCancel(t.Context())
cancel()
names, err := routeNamesInTheMesh(stopped, open)
if err == nil {
t.Fatalf("a roster was composed from a store that could not be read: %v", names)
}
// The failure must be raised, not turned into an absence. A roster missing a machine's names
// is indistinguishable, on every machine that receives it, from the operator withdrawing them —
// and because the roster is part of every container's identity, it replaces all of them.
if names != nil {
t.Fatalf("a partial roster was returned beside the error: %v", names)
}
}
// Kept so the reason survives the next person reading it: the message the gatherer raises must say
// which machine could not be read, or the operator is left with a mesh-wide failure and no name.
func TestTheRaisedFailureNamesTheMachineItCouldNotRead(t *testing.T) {
open := aMesh(t)
stopped, cancel := context.WithCancel(t.Context())
cancel()
_, err := routeNamesInTheMesh(stopped, open)
if err == nil {
t.Fatal("no failure was raised")
}
if !strings.Contains(err.Error(), "cannot be read") {
t.Fatalf("the failure does not say the mesh could not be read: %v", err)
}
}
@@ -1,149 +0,0 @@
package main
import (
"encoding/json"
"strings"
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
)
// Defends novox/hq ADR 0207 at the controller's acts: `assign` refuses a module whose resources a
// seat nothing on the node holds applies, `unassign` refuses taking the last holder from under its
// dependents, and `status` reports what composition does not yet refuse.
func serviceManagerHolder() catalogue.Manifest {
return catalogue.Manifest{Module: "systemd", Version: "1",
Claims: []catalogue.Claim{{Name: catalogue.ServiceManagerSeat, Scope: catalogue.ScopeNode,
Serves: []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal"}}},
Resources: []map[string]any{{"id": "systemd", "type": "package", "package": "systemd"}}}
}
func packageManagerHolder() catalogue.Manifest {
return catalogue.Manifest{Module: "pacman", Version: "1",
Claims: []catalogue.Claim{{Name: catalogue.PackageManagerSeat, Scope: catalogue.ScopeNode}},
Resources: []map[string]any{{"id": "refresh", "type": "service", "unit": "pacman-refresh.timer"}}}
}
func aDaemon() catalogue.Manifest {
return catalogue.Manifest{Module: "sshd", Version: "1",
Resources: []map[string]any{{"id": "sshd", "type": "service", "unit": "sshd.service"}}}
}
func TestAnAssignmentWithoutItsHolderIsRefusedAndNotKept(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
register(t, open, serviceManagerHolder())
register(t, open, packageManagerHolder())
register(t, open, aDaemon())
_, err := assign(ctx, open, "laptop", "sshd")
if err == nil {
t.Fatal("sshd went onto a machine nothing holds the service manager of")
}
for _, want := range []string{catalogue.ServiceManagerSeat, "systemd", "ADR 0207"} {
if !strings.Contains(err.Error(), want) {
t.Errorf("the refusal does not say %q:\n%v", want, err)
}
}
assigned, err := open.inventory.Assigned(ctx, "laptop")
if err != nil {
t.Fatal(err)
}
if contains(assigned, "sshd") {
t.Fatalf("a refused assignment was kept: %v", assigned)
}
// The holders depend on each other, so neither goes on alone — and both go on in one act.
if _, err := assign(ctx, open, "laptop", "systemd"); err == nil {
t.Fatal("systemd went on alone though its package needs a package manager")
}
if said, err := assign(ctx, open, "laptop", "systemd", "pacman"); err != nil {
t.Fatalf("the two holders assigned together were refused: %v\n%s", err, said)
}
if said, err := assign(ctx, open, "laptop", "sshd"); err != nil {
t.Fatalf("sshd beside its holder was refused: %v\n%s", err, said)
}
}
func TestTheControllerSeatsAssignTakesSeveralModulesAsOneAct(t *testing.T) {
argv, err := argvFor("assign", map[string]any{"node": "laptop", "module": "systemd, pacman"})
if err != nil {
t.Fatal(err)
}
if strings.Join(argv, " ") != "assign laptop systemd pacman" {
t.Errorf("the seat's assign became %v", argv)
}
}
func TestUnassigningTheLastHolderUnderItsDependentsIsRefused(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
register(t, open, serviceManagerHolder())
register(t, open, packageManagerHolder())
register(t, open, aDaemon())
if _, err := assign(ctx, open, "laptop", "systemd", "pacman", "sshd"); err != nil {
t.Fatal(err)
}
_, err := unassign(ctx, open, "laptop", "systemd")
if err == nil {
t.Fatal("the service manager came off a machine still running services")
}
for _, want := range []string{catalogue.ServiceManagerSeat, "sshd", "pacman"} {
if !strings.Contains(err.Error(), want) {
t.Errorf("the refusal does not name %q:\n%v", want, err)
}
}
assigned, _ := open.inventory.Assigned(ctx, "laptop")
if !contains(assigned, "systemd") {
t.Fatalf("a refused unassignment took the module off anyway: %v", assigned)
}
if _, err := unassign(ctx, open, "laptop", "sshd"); err != nil {
t.Fatalf("a dependent could not come off: %v", err)
}
}
func TestStatusReportsAnUnheldDependencyWithoutRefusingTheMachine(t *testing.T) {
// The mesh as it ran before the switch (novox/hq ADR 0207 §4).
defer catalogue.EnforcingSeatDependencies(false)()
open := aMesh(t)
ctx := t.Context()
register(t, open, serviceManagerHolder())
register(t, open, aDaemon())
// Assigned straight into the store: a machine whose modules predate the rule, which is every
// machine on the day it ships.
if _, err := open.inventory.Assign(ctx, "laptop", "sshd"); err != nil {
t.Fatal(err)
}
asked, err := theThreeQuestions(ctx, open)
if err != nil {
t.Fatal(err)
}
if _, refused := asked.refused["laptop"]; refused {
t.Fatalf("an unmet dependency refused the machine before the switch: %s", asked.refused["laptop"])
}
if asked.well() {
t.Error("a mesh with an unheld dependency reads as all well")
}
got := printed(t, func() error { return printStatus(asked) })
for _, want := range []string{"unheld", "laptop", "sshd", catalogue.ServiceManagerSeat, "systemd"} {
if !strings.Contains(got, want) {
t.Errorf("status does not say %q:\n%s", want, got)
}
}
body, err := statusAsJSON(asked)
if err != nil {
t.Fatal(err)
}
var doc struct {
Unheld []catalogue.Unheld `json:"unheld"`
}
if err := json.Unmarshal(body, &doc); err != nil {
t.Fatal(err)
}
if len(doc.Unheld) != 1 || doc.Unheld[0].Module != "sshd" || doc.Unheld[0].Seat != catalogue.ServiceManagerSeat {
t.Errorf("the document's unheld is %+v", doc.Unheld)
}
}
+3 -50
View File
@@ -6,10 +6,8 @@ import (
"encoding/json"
"errors"
"fmt"
"github.com/nats-io/nats.go/micro"
"os"
"os/exec"
"sort"
"strings"
"github.com/novox/mesh-controller/internal/catalogue"
@@ -68,14 +66,14 @@ func argvFor(verb string, args map[string]any) ([]string, error) {
case "status":
return []string{"status", "--json"}, nil
case "nodes":
return []string{"node", "list", "--json"}, nil
return []string{"node", "list"}, nil
case "node":
if err := need("node"); err != nil {
return nil, err
}
return []string{"node", "show", str("node")}, nil
case "modules":
return []string{"module", "list", "--json"}, nil
return []string{"module", "list"}, nil
case "seats":
return []string{"seats", "--json"}, nil
case "builds":
@@ -113,9 +111,7 @@ func argvFor(verb string, args map[string]any) ([]string, error) {
if err := need("node", "module"); err != nil {
return nil, err
}
// Several modules comma-separated, judged as one act (novox/hq ADR 0207): the holders of
// the seats that apply resources depend on each other and go on together.
return append([]string{verb, str("node")}, splitModules(str("module"))...), nil
return []string{verb, str("node"), str("module")}, nil
case "pin":
if err := need("node", "provision", "from", "module"); err != nil {
return nil, err
@@ -383,46 +379,3 @@ func splitCommandLine(line string) ([]string, error) {
}
return words, nil
}
// seatAnnouncement is what the controller says it serves on the bus (novox/hq ADR 0197): the
// mesh-controller seat, one endpoint per verb it answers, each with the seat's own description and
// argument schema — the same facts `tools` answers from the records, as NATS's services format.
func seatAnnouncement(handlers map[string]link.ToolHandler) micro.Info {
about := map[string]catalogue.Verb{}
for _, s := range catalogue.SeatsWithAProtocol() {
if s.Name == catalogue.ControllerSeatName {
for _, v := range s.Serves {
about[v.Name] = v
}
}
}
verbs := make([]string, 0, len(handlers))
for verb := range handlers {
verbs = append(verbs, verb)
}
sort.Strings(verbs)
var endpoints []micro.EndpointInfo
for _, verb := range verbs {
schema, _ := json.Marshal(about[verb].Input)
// The same shape every tool runtime announces in (node-tools' announce package): the name is
// `<seat>__<verb>`, as the protocol's characters allow; the metadata is what identifies it.
endpoints = append(endpoints, micro.EndpointInfo{
Name: catalogue.ControllerSeatName + "__" + verb,
Subject: link.SeatToolSubject(catalogue.ControllerSeatName, verb),
QueueGroup: "seat." + catalogue.ControllerSeatName,
Metadata: map[string]string{
"kind": "seat", "module": catalogue.ControllerSeatName, "tool": verb,
"seat": catalogue.ControllerSeatName, "scope": "mesh", "interchangeable": "false",
"description": about[verb].Description, "schema": string(schema),
},
})
}
return micro.Info{
ServiceIdentity: micro.ServiceIdentity{
Name: catalogue.ControllerSeatName, ID: "controller", Version: "0.1.0",
Metadata: map[string]string{"seat": catalogue.ControllerSeatName, "scope": "mesh"},
},
Description: "the mesh's own verbs, answered by the holder of the mesh-controller seat",
Endpoints: endpoints,
}
}
-47
View File
@@ -2,8 +2,6 @@ package main
import (
"context"
"fmt"
"github.com/novox/mesh-controller/internal/link"
"strings"
"testing"
@@ -251,48 +249,3 @@ func TestARowAheadOfThisBuildIsServedAnyway(t *testing.T) {
}
}
}
// novox/hq ADR 0195: the console's discovery reads the machines and the modules; they answer as JSON,
// as status and seats do, so nothing parses a printed column.
func TestTheNodesAndModulesVerbsAnswerAsJSON(t *testing.T) {
for verb, want := range map[string]string{"nodes": "[node list --json]", "modules": "[module list --json]"} {
argv, err := argvFor(verb, map[string]any{})
if err != nil {
t.Fatal(err)
}
if fmt.Sprint(argv) != want {
t.Errorf("%s runs %v, want %s", verb, argv, want)
}
}
}
// novox/hq ADR 0197: the controller announces exactly the verbs it serves, each on the subject and
// queue it serves it on, with the seat's own description and schema, in NATS's services format.
func TestTheControllerAnnouncesTheVerbsItServes(t *testing.T) {
handlers, _, err := seatToolHandlers()
if err != nil {
t.Fatal(err)
}
info := seatAnnouncement(handlers)
if info.Name != catalogue.ControllerSeatName || info.ID == "" || info.Version == "" {
t.Fatalf("the service is not named for the seat: %+v", info.ServiceIdentity)
}
if len(info.Endpoints) != len(handlers) {
t.Fatalf("%d endpoints announced for %d verbs served", len(info.Endpoints), len(handlers))
}
for _, e := range info.Endpoints {
verb := e.Metadata["tool"]
if _, served := handlers[verb]; !served || e.Name != catalogue.ControllerSeatName+"__"+verb {
t.Errorf("%s (%s) is announced and not served under that name", e.Name, verb)
}
if e.Metadata["kind"] != "seat" || e.Metadata["seat"] != catalogue.ControllerSeatName {
t.Errorf("%s is not announced as the seat's verb: %v", e.Name, e.Metadata)
}
if e.Subject != link.SeatToolSubject(catalogue.ControllerSeatName, verb) || e.QueueGroup != "seat."+catalogue.ControllerSeatName {
t.Errorf("%s is announced on %s/%s, not where it is served", e.Name, e.Subject, e.QueueGroup)
}
if e.Metadata["description"] == "" || e.Metadata["schema"] == "" || e.Metadata["scope"] != "mesh" {
t.Errorf("%s is announced without its description, schema or scope: %v", e.Name, e.Metadata)
}
}
}
+1 -31
View File
@@ -282,22 +282,6 @@ func printStatus(asked answers) error {
fmt.Printf("\n `take <node> <module>` compares what runs against what it declares, and runs it\n\n")
}
if len(asked.unheld) > 0 {
// **Reported, and not refused yet** (novox/hq ADR 0207 §4). Each machine still resolves and
// is sent what it would be; this says which of its modules depend on a seat nothing there
// holds, until every machine has its holders and the switch makes it a refusal.
fmt.Printf("%d module dependenc(ies) on a seat nothing on the machine holds (unheld, ADR 0207):\n",
len(asked.unheld))
for _, u := range asked.unheld {
holders := "no module in the catalogue claims it yet"
if len(u.Holders) > 0 {
holders = "could be held by " + strings.Join(u.Holders, ", ")
}
fmt.Printf(" %-12s %-24s %-24s %s\n", u.Node, u.Module, u.Seat, holders)
}
fmt.Printf("\n `assign <node> <holder>` meets it; reported until every machine has its holders, then refused\n\n")
}
if adopted := adoptedNodes(nodes); len(adopted) > 0 {
// Said, because nothing forces the flip: a node left adopted is visible here rather than
// read as converged (novox/hq ADR 0100). Not a fault, so it does not break "all well".
@@ -402,20 +386,6 @@ func theThreeQuestions(ctx context.Context, open *stores) (answers, error) {
if err != nil {
return answers{}, err
}
// And which machines run a module whose resources a seat nothing there holds applies (novox/hq
// ADR 0207). Each machine resolved again rather than threaded through whoResolves, whose answer
// the private network is built from and should say nothing else; a machine that does not
// resolve is already in refused, and is passed over here.
for _, n := range out.nodes {
plan, _, err := planFor(ctx, open, n.Name)
if err != nil {
if unresolvable(err) {
continue
}
return answers{}, err
}
out.unheld = append(out.unheld, plan.Unheld...)
}
out.plans, err = inv.RecentPlans(ctx, 5)
if err != nil {
return answers{}, err
@@ -526,7 +496,7 @@ func untakenModules(ctx context.Context, inv *inventory.Inventory, nodes []inven
func (a answers) well() bool {
return len(a.wrong) == 0 && len(a.quiet) == 0 && len(a.behind) == 0 &&
len(a.waiting) == 0 && len(a.refused) == 0 && a.network == "" && len(a.untaken) == 0 &&
len(a.filtered) == 0 && len(a.unheld) == 0
len(a.filtered) == 0
}
// hostSplit is which machines report which host version, for every version more than one machine
-108
View File
@@ -1,108 +0,0 @@
package main
import (
"bytes"
"os"
"strings"
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
)
// An act says what it changed about the node it acted on, and nothing about the rest of the mesh
// (novox/hq ADR 0207): after the seat dependencies shipped, every `push <node>` and `assign` printed
// every node's unmet dependencies, a hundred lines around the one about the module just assigned.
func aContainer(name string) catalogue.Manifest {
return catalogue.Manifest{Module: name, Version: "1",
Resources: []map[string]any{{"id": name, "type": "container", "image": name}}}
}
func TestAnAssignmentSaysOnlyWhatItChangedOnItsOwnNode(t *testing.T) {
open := aMesh(t)
ctx := t.Context()
register(t, open, aContainer("web"))
register(t, open, aContainer("db"))
// anchor already lacks a runtime for db: true, and not this act's to say.
if _, err := open.inventory.Assign(ctx, "anchor", "db"); err != nil {
t.Fatal(err)
}
if _, err := open.inventory.Assign(ctx, "laptop", "db"); err != nil {
t.Fatal(err)
}
said, err := assign(ctx, open, "laptop", "web")
if err != nil {
t.Fatalf("%v\n%s", err, said)
}
if !strings.Contains(said, "web on laptop depends on "+catalogue.ContainerRuntimeSeat) {
t.Errorf("the assignment does not say what the module it assigned depends on:\n%s", said)
}
for _, not := range []string{"db on laptop", "db on anchor", "anchor:"} {
if strings.Contains(said, not) {
t.Errorf("the assignment says %q, which it did not change:\n%s", not, said)
}
}
}
func TestAnAssignmentThatMeetsADependencySaysSo(t *testing.T) {
shelf := map[string]catalogue.Manifest{
"web": aContainer("web"),
"docker": {Module: "docker", Claims: []catalogue.Claim{{Name: catalogue.ContainerRuntimeSeat}},
Resources: []map[string]any{{"id": "d", "type": "container", "image": "dind"}}},
}
lines := unheldChange(shelf, "laptop", []string{"web"}, []string{"web", "docker"})
if len(lines) != 1 || !strings.Contains(lines[0], "web on laptop now has "+catalogue.ContainerRuntimeSeat+" held") {
t.Errorf("meeting a dependency said %v", lines)
}
// Taking the dependent off says nothing: the dependency went with its module.
if lines := unheldChange(shelf, "laptop", []string{"web"}, nil); len(lines) != 0 {
t.Errorf("unassigning the dependent said %v", lines)
}
}
func TestAPushSaysANamedNodesDependenciesAndCountsTheRest(t *testing.T) {
unheld := map[string][]catalogue.Unheld{
"anchor": {{Node: "anchor", Module: "db", Seat: catalogue.ContainerRuntimeSeat}},
"laptop": {{Node: "laptop", Module: "web", Seat: catalogue.ContainerRuntimeSeat},
{Node: "laptop", Module: "sshd", Seat: catalogue.ServiceManagerSeat}},
}
var named bytes.Buffer
reportUnheldPushed(&named, true, []string{"laptop"}, unheld)
got := named.String()
if !strings.Contains(got, "laptop has 2 unmet") || !strings.Contains(got, "web on laptop") ||
!strings.Contains(got, "sshd on laptop") || strings.Contains(got, "anchor") {
t.Errorf("a named push said:\n%s", got)
}
var all bytes.Buffer
reportUnheldPushed(&all, false, []string{"anchor", "laptop", "quiet"}, unheld)
want := "anchor: 1 unmet seat dependenc(ies) — see `status`\nlaptop: 2 unmet seat dependenc(ies) — see `status`\n"
if all.String() != want {
t.Errorf("a push to every node said:\n%s\nwant\n%s", all.String(), want)
}
}
func TestOnlyTheServingControllerLogsEachChange(t *testing.T) {
read := func(f func()) string {
old := os.Stderr
r, w, _ := os.Pipe()
os.Stderr = w
f()
_ = w.Close()
os.Stderr = old
var b bytes.Buffer
_, _ = b.ReadFrom(r)
return b.String()
}
u := []catalogue.Unheld{{Node: "n1", Module: "web", Seat: catalogue.ContainerRuntimeSeat}}
if got := read(func() { logUnheld("n1", u) }); got != "" {
t.Errorf("a command logged:\n%s", got)
}
logUnheldChanges = true
defer func() { logUnheldChanges = false }()
if got := read(func() { logUnheld("n1", u) }); !strings.Contains(got, "web on n1") {
t.Errorf("the serving controller did not log a change:\n%s", got)
}
if got := read(func() { logUnheld("n1", u) }); got != "" {
t.Errorf("an unchanged report was logged again:\n%s", got)
}
}
+1 -34
View File
@@ -5,7 +5,6 @@ import (
"errors"
"flag"
"fmt"
"regexp"
"strings"
"time"
@@ -284,14 +283,6 @@ func (f following) SourceMoved(ctx context.Context, m link.SourceMoved) error {
if isHistory(m.MergedAt, lastLookAt(entries, m)) {
packaging = nil
}
// Said, never silent (novox/hq 04-ISSUES/215): a module built from this repository that follows
// another branch is not part of this merge, and whoever is waiting for its change should read why.
for _, e := range entries {
if sameRepository(e.Source.Repository, m) && !sourceIs(e.Source, m) {
fmt.Printf(" %s is built from %s/%s and follows %s, not %s; this merge leaves it out\n",
e.Manifest.Module, m.Owner, m.Repo, e.Source.Ref, m.Base)
}
}
touched := whatTheMergeTouched(from, entries, m)
for _, e := range touched {
if err := inv.SourceMoved(ctx, e.Manifest.Module, m.Commit); err != nil {
@@ -315,13 +306,6 @@ func (f following) SourceMoved(ctx context.Context, m link.SourceMoved) error {
for _, e := range moved {
movedNames = append(movedNames, e.Manifest.Module)
}
// Written and its first tier asked as one act on the plans (novox/hq issue 213): a timer on
// another controller reading it between the two would ask the tier again.
release, err := inv.HoldPlans(ctx, true)
if err != nil {
return notNow(err)
}
defer release()
plan := planOfMerge(m, movedNames, edges)
if hasCycle(plan.Tiers, edges) {
fmt.Printf(" the last tier depends on itself: %s — built together, in no order\n",
@@ -361,24 +345,7 @@ func sourceIs(s inventory.Source, m link.SourceMoved) bool {
if !sameRepository(s.Repository, m) {
return false
}
ref := followedBranch(s.Ref)
return ref == "" || ref == m.Base
}
// commitRef is a ref that names a commit rather than a branch: what `build --ref <commit>` asks for.
var commitRef = regexp.MustCompile(`^[0-9a-f]{7,40}$`)
// followedBranch is the branch a recorded ref means a module follows (novox/hq 04-ISSUES/215). **A
// commit is never a branch to follow.** A build asked at a commit — to try one, or to pin it during a
// fix — recorded that commit as the module's ref; every merge after it then failed to match the
// module, its plan left it out without saying so, and every plan that rebuilt it asked for that same
// old commit again. A commit recorded so is read as the repository's default branch, which is what
// the module followed before it; a branch is followed as named.
func followedBranch(ref string) string {
if commitRef.MatchString(strings.TrimSpace(ref)) {
return ""
}
return ref
return s.Ref == "" || s.Ref == m.Base
}
// sameRepository is whether a recorded repository is the one a merge names, in either spelling it
-45
View File
@@ -1,45 +0,0 @@
package main
import (
"testing"
"github.com/novox/mesh-controller/internal/inventory"
)
// The holder of the build seat follows the controller that defines its worker (novox/hq issue 206).
// On 2026-10-03 a plan put the build machine in tier 0 and the controller in tier 1; the new build
// machine could not bind the worker the old controller had defined, and nothing could build the
// controller that would have redefined it. The built-by edge from the controller to its build
// machine yields to that order: the controller is built by whichever build machine is running.
func TestTheBuildSeatsHolderFollowsTheControllerThatDefinesItsWorker(t *testing.T) {
edges := []inventory.Edge{
{From: "build-agent", To: "mesh-controller", Kind: inventory.EdgePackages},
{From: "build-agent", To: "mesh-controller", Kind: inventory.EdgeWorkerOf},
{From: "mesh-controller", To: "build-agent", Kind: inventory.EdgeBuiltBy},
{From: "route-proxy", To: "mesh-controller", Kind: inventory.EdgePackages},
{From: "route-proxy", To: "build-agent", Kind: inventory.EdgeBuiltBy},
}
set := reachableFrom([]string{"mesh-controller"}, edges)
if len(set) != 3 {
t.Fatalf("the controller, what packages it, and nothing more: %v", set)
}
tiers := tiersOf(set, edges)
pos := map[string]int{}
for i, tier := range tiers {
for _, m := range tier {
pos[m] = i
}
}
if pos["mesh-controller"] != 0 {
t.Fatalf("the controller first, built by the build machine that is running: %v", tiers)
}
if pos["build-agent"] <= pos["mesh-controller"] {
t.Fatalf("the build machine after the controller that defines its worker: %v", tiers)
}
if pos["route-proxy"] <= pos["build-agent"] {
t.Fatalf("what the build machine builds comes after it: %v", tiers)
}
if hasCycle(tiers, edges) {
t.Fatalf("no cycle here: %v", tiers)
}
}
-29
View File
@@ -1,29 +0,0 @@
package main
import (
"crypto/tls"
"net/http"
"net/http/httptest"
"net/url"
"testing"
)
// A backend behind the proxy learns the client used TLS and which name it asked for, so the addresses
// it writes into its own pages are the ones a client can use (2026-10-03: a forge's Go import tag
// named an http clone URL, and Go refused the module path).
func TestABackendIsToldTheRequestWasHTTPSAndForWhichName(t *testing.T) {
var proto, host, fwdHost, fwdFor string
backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
proto, host, fwdHost, fwdFor = r.Header.Get("X-Forwarded-Proto"), r.Host, r.Header.Get("X-Forwarded-Host"), r.Header.Get("X-Forwarded-For")
}))
defer backend.Close()
where, _ := url.Parse(backend.URL)
req := httptest.NewRequest(http.MethodGet, "https://git.example.org/novox/mesh-sdk/go?go-get=1", nil)
req.TLS = &tls.ConnectionState{}
req.Host = "git.example.org"
req.RemoteAddr = "192.0.2.7:51000"
towards(where).ServeHTTP(httptest.NewRecorder(), req)
if proto != "https" || fwdHost != "git.example.org" || host != "git.example.org" || fwdFor != "192.0.2.7" {
t.Errorf("the backend was told proto=%q host=%q forwarded-host=%q for=%q", proto, host, fwdHost, fwdFor)
}
}
+1 -15
View File
@@ -273,7 +273,7 @@ func (t *table) set(routes map[string][]rule, public map[string]bool) {
log.Printf("route %s points at %q, which is not a URL: %v", host, r.target, err)
continue
}
r.to = towards(where)
r.to = httputil.NewSingleHostReverseProxy(where)
if r.insecure {
r.to.Transport = &http.Transport{TLSClientConfig: &tls.Config{InsecureSkipVerify: true}}
}
@@ -1060,17 +1060,3 @@ func asPort(v any) (int, bool) {
}
return 0, false
}
// towards proxies to one backend and tells it what the client asked: **X-Forwarded-Proto, -Host and
// -For**, set from the request this proxy received. A backend that builds its own addresses — a forge
// writing its clone URL into a page, a login redirect — otherwise sees the plain HTTP hop from this
// proxy and writes `http://`, though every client reached it over TLS: Go refused the forge's module
// path for exactly that on 2026-10-03, its import tag naming an http clone URL.
// The standard library's NewSingleHostReverseProxy sets only X-Forwarded-For.
func towards(where *url.URL) *httputil.ReverseProxy {
return &httputil.ReverseProxy{Rewrite: func(pr *httputil.ProxyRequest) {
pr.SetURL(where)
pr.Out.Host = pr.In.Host
pr.SetXForwarded()
}}
}
+4 -18
View File
@@ -8,7 +8,6 @@ package artifacts
import (
"context"
"errors"
"fmt"
"net/http"
"strings"
@@ -27,15 +26,7 @@ type Store struct {
}
// Gone is the answer when the store does not hold it: the outcome wanted, already true.
var Gone = errors.New("the store does not hold it")
// ErrNotOurs is a reference this sweep will not address: not the mesh's own, or naming nothing
// the store holds by digest.
//
// **A fact about the record, not about the store** (novox/hq issue 226). The two deserve opposite
// responses — skip one and go on, abandon the sweep for the other — and collapsing them into "an
// error" is how a cautious loop became one that did nothing while reporting the right number.
var ErrNotOurs = errors.New("not a reference into the mesh's artifact store")
var Gone = fmt.Errorf("the store does not hold it")
// LetGo asks the store to drop one artifact the mesh recorded making.
//
@@ -47,17 +38,12 @@ var ErrNotOurs = errors.New("not a reference into the mesh's artifact store")
// wants the artifact absent, and it is. It is distinguished from success only so a caller can say
// which of the two happened.
func (s Store) LetGo(ctx context.Context, reference string) error {
// **Strict, and deliberately** (novox/hq issue 226). Only a reference the mesh keeps in its
// own vocabulary is addressed here. `Recorded` would read `docker.io/library/registry@sha256:…`
// as the mesh's too — it cannot tell one registry host from another — so normalising belongs
// where the provenance is known, which is the sweep reading its own build records, not here
// where the only job is to refuse anything that is not plainly ours.
path, kept := catalogue.InArtifactStore(reference)
if !kept {
// Nothing the mesh put in its own store. Refused rather than attempted: composing a
// delete for a reference of unknown shape is how a sweep reaches something that is not
// the mesh's. Distinguished from a store that refuses, so a sweep skips this and goes on.
return fmt.Errorf("%w: %s", ErrNotOurs, reference)
// the mesh's.
return fmt.Errorf("%s is not a reference into the mesh's artifact store", reference)
}
if s.Address == "" {
return fmt.Errorf("this mesh has no artifact store on its network to ask about %s", reference)
@@ -109,5 +95,5 @@ func split(path string) (repository, kind, digest string, err error) {
if before, after, ok := strings.Cut(path, "/blobs/sha256:"); ok {
return before, "blobs", "sha256:" + after, nil
}
return "", "", "", fmt.Errorf("%w: %q names nothing the store holds by digest", ErrNotOurs, path)
return "", "", "", fmt.Errorf("%q names nothing the store holds by digest", path)
}
-23
View File
@@ -92,26 +92,3 @@ func TestAReferenceThatIsNotTheMeshsOwnIsNeverAsked(t *testing.T) {
t.Fatalf("the store was asked about %v", *asked)
}
}
// A reference this sweep will not address says so as ErrNotOurs, which is a fact about the
// record and not about the store (novox/hq issue 226).
//
// The sweep skips one and abandons itself for the other, so they cannot be the same error. The
// first live run met a reference recorded with the store's old address, read the refusal as "the
// store refuses everything", and collected none of the 1681 it had found.
func TestAReferenceThisSweepWillNotAddressIsToldApartFromAStoreRefusing(t *testing.T) {
store, asked := fakeStore(t, http.StatusAccepted)
for _, reference := range []string{
"docker.io/library/registry@sha256:abc123",
"127.0.0.1:5100/mesh-tools/build@sha256:abc123",
"1.4.2",
} {
err := store.LetGo(context.Background(), reference)
if !errors.Is(err, ErrNotOurs) {
t.Errorf("%s answered %v; a sweep must be able to skip it and go on", reference, err)
}
}
if len(*asked) != 0 {
t.Fatalf("the store was asked about %v", *asked)
}
}
@@ -234,13 +234,3 @@ func admitsSubject(pattern, subject []string) bool {
}
return len(pattern) == len(subject)
}
// The two packages name the runtime module separately — the broker's types stay free of the
// catalogue's on purpose — so this is what holds them to one string. A rename that reached only one
// side would compose a runtime principal for a module nobody assigns, silently, and leave the one
// that is assigned with a module's own grants.
func TestTheBrokerAndTheCatalogueAgreeOnTheRuntimeModule(t *testing.T) {
if RuntimeModule != catalogue.RuntimeModule {
t.Fatalf("the broker calls the runtime %q and the catalogue %q", RuntimeModule, catalogue.RuntimeModule)
}
}
+15 -16
View File
@@ -144,18 +144,12 @@ func ConsumerFor(p Principal) (Consumer, bool) {
}, true
}
// HolderConsumerFor is the worker a seat's holders share on that seat's work queue.
// HolderConsumerFor is the worker a seat's holder gets on that seat's work queue.
//
// **One worker for every holder, and each holder pulls one ask when it is idle** (novox/hq ADR
// 0190). The seat is *authority* — who may be the telegram sender — and the worker is *delivery*,
// kept separate so that relaxing one changes nothing about the other: a node-scoped seat has a
// holder per machine, and all of them take from this one consumer, so the work is shared without
// any holder knowing about the others. Pulled rather than pushed because a push consumer hands the
// next ask to whichever subscriber the server picks, busy or not, and a pulled one is asked for by
// a holder that has just become free. Which is also what ends the race issue 186 describes — asks
// delivered behind the one being worked, expiring unacknowledged and dropped after the fifth
// redelivery: nothing is delivered that nobody asked for. A long build keeps its own ask alive
// (stillWorking); the ack wait is for a holder that died.
// **A queue group even though the seat guarantees one holder.** The seat is *authority* — who may
// be the telegram sender — and the queue group is *delivery*. Tie delivery to the seat and the
// day somebody allows two holders for throughput, every message is processed twice with nothing
// reporting it. Kept separate, relaxing one changes nothing about the other.
func HolderConsumerFor(node, module string, seat DeclaredSeat) (Consumer, bool) {
if len(seat.Accepts) == 0 {
return Consumer{}, false
@@ -164,13 +158,18 @@ func HolderConsumerFor(node, module string, seat DeclaredSeat) (Consumer, bool)
Name: "SEAT_" + upperSnake(seat.Name) + "_worker",
Stream: seatStreamName(seat.Name),
Filters: []string{"mesh.seat." + seat.Name + ".accept.>"},
Queue: "holders",
AckWaitSeconds: 60,
MaxDeliver: 5,
// As many in flight as there are holders working, which pulling bounds by itself: a holder
// fetches one and fetches again only after it acknowledged. The server's default stands.
Why: fmt.Sprintf("%s on %s holds %s; every holder pulls one ask at a time from this worker "+
"and acknowledges after the work is done, so a crash mid-work redelivers rather than "+
"loses and an idle holder is the one that takes the next ask", module, node, seat.Name),
// **One in flight.** A holder works one ask at a time, so the server hands it one at a
// time: with the default of many, every ask behind the one being worked was delivered,
// left unacknowledged for the length of the work, redelivered after the ack wait, and
// after the fifth time dropped — on 2026-10-01 twenty-six of forty-three builds asked in
// two minutes were never built, and the queue read as empty (novox/hq issue 186).
MaxAckPending: 1,
Why: fmt.Sprintf("%s on %s holds %s; it acknowledges after the work is done, so a "+
"crash mid-work redelivers rather than loses; one in flight, so a queue of asks is a "+
"queue and not a race against the ack wait", module, node, seat.Name),
}, true
}
+12 -25
View File
@@ -88,20 +88,15 @@ func TestAModuleThatConsumesNothingGetsNoConsumer(t *testing.T) {
}
}
// The seat is authority and the worker is delivery (novox/hq ADR 0190): one worker per seat, shared
// by every holder and pulled from, so a second holder takes the next ask rather than a copy of the
// same one — which is what a queue group used to guard, and what pulling one durable gives outright.
func TestAHoldersWorkerIsOneSharedByItsHolders(t *testing.T) {
// The seat is authority and the queue group is delivery. Tie them together and the day somebody
// allows two holders, every message is processed twice with nothing reporting it.
func TestAHoldersWorkerUsesAQueueGroupAnyway(t *testing.T) {
c, ok := HolderConsumerFor("one", "telegram", telegramSeat())
if !ok {
t.Fatal("the holder of a seat with inbound work got no worker")
}
two, _ := HolderConsumerFor("two", "telegram", telegramSeat())
if c.Name != two.Name || c.Stream != two.Stream {
t.Fatal("two holders got two workers, so each would process every ask")
}
if c.Push || c.Queue != "" {
t.Fatal("the worker is pushed, so the server would hand an ask to a busy holder")
if c.Queue == "" {
t.Fatal("the worker is not in a queue group, so a second holder would double-process")
}
if c.Stream != "SEAT_TELEGRAM_SENDER" {
t.Fatalf("the worker reads %q, not the seat's own stream", c.Stream)
@@ -159,23 +154,15 @@ func TestANodesDeclarationConsumerIsWhatItsOwnGrantAllows(t *testing.T) {
has(t, perms.Subscribe, c.Filters[0])
}
// Every holder of a seat shares one worker and pulls from it (novox/hq ADR 0190): no queue group
// and no delivery subject, because a push consumer hands the next ask to whichever subscriber the
// server picks, busy or not; and no cap of one in flight, because pulling bounds the asks in flight
// by the holders that are free — which is what ended the race of issue 186, where asks delivered
// behind the one being worked expired and were dropped.
func TestAHoldersWorkerIsPulledByEveryHolder(t *testing.T) {
c, found := HolderConsumerFor("anchor", "build-agent", DeclaredSeat{Name: "node-build-agent", Accepts: []string{"build"}})
// A holder works one ask at a time, so the server hands it one at a time (novox/hq issue 186):
// asks queued behind the one being worked wait in the stream rather than being delivered,
// left to expire and dropped after the fifth redelivery.
func TestAHoldersWorkerTakesOneAskAtATime(t *testing.T) {
c, found := HolderConsumerFor("anchor", "builder", DeclaredSeat{Name: "mesh-build-machine", Accepts: []string{"build"}})
if !found {
t.Fatal("a seat that accepts work has no worker")
}
if c.Queue != "" || c.Push {
t.Fatalf("the worker is pushed (queue %q, push %v); a holder pulls when it is free", c.Queue, c.Push)
}
if c.MaxAckPending != 0 {
t.Fatalf("the worker caps asks in flight at %d; pulling bounds them by the holders working", c.MaxAckPending)
}
if c.Name != "SEAT_NODE_BUILD_AGENT_worker" || c.Stream != "SEAT_NODE_BUILD_AGENT" {
t.Fatalf("the worker is %s on %s; one per seat, shared by its holders", c.Name, c.Stream)
if c.MaxAckPending != 1 {
t.Fatalf("the worker may have %d asks in flight; one, so a queue is a queue", c.MaxAckPending)
}
}
-101
View File
@@ -1,7 +1,6 @@
package broker
import (
"context"
"crypto/sha256"
"crypto/tls"
"crypto/x509"
@@ -13,7 +12,6 @@ import (
"time"
"github.com/nats-io/nats.go"
"github.com/nats-io/nats.go/jetstream"
)
// The JetStream side of the controller: the one place the mesh's streams and consumers are
@@ -86,13 +84,6 @@ func pinnedTo(path string) (*tls.Config, error) {
return PinnedToFingerprint(want), nil
}
// OnConn is the JetStream handle over a connection the caller already holds — the control plane's
// link — for asserting what the bus holds without dialling a second time.
func OnConn(conn *nats.Conn) *JetStream {
js, _ := conn.JetStream()
return &JetStream{conn: conn, js: js}
}
// DialPinned is Dial with the server's certificate pinned by a fingerprint the caller already holds
// — a module or a build machine that was handed one beside its credential, and has no file.
func DialPinned(url, fingerprint string, opts ...nats.Option) (*JetStream, error) {
@@ -223,51 +214,6 @@ func (j *JetStream) EnsureConsumer(c Consumer) error {
switch have, err := j.js.ConsumerInfo(c.Stream, c.Name); {
case err == nil:
// **The controller owns the worker's shape, type included** (novox/hq issue 206). A holder
// built for a pull worker cannot bind a push one — `cannot pull subscribe to push based
// consumer` — and on 2026-10-03 the build machine rolled before the controller that would
// have redefined its worker, restarted on that for an hour, and nothing could build the
// controller that would have ended it. The server cannot change a consumer's type in place,
// so one of the wrong type is re-made: on a work queue nothing is lost, because what was
// acknowledged is gone from the stream and what was not is delivered again from the start.
// On any other stream a re-made consumer would replay what this one acknowledged (issue
// 156), so there it is said and left, and the person re-makes it knowing the cost.
if havePush, wantPush := have.Config.DeliverSubject != "", want.DeliverSubject != ""; havePush != wantPush {
shape := func(push bool) string {
if push {
return "push"
}
return "pull"
}
info, err := j.js.StreamInfo(c.Stream)
if err != nil {
return fmt.Errorf("asking about stream %s to re-make consumer %s: %w", c.Stream, c.Name, err)
}
if info.Config.Retention != nats.WorkQueuePolicy {
// **A stream that keeps its history is re-made from now on, never from the start.**
// Left for a hand, the hand re-makes it with the server's default — everything the
// stream holds — which on 2026-10-03 replayed every build ask since 1 October and
// re-registered nine modules from the past (novox/hq issue 207). What this consumer
// had not yet acknowledged is lost with it, and said: on a history stream that is
// the smaller cost, and the asks in flight are visible to whoever asked.
j.note("consumer %s on %s changes from %s to %s delivery on a stream that keeps its history: "+
"re-made to deliver from now on, so nothing this one acknowledged comes back (novox/hq issue "+
"207); %d ask(s) it had not acknowledged are not carried over and must be asked again",
c.Name, c.Stream, shape(havePush), shape(wantPush), have.NumPending+uint64(have.NumAckPending))
want.DeliverPolicy = nats.DeliverNewPolicy
} else {
j.note("consumer %s on %s changes from %s to %s delivery: re-made where it left off, nothing "+
"acknowledged comes back and nothing pending is lost (novox/hq issue 206); a holder bound to "+
"the old shape binds again", c.Name, c.Stream, shape(havePush), shape(wantPush))
}
if err := j.js.DeleteConsumer(c.Stream, c.Name); err != nil {
return fmt.Errorf("re-making consumer %s on %s as %s: %w", c.Name, c.Stream, shape(wantPush), err)
}
if _, err := j.js.AddConsumer(c.Stream, want); err != nil {
return fmt.Errorf("re-making consumer %s on %s as %s: %w", c.Name, c.Stream, shape(wantPush), err)
}
return nil
}
// Where an existing consumer starts is its history, not something an assertion may move:
// the server refuses a changed deliver policy outright. Carried across, so asserting twice
// is the no-op a restart depends on.
@@ -325,50 +271,3 @@ func retentionOf(r Retention) nats.RetentionPolicy {
return nats.LimitsPolicy
}
}
// EnsureBucket creates a module's bucket if it is absent and brings its options to match if it is
// present (novox/hq ADR 0201).
//
// **An update, never a delete and recreate**, for the reason a stream is updated: recreating
// discards what the bucket holds, and what a module's state holds is data. The mesh's caps are
// asserted with the owner's options, so a bucket made by hand converges to them.
func (j *JetStream) EnsureBucket(b Bucket) error {
history := b.History
if history == 0 {
history = 1
}
js, err := jetstream.New(j.conn)
if err != nil {
return err
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if _, err := js.CreateOrUpdateKeyValue(ctx, jetstream.KeyValueConfig{
Bucket: b.Bucket(),
Description: b.Why(),
History: uint8(history),
TTL: time.Duration(b.TTLSeconds) * time.Second,
MaxValueSize: StateMaxValueBytes,
MaxBytes: StateMaxBytes,
Storage: jetstream.FileStorage,
}); err != nil {
return fmt.Errorf("asserting bucket %s: %w", b.Bucket(), err)
}
return nil
}
// BucketNames is every key-value bucket on the server, the mesh's and anybody else's.
func (j *JetStream) BucketNames() ([]string, error) {
js, err := jetstream.New(j.conn)
if err != nil {
return nil, err
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
lister := js.KeyValueStoreNames(ctx)
var out []string
for name := range lister.Name() {
out = append(out, name)
}
return out, lister.Error()
}
-6
View File
@@ -45,11 +45,6 @@ type Membership struct {
// module that must tell the mesh from the world, the route proxy serving an internal name, reads
// it here rather than keeping a definition of its own.
Mesh []string `json:"mesh,omitempty"`
// State is every bucket this module's code may reach, by the name it uses for each, and whether
// it may write it (novox/hq ADR 0201): the runtime answers a bundle's state verbs from this list
// and refuses, with the reason, what is not on it — the bus enforces only the union over every
// module on the machine.
State []StateIssued `json:"state,omitempty"`
}
// Served is one address a tool is answered on.
@@ -108,7 +103,6 @@ func MembershipFor(node string, d Declared, where Placements) Membership {
m.Seats = append(m.Seats, SeatServed{Seat: s.Name, Verb: verb, Subject: seatToolSubject(s, verb, node)})
}
}
m.State = stateIssuedFor(d)
if len(d.Invokes) > 0 {
m.Reaches = map[string][]string{}
for _, t := range d.Invokes {
-34
View File
@@ -73,37 +73,3 @@ func TestAnAccountMayReadItsOwnMembershipAndNoOthers(t *testing.T) {
has(t, perms.Publish, "$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.anchor.postgres")
hasNot(t, perms.Subscribe, "mesh.assignment.>")
}
// The runtime arriving on a machine changes nothing about what each module is issued (to-be 38 WP2):
// the memberships are composed as before and the runtime reads several of them. What the machine's
// user list gains is one runtime principal, and loses nothing but the runtime module's own.
func TestTheRuntimeArrivingLeavesEveryMembershipAsItWas(t *testing.T) {
filter := Seat{Name: "node-packet-filter", Scope: "node", Serves: []string{"rules", "reload"}}
three := []Declared{
{Module: "nftables", Holds: []Seat{filter}, Serves: []string{"firewall_rules"}},
{Module: "zsh", Serves: []string{"execute"}},
{Module: "systemd", Serves: []string{"units"}},
}
before := Records{Nodes: []string{"anchor"}, Assigned: map[string][]Declared{"anchor": three}}
after := Records{Nodes: []string{"anchor"}, Assigned: map[string][]Declared{
"anchor": append(append([]Declared{}, three...), Declared{Module: RuntimeModule}),
}}
for _, d := range three {
was := MembershipFor("anchor", d, PlacementsOf(before, nil))
is := MembershipFor("anchor", d, PlacementsOf(after, nil))
if !reflect.DeepEqual(was, is) {
t.Errorf("%s's membership changed when the runtime arrived:\n%+v\n%+v", d.Module, was, is)
}
}
users, err := Users(after)
if err != nil {
t.Fatal(err)
}
kinds := map[Kind]int{}
for _, p := range users {
kinds[p.Kind]++
}
if kinds[KindNodeTools] != 1 || kinds[KindModule] != 3 || kinds[KindNode] != 1 || kinds[KindController] != 1 {
t.Errorf("the machine's users are %v; one runtime, the three modules, the host and the controller", kinds)
}
}
+10 -182
View File
@@ -34,20 +34,8 @@ const (
// authority is a list of tools and nothing else — not control, not declarations, not builds,
// and no ability to answer anything, because a person asks.
KindPerson Kind = "person"
// KindNodeTools is a machine's tool runtime (novox/hq ADR 0175, to-be 38): one process per
// node, on the host side, serving every assigned module's tools and every held seat's verbs.
// Its authority is the union of what the modules it carries would each have had for their
// tools — and nothing of what they consume, because tools are what it runs, not reactions.
KindNodeTools Kind = "node-tools"
)
// RuntimeModule is the module that IS the node's tool runtime (novox/hq ADR 0175). Where it is
// assigned, the mesh composes one runtime principal for the machine in place of that module's own,
// and the per-module containers that served tools until then stop being the way tools reach a node.
// Mirrored in the catalogue package, which the agreement test holds to the same string; one
// constant, so a rename is one edit and the two packages cannot drift.
const RuntimeModule = "node-tools"
// Seat is a role on the bus as a principal relates to it: the subjects it accepts, and those it
// emits (novox/hq ADR 0118, design 29 §5).
type Seat struct {
@@ -86,13 +74,6 @@ type Principal struct {
// a namespace no such module owns. Every service started and the graph stayed empty.
Watches []Seat
// Carries are the modules whose tools this principal serves, for a KindNodeTools principal
// (novox/hq ADR 0175): every module assigned to its node, as each declares itself. Its
// serving authority is the union of theirs — each module's own tool namespace and each held
// seat's verbs on this node — derived from the same declarations the modules' own principals
// are, so the runtime can serve nothing a module could not have served for itself.
Carries []Declared
// Invokes are the tools this principal may call, as `<module>.<tool>`; a single `*` is every
// tool. A person's whole authority (design 25 §7), and a module's only if its manifest says so
// (novox/hq ADR 0152) — the console's does, and nothing else's.
@@ -103,12 +84,6 @@ type Principal struct {
// permission and nothing beside it.
Invokes []string
// State is the local names of the state this principal's module keeps, and Reads the state of
// others it reads as `<module>.<name>` (novox/hq ADR 0201): a bucket each, kept by the owner's
// instances and read by whoever declares it.
State []string
Reads []string
// PasswordHash is the bcrypt hash the mesh minted. The plaintext is sealed to the principal
// and never appears here: this file is written to a node's disk and read by a server, and a
// secret that can be read from a configuration file is a secret with a wider blast radius
@@ -116,13 +91,10 @@ type Principal struct {
PasswordHash string
}
// seatsTheControllerAsks are the roles the mesh's own flows submit work to. Named rather than
// meshSeatsTheControllerUses are the roles the mesh's own flows submit work to. Named rather than
// derived from the seat set: the controller is not a module and declares no `uses`, so its side of a
// seat has to be stated, and a list is what makes "which roles does the mesh itself talk to" answerable.
// Both build roles while the handover runs (novox/hq ADR 0190): the controller asks whichever has a
// holder, and the retired one has one until build-agent replaces the builder. The second entry
// goes with the retired seat row.
var seatsTheControllerAsks = []string{"node-build-agent", "mesh-build-machine"}
var meshSeatsTheControllerUses = []string{"mesh-build-machine"}
// enrolmentPrefix is the space every enrolling node's user and inbox live under, so the one place the
// controller may answer an enrolment is derived from the same constant the user is named from.
@@ -140,10 +112,7 @@ func (p Principal) Username() string {
switch p.Kind {
case KindPerson:
return "person." + p.Module
case KindModule, KindNodeTools:
// The runtime is named exactly as the module it stands for would have been: the mesh
// issues its credential through the same path a module's takes (`module issue`), and
// that path knows the node and the module, not the kind.
case KindModule:
return p.Node + "." + p.Module
case KindNode:
return "node." + p.Node
@@ -217,9 +186,7 @@ func PermissionsFor(p Principal) (Permissions, error) {
// Work the mesh's own flows submit to a role, and the outcomes they wait on (ADR 0121). A
// build is the one today: the controller asks, and reads the answer from the seat's event
// like the catalogue does — which is why no holder needs to publish into anybody's inbox.
// A node-scoped seat's work subject carries no node (novox/hq ADR 0190): the ask goes to
// the role, and whichever machine holding it is idle takes it.
for _, seat := range seatsTheControllerAsks {
for _, seat := range meshSeatsTheControllerUses {
pub = append(pub, "mesh.seat."+seat+".accept.>")
}
// **And what the mesh says it did** (novox/hq ADR 0134). The control plane states its own
@@ -242,8 +209,6 @@ func PermissionsFor(p Principal) (Permissions, error) {
// which this package mirrors rather than reads, and a verb the seat does not declare is a
// subject nothing publishes.
sub = append(sub, "mesh.seat."+ControllerSeat+".tool.>")
// And says so (novox/hq ADR 0197): it answers discovery for the seat it serves.
sub = append(sub, announcing(ControllerSeat)...)
// The two events it reacts to, and its ack subject on the stream they arrive from
// (streams.go). **Each named, not a pattern**: `mesh.mod.*.event.>` would make the
@@ -279,9 +244,6 @@ func PermissionsFor(p Principal) (Permissions, error) {
return Permissions{}, err
}
pub = append(pub, invoked...)
// And may ask what answers (novox/hq ADR 0197): a question every service answers about
// itself, its replies to the asker's own inbox.
pub = append(pub, discovering()...)
case KindEnrolment:
// A leaked token is useless for anything but enrolling: it cannot read a declaration, hear
@@ -338,15 +300,6 @@ func PermissionsFor(p Principal) (Permissions, error) {
// away — no other principal may subscribe this namespace, and a caller's authority is
// still granted per tool, by name, on the publish side.
sub = append(sub, own+".tool.>")
// It says what it serves (novox/hq ADR 0197): discovery for its own name and every seat it
// holds a verb of, answered by the runtime that serves them.
announced := []string{p.Module}
for _, s := range p.Holds {
if len(s.Serves) > 0 {
announced = append(announced, s.Name)
}
}
sub = append(sub, announcing(announced...)...)
// Its own membership (ADR 0160): the one subject a runtime derives for itself, read
// directly from the stream and followed live. Nothing else's.
sub = append(sub, MembershipSubject(p.Node, p.Module))
@@ -393,17 +346,13 @@ func PermissionsFor(p Principal) (Permissions, error) {
// 3. Seats it holds: full participation.
for _, s := range p.Holds {
// Taking work from the role's queue: the worker consumer every holder shares (asked
// about, pulled from, acknowledged), on the seat's own stream (novox/hq ADR 0190). A
// holder pulls — asks the consumer for its next message, answered on its own inbox —
// so what it needs is MSG.NEXT on that worker and nothing delivered to it. The first
// machine to take work over the new bus was refused the asking (2026-09-28).
// Taking work from the role's queue: the worker consumer it binds (asked about,
// delivered on, acknowledged), each on the seat's own stream. The first machine to
// take work over the new bus was refused the asking (2026-09-28).
worker := "SEAT_" + upperSnake(s.Name) + "_worker"
stream := seatStreamName(s.Name)
pub = append(pub,
"$JS.API.CONSUMER.INFO."+stream+"."+worker,
"$JS.API.CONSUMER.MSG.NEXT."+stream+"."+worker,
"$JS.ACK."+stream+"."+worker+".>")
sub = append(sub, "_DELIVER."+worker, "_DELIVER."+worker+".>")
pub = append(pub, "$JS.API.CONSUMER.INFO."+stream+"."+worker, "$JS.ACK."+stream+"."+worker+".>")
for _, a := range s.Accepts {
sub = append(sub, seatSubject(s, "accept", a))
}
@@ -426,86 +375,6 @@ func PermissionsFor(p Principal) (Permissions, error) {
pub = append(pub, seatToolSubject(s, t, "*"))
}
}
// 5. Its state, and the state of others it reads (novox/hq ADR 0201): every one read and
// watched, its own written too.
pub = append(pub, stateGrants(p.Module, p.State, p.Reads)...)
case KindNodeTools:
// **One process serves what every module on the machine would have served for itself**
// (novox/hq ADR 0175). Each carried module's whole tool namespace — the same grant that
// module's own principal has, for the same reason: the tools a module serves are what its
// code answers, and a list here would be a second copy of it. Each held seat's verbs on
// this node, as the holder's own principal would be granted them.
var serves []string
for _, d := range p.Carries {
if !safeSubject.MatchString(d.Module) {
return Permissions{}, fmt.Errorf(
"%q cannot be part of a subject: a permission is a subject pattern, and this would widen it", d.Module)
}
serves = append(serves, d.Module)
for _, s := range d.Holds {
serves = append(serves, s.Name)
}
own := "mesh.mod." + d.Module
sub = append(sub, own+".tool.>")
// A tool that emits an event is the module's code and emits under the module's name
// (ADR 0042); the runtime carrying that code may publish what the module declared it
// emits, and nothing it did not.
for _, e := range d.Emits {
pub = append(pub, own+".event."+e)
}
for _, s := range d.Holds {
for _, t := range s.Serves {
sub = append(sub, seatToolSubject(s, t, p.Node))
}
}
}
// Every assigned module's membership on this node (ADR 0160): one per module, read
// directly from the stream and followed live. This node's and no other's — the one token
// that varies is the module, so the pattern is the machine's own assignments.
sub = append(sub, "mesh.assignment."+p.Node+".*")
pub = append(pub, "$JS.API.DIRECT.GET."+AssignmentsStream+".mesh.assignment."+p.Node+".*")
// And every tool on the mesh (ADR 0175, decision 5): any node may call any tool on any
// node, as the console already could — the runtime is the console's serving mode.
invoked, err := invokedSubjects([]string{"*"})
if err != nil {
return Permissions{}, err
}
pub = append(pub, invoked...)
// It says what it serves and may ask what answers (novox/hq ADR 0197): the runtime answers
// discovery for each module and seat it carries, and the console it is asks the bus.
// One service per runtime process, named for the runtime: the bus lets a principal answer each
// request once, so the runtime announces everything it carries under its own name.
sub = append(sub, announcing(append([]string{RuntimeModule}, serves...)...)...)
pub = append(pub, discovering()...)
// **And it consumes for the modules it carries** (novox/hq ADR 0198, which changes ADR 0175's
// "it consumes nothing"): a module's long-running code is a bundle this runtime launches, and
// the runtime is its bus — it reads the module's own durable consumer and acknowledges what
// the module's code took. Exactly the grants the module's own principal has for that consumer,
// on its name and no other's: asking about it, pulling from it, acknowledging it. The
// consumer is still the controller's to make, from the module's own principal.
for _, d := range p.Carries {
own := Principal{Kind: KindModule, Node: p.Node, Module: d.Module, Emits: d.Emits,
Consumes: d.Consumes, Serves: d.Serves, Holds: d.Holds, Uses: d.Uses, Watches: d.Watches}
if _, consumes := ConsumerFor(own); !consumes {
continue
}
stream, durable := consumerStream(own), consumerDurable(own)
pub = append(pub,
"$JS.API.CONSUMER.INFO."+stream+"."+durable,
"$JS.API.CONSUMER.MSG.NEXT."+stream+"."+durable,
"$JS.ACK."+stream+"."+durable+".>")
}
// **And it keeps and reads state for the modules it carries** (novox/hq ADR 0201): the union
// of what each may do with a bucket — an owner's write, a reader's read. That one module's code
// does not write another's bucket through it is the runtime's to keep, from the membership
// each assignment is issued, as it keeps each module's events under that module's own name.
for _, d := range p.Carries {
pub = append(pub, stateGrants(d.Module, stateNames(d.State), d.Reads)...)
}
sub = unique(sub)
pub = unique(pub)
}
if p.Kind == KindPerson {
@@ -513,11 +382,6 @@ func PermissionsFor(p Principal) (Permissions, error) {
// consumer, because nothing is delivered to a person — they ask and are answered.
sub = append(sub, p.inbox())
}
if p.Kind == KindNodeTools {
// Its reply space, so the answers to what its tools call come back to it. No ack subject
// for the same reason a person has none: nothing is delivered to it.
sub = append(sub, p.inbox())
}
if p.Kind == KindModule || p.Kind == KindNode || p.Kind == KindController {
// Its own reply space, and nothing wider.
@@ -539,7 +403,7 @@ func PermissionsFor(p Principal) (Permissions, error) {
// A module answers what it was asked — a tool call reaches it on its own namespace, so the
// authority is bounded by having been asked — and so does the controller. A node and a
// person are never asked anything, and are granted nothing here.
AllowResponses: p.Kind == KindModule || p.Kind == KindController || p.Kind == KindNodeTools,
AllowResponses: p.Kind == KindModule || p.Kind == KindController,
}, nil
}
@@ -761,20 +625,6 @@ func ComposeAccounts(principals []Principal) (string, error) {
return b.String(), nil
}
// unique is a sorted list with each subject once. Two carried modules holding seats with the same
// verb, or the runtime module itself carried beside the others, would otherwise write a grant twice
// — harmless to the server, and noise in a file that is read as the mesh's authority model.
func unique(values []string) []string {
sort.Strings(values)
out := values[:0]
for i, v := range values {
if i == 0 || v != values[i-1] {
out = append(out, v)
}
}
return out
}
func quoted(values []string) string {
if len(values) == 0 {
return ""
@@ -823,25 +673,3 @@ func invokedSubjects(invokes []string) ([]string, error) {
}
return out, nil
}
// announcing is what a principal that serves tools subscribes to answer the NATS services
// protocol's discovery (novox/hq ADR 0197): the questions asked of every service, and those asked of
// each name it serves — its own and no other's, so it cannot answer for a service it is not.
func announcing(names ...string) []string {
out := []string{"$SRV.PING", "$SRV.INFO", "$SRV.STATS"}
for _, n := range names {
if !safeSubject.MatchString(n) {
continue
}
for _, verb := range []string{"PING", "INFO", "STATS"} {
out = append(out, "$SRV."+verb+"."+n, "$SRV."+verb+"."+n+".>")
}
}
return out
}
// discovering is what a principal publishes to ask what answers (novox/hq ADR 0197): the services
// protocol's discovery requests, whose replies come to its own inbox.
func discovering() []string {
return []string{"$SRV.PING", "$SRV.PING.>", "$SRV.INFO", "$SRV.INFO.>"}
}
+1 -109
View File
@@ -233,9 +233,7 @@ func TestAPersonReachesNothingButTools(t *testing.T) {
perms, _ := PermissionsFor(Principal{Kind: KindPerson, Module: "jo",
Invokes: []string{"*"}, PasswordHash: "x"})
for _, p := range perms.Publish {
// A tool call, or asking what answers (novox/hq ADR 0197) — a question every service
// answers about itself, which claims nothing and controls nothing.
if !strings.Contains(p, ".tool.") && !strings.HasPrefix(p, "$SRV.") {
if !strings.Contains(p, ".tool.") {
t.Errorf("a person may publish %q, which is not a tool call", p)
}
}
@@ -373,109 +371,3 @@ func TestAModulePullsItsOwnConsumerAndNoOthers(t *testing.T) {
}
}
}
// The runtime's authority is the union of what the modules it carries would have been granted for
// their tools (novox/hq ADR 0175): every carried module's tool namespace, every held seat's verbs
// on this node, every module's membership on this node, and a call to anything. Nothing it
// consumes, because it reacts to nothing.
func TestTheRuntimeServesTheUnionAndConsumesForItsModules(t *testing.T) {
filter := Seat{Name: "node-packet-filter", Scope: "node", Serves: []string{"rules", "reload"}}
p := Principal{Kind: KindNodeTools, Node: "anchor", Module: RuntimeModule, Carries: []Declared{
{Module: "nftables", Holds: []Seat{filter}, Serves: []string{"firewall_rules"}},
{Module: "zsh", Emits: []string{"shell.opened"}, Consumes: []string{"shop.order.placed"}},
{Module: RuntimeModule},
}}
perms, err := PermissionsFor(p)
if err != nil {
t.Fatal(err)
}
for _, want := range []string{
"mesh.mod.nftables.tool.>", "mesh.mod.zsh.tool.>", "mesh.mod." + RuntimeModule + ".tool.>",
"mesh.seat.node-packet-filter.tool.rules.anchor", "mesh.seat.node-packet-filter.tool.reload.anchor",
"mesh.assignment.anchor.*",
"_INBOX.anchor." + RuntimeModule + ".>",
} {
if !contains(perms.Subscribe, want) {
t.Errorf("the runtime may not subscribe %s: %v", want, perms.Subscribe)
}
}
for _, want := range []string{
"mesh.mod.*.tool.>", "mesh.seat.*.tool.>",
"$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.anchor.*",
"mesh.mod.zsh.event.shell.opened",
} {
if !contains(perms.Publish, want) {
t.Errorf("the runtime may not publish %s: %v", want, perms.Publish)
}
}
// It reads the consumer of every carried module that consumes — that module's, by its name, as
// the module's own principal could (novox/hq ADR 0198) — and of no module that consumes nothing.
for _, want := range []string{
"$JS.API.CONSUMER.INFO.EVENTS.anchor_zsh",
"$JS.API.CONSUMER.MSG.NEXT.EVENTS.anchor_zsh",
"$JS.ACK.EVENTS.anchor_zsh.>",
} {
if !contains(perms.Publish, want) {
t.Errorf("the runtime may not read zsh's consumer: %s missing from %v", want, perms.Publish)
}
}
for _, s := range perms.Publish {
if (strings.HasPrefix(s, "$JS.ACK.") || strings.Contains(s, "CONSUMER")) && !strings.Contains(s, "anchor_zsh") {
t.Errorf("the runtime was granted a consumer no carried module of it consumes on: %s", s)
}
}
// It pulls; nothing is pushed to it, and it subscribes no event subject directly.
for _, s := range perms.Subscribe {
if strings.Contains(s, ".event.") || strings.HasPrefix(s, "_DELIVER.") {
t.Errorf("the runtime was granted a delivery: %s", s)
}
}
if !perms.AllowResponses {
t.Error("the runtime answers what it is asked, and may not reply")
}
if _, needed := ConsumerFor(p); needed {
t.Error("a consumer would be made for the runtime itself; it reads its modules' consumers, never one of its own")
}
// Each subject once in each list: the file is read as the mesh's authority model. One subject may
// stand in both — the runtime answers discovery on `$SRV.INFO` and, as the console, asks it
// (novox/hq ADR 0197) — because subscribing and publishing are two different grants.
for _, list := range [][]string{perms.Subscribe, perms.Publish} {
seen := map[string]bool{}
for _, s := range list {
if seen[s] {
t.Errorf("%s is granted twice", s)
}
seen[s] = true
}
}
}
func contains(list []string, want string) bool {
for _, s := range list {
if s == want {
return true
}
}
return false
}
// A node-scoped seat's work is shared (novox/hq ADR 0190): its holder on any machine subscribes the
// seat's one work subject, with no node in it, so holders on several machines read one queue. The
// node token belongs to a seat's tools, which are asked of one machine (design 33 §4), not to its work.
func TestANodeSeatsWorkSubjectCarriesNoNode(t *testing.T) {
seat := Seat{Name: "node-build-agent", Scope: "node", Accepts: []string{"build"}, Serves: []string{"status"}}
perms, err := PermissionsFor(Principal{Kind: KindModule, Node: "anchor", Module: "build-agent", Holds: []Seat{seat}})
if err != nil {
t.Fatal(err)
}
has(t, perms.Subscribe, "mesh.seat.node-build-agent.accept.build")
hasNot(t, perms.Subscribe, "mesh.seat.node-build-agent.accept.build.anchor")
// And its tools still carry the machine.
has(t, perms.Subscribe, "mesh.seat.node-build-agent.tool.status.anchor")
// The controller asks the role, not a machine.
controller, err := PermissionsFor(Principal{Kind: KindController})
if err != nil {
t.Fatal(err)
}
has(t, controller.Publish, "mesh.seat.node-build-agent.accept.>")
}
-169
View File
@@ -1,169 +0,0 @@
package broker
import (
"fmt"
"sort"
"strings"
)
// A module's state on the bus (novox/hq ADR 0201, design 32 §4, design 25 §3).
//
// A module names the state it keeps (`state`) and the state of others it reads (`reads`), and each
// is a key-value bucket: the server's own last-per-subject stream with direct reads, delete markers
// and watches, which is the state relationship the mesh already uses for declarations, opened to
// modules. The controller creates every bucket from the catalogue — from registration, like a
// seat's stream, so a reader may watch before the owner runs anywhere — and no module can.
//
// Pure, like everything else in this package that decides what the bus holds; jetstream.go is the
// part that asks a server.
// The mesh's caps on a bucket, the same for every module: a value is a piece of state, not a file,
// and a bucket that grew without bound would be one module filling the bus's disk for everyone.
const (
StateMaxValueBytes = 256 * 1024
StateMaxBytes = 64 * 1024 * 1024
)
// A Bucket is one module's declared state as the bus holds it.
type Bucket struct {
Module string
Name string
// History is how many values a key keeps; zero is one.
History int
// TTLSeconds is how long a value lives; zero is until replaced or deleted.
TTLSeconds int
}
// BucketName is the bucket a module's state lives in: the module and the local name joined by an
// underscore, which neither may contain, so two modules can never derive one bucket.
func BucketName(module, name string) string { return module + "_" + name }
// Bucket is this bucket's name on the bus.
func (b Bucket) Bucket() string { return BucketName(b.Module, b.Name) }
// Why is carried into the server's description of the bucket, so somebody reading the server's
// own state finds whose it is and why it is kept.
func (b Bucket) Why() string {
return fmt.Sprintf("%s's state %q (novox/hq ADR 0201): its current value per key, written by %s, "+
"read by whatever declares it reads it; kept when %s is unassigned, because it is data",
b.Module, b.Name, b.Module, b.Module)
}
// bucketOfRead is the bucket a read names, `<module>.<name>`, or false when it names none.
func bucketOfRead(read string) (string, bool) {
at := strings.LastIndex(read, ".")
if at <= 0 || at == len(read)-1 {
return "", false
}
module, name := read[:at], read[at+1:]
if !safeSubject.MatchString(module) || !safeSubject.MatchString(name) {
return "", false
}
return BucketName(module, name), true
}
// stateGrants is what a principal publishes to reach the state its modules keep and read: for every
// bucket, binding to it, reading a key directly, and an ordered consumer for listing and watching,
// created and deleted on the bucket's own stream, with its flow control answered; for a bucket an
// owner keeps, writing under the bucket's own subjects too.
//
// **Measured against a running server, 2026-10-04** (novox/hq research 024), and each one is there
// because leaving it out failed: without STREAM.INFO nothing binds; without DIRECT.GET nothing is
// read; without CONSUMER.CREATE no key is listed and nothing is watched; without CONSUMER.DELETE a
// watch cannot be stopped and lingers on the server. A write outside these is refused by the server
// — and reaches the writer as a timeout, not a refusal, which is why the runtime refuses first.
func stateGrants(module string, keeps []string, reads []string) []string {
var out []string
read := func(bucket string) {
stream := "KV_" + bucket
out = append(out,
"$JS.API.STREAM.INFO."+stream,
"$JS.API.DIRECT.GET."+stream+".>",
"$JS.API.CONSUMER.CREATE."+stream+".>",
"$JS.API.CONSUMER.DELETE."+stream+".>",
"$JS.FC."+stream+".>")
}
for _, name := range keeps {
if !safeSubject.MatchString(name) {
continue
}
bucket := BucketName(module, name)
read(bucket)
out = append(out, "$KV."+bucket+".>")
}
for _, r := range reads {
if bucket, ok := bucketOfRead(r); ok {
read(bucket)
}
}
return out
}
// StateIssued is one bucket an assignment may reach, by the name its module uses for it: its own
// state by the local name, another's as `<module>.<name>` (novox/hq ADR 0201).
type StateIssued struct {
Name string `json:"name"`
Bucket string `json:"bucket"`
Writes bool `json:"writes,omitempty"`
}
// stateIssuedFor is every bucket a module's code may reach, as its membership lists them.
func stateIssuedFor(d Declared) []StateIssued {
var out []StateIssued
for _, b := range d.State {
out = append(out, StateIssued{Name: b.Name, Bucket: BucketName(d.Module, b.Name), Writes: true})
}
for _, r := range d.Reads {
if bucket, ok := bucketOfRead(r); ok {
out = append(out, StateIssued{Name: r, Bucket: bucket})
}
}
return out
}
// stateNames is the local names of a module's own buckets.
func stateNames(buckets []Bucket) []string {
out := make([]string, 0, len(buckets))
for _, b := range buckets {
out = append(out, b.Name)
}
return out
}
// A BucketAsserter is the part of a JetStream connection bucket assertion needs.
type BucketAsserter interface {
// EnsureBucket creates the bucket if absent and brings its options to match if present, never
// discarding what it holds.
EnsureBucket(b Bucket) error
// BucketNames is every key-value bucket on the server.
BucketNames() ([]string, error)
}
// RaiseBuckets asserts every declared bucket and answers the buckets on the server that nothing
// declares any more.
//
// **Those are reported, never removed** (novox/hq ADR 0201, ADR 0030): what a module stored is
// data, and a manifest edited, a module renamed or a catalogue entry dropped is an ordinary day's
// work that must not take data with it. Removing one is a person's act.
func RaiseBuckets(a BucketAsserter, buckets []Bucket) (undeclared []string, err error) {
sorted := append([]Bucket(nil), buckets...)
sort.Slice(sorted, func(i, j int) bool { return sorted[i].Bucket() < sorted[j].Bucket() })
declared := map[string]bool{}
for _, b := range sorted {
if err := a.EnsureBucket(b); err != nil {
return nil, fmt.Errorf("asserting %s's state %q: %w", b.Module, b.Name, err)
}
declared[b.Bucket()] = true
}
names, err := a.BucketNames()
if err != nil {
return nil, fmt.Errorf("listing the bus's state: %w", err)
}
for _, n := range names {
if !declared[n] {
undeclared = append(undeclared, n)
}
}
sort.Strings(undeclared)
return undeclared, nil
}
-180
View File
@@ -1,180 +0,0 @@
package broker
import (
"slices"
"strings"
"testing"
"github.com/nats-io/nats.go"
)
// The grants measured against a running server (novox/hq research 024): an owner reads and writes
// its bucket, a reader only reads, and neither reaches any other bucket.
func TestAnOwnerWritesItsStateAndAReaderOnlyReads(t *testing.T) {
owner, err := PermissionsFor(Principal{Kind: KindModule, Node: "one", Module: "claude-code",
State: []string{"servers"}, PasswordHash: "x"})
if err != nil {
t.Fatal(err)
}
for _, s := range []string{
"$KV.claude-code_servers.>",
"$JS.API.STREAM.INFO.KV_claude-code_servers",
"$JS.API.DIRECT.GET.KV_claude-code_servers.>",
"$JS.API.CONSUMER.CREATE.KV_claude-code_servers.>",
"$JS.API.CONSUMER.DELETE.KV_claude-code_servers.>",
"$JS.FC.KV_claude-code_servers.>",
} {
has(t, owner.Publish, s)
}
hasNot(t, owner.Publish, "$KV.>")
hasNot(t, owner.Publish, "$JS.API.>")
reader, err := PermissionsFor(Principal{Kind: KindModule, Node: "one", Module: "console",
Reads: []string{"claude-code.servers"}, PasswordHash: "x"})
if err != nil {
t.Fatal(err)
}
has(t, reader.Publish, "$JS.API.DIRECT.GET.KV_claude-code_servers.>")
has(t, reader.Publish, "$JS.API.CONSUMER.CREATE.KV_claude-code_servers.>")
hasNot(t, reader.Publish, "$KV.claude-code_servers.>")
for _, s := range reader.Subscribe {
if s == "$KV.claude-code_servers.>" {
t.Fatalf("a reader subscribes the bucket's subjects directly: %v", reader.Subscribe)
}
}
}
// One runtime carries every module on its machine, so its grant is the union: the owner's write
// where an owner is carried, a read where only a reader is.
func TestTheRuntimeKeepsAndReadsStateForItsModules(t *testing.T) {
perms, err := PermissionsFor(Principal{Kind: KindNodeTools, Node: "one", Module: RuntimeModule,
Carries: []Declared{
{Module: "claude-code", State: []Bucket{{Module: "claude-code", Name: "servers"}},
Reads: []string{"licence-manager.bindings"}},
{Module: "audit"},
}, PasswordHash: "x"})
if err != nil {
t.Fatal(err)
}
has(t, perms.Publish, "$KV.claude-code_servers.>")
has(t, perms.Publish, "$JS.API.DIRECT.GET.KV_licence-manager_bindings.>")
hasNot(t, perms.Publish, "$KV.licence-manager_bindings.>")
}
// A module with no state is granted nothing of any bucket — the composition of every module that
// existed before this is unchanged.
func TestAModuleWithNoStateReachesNoBucket(t *testing.T) {
perms, err := PermissionsFor(Principal{Kind: KindModule, Node: "one", Module: "billing",
Emits: []string{"order.placed"}, PasswordHash: "x"})
if err != nil {
t.Fatal(err)
}
for _, s := range perms.Publish {
if strings.HasPrefix(s, "$KV.") || strings.HasPrefix(s, "$JS.FC.") || strings.Contains(s, ".KV_") {
t.Fatalf("granted %q without declaring state", s)
}
}
}
// A read that names no bucket grants nothing rather than something that happens to parse.
func TestAReadThatNamesNoBucketGrantsNothing(t *testing.T) {
if got := stateGrants("a", nil, []string{"nodot", "x.", ".y", "a.b>"}); len(got) != 0 {
t.Fatalf("granted %v for reads that name no bucket", got)
}
}
// The membership lists every bucket the module's code may reach, by the name the module uses for
// it, and whether it may write it — the list the runtime refuses from.
func TestAMembershipListsTheStateItsModuleMayReach(t *testing.T) {
m := MembershipFor("one", Declared{Module: "claude-code",
State: []Bucket{{Module: "claude-code", Name: "servers"}},
Reads: []string{"licence-manager.bindings"}}, Placements{})
want := []StateIssued{
{Name: "servers", Bucket: "claude-code_servers", Writes: true},
{Name: "licence-manager.bindings", Bucket: "licence-manager_bindings"},
}
if !slices.Equal(m.State, want) {
t.Fatalf("issued %+v, want %+v", m.State, want)
}
if none := MembershipFor("one", Declared{Module: "audit"}, Placements{}); none.State != nil {
t.Fatalf("a module with no state was issued %+v", none.State)
}
}
type buckets struct {
ensured []string
on []string
}
func (b *buckets) EnsureBucket(x Bucket) error {
b.ensured = append(b.ensured, x.Bucket())
return nil
}
func (b *buckets) BucketNames() ([]string, error) { return b.on, nil }
// Every declared bucket is asserted; one on the server that nothing declares is said, not removed.
func TestRaisingStateReportsWhatNothingDeclares(t *testing.T) {
b := &buckets{on: []string{"claude-code_servers", "gone_old", "ours_by_hand"}}
undeclared, err := RaiseBuckets(b, []Bucket{{Module: "claude-code", Name: "servers"}, {Module: "a", Name: "b"}})
if err != nil {
t.Fatal(err)
}
if !slices.Equal(b.ensured, []string{"a_b", "claude-code_servers"}) {
t.Fatalf("asserted %v", b.ensured)
}
if !slices.Equal(undeclared, []string{"gone_old", "ours_by_hand"}) {
t.Fatalf("reported %v", undeclared)
}
}
// Against a real server: a bucket is created with the owner's options and the mesh's caps,
// asserting it again changes nothing and keeps what it holds, and a changed option is brought to
// match in place.
func TestABucketIsAssertedInPlace(t *testing.T) {
js := aLiveBus(t)
b := Bucket{Module: "statetest", Name: "servers"}
if _, err := RaiseBuckets(js, []Bucket{b}); err != nil {
t.Fatalf("a real server refused a module's bucket: %v", err)
}
kv, err := js.Context().KeyValue(b.Bucket())
if err != nil {
t.Fatal(err)
}
if _, err := kv.Put("all.one", []byte(`{"kept":true}`)); err != nil {
t.Fatal(err)
}
b.History = 3
if _, err := RaiseBuckets(js, []Bucket{b}); err != nil {
t.Fatalf("asserting the bucket again failed, so a restart would: %v", err)
}
got, err := kv.Get("all.one")
if err != nil || string(got.Value()) != `{"kept":true}` {
t.Fatalf("asserting again lost what the bucket held: %v %v", got, err)
}
status, err := kv.Status()
if err != nil {
t.Fatal(err)
}
if status.History() != 3 {
t.Fatalf("history is %d, the owner declared 3", status.History())
}
if s, ok := status.(*nats.KeyValueBucketStatus); ok {
if c := s.StreamInfo().Config; c.MaxMsgSize != StateMaxValueBytes || c.MaxBytes != StateMaxBytes {
t.Fatalf("the mesh's caps are not on the bucket: value %d, bucket %d", c.MaxMsgSize, c.MaxBytes)
}
}
}
// Against a real server: the handle over a connection the control plane already holds asserts a
// bucket as Dial's does — what a push uses, so a module registered since the last start has its
// bucket before its membership names it.
func TestABucketIsAssertedOverAHeldConnection(t *testing.T) {
js := aLiveBus(t)
held := OnConn(js.Conn())
if _, err := RaiseBuckets(held, []Bucket{{Module: "statetest", Name: "held"}}); err != nil {
t.Fatalf("asserting over a held connection failed: %v", err)
}
if _, err := js.Context().KeyValue("statetest_held"); err != nil {
t.Fatalf("the bucket is not there: %v", err)
}
}
+1 -6
View File
@@ -217,15 +217,10 @@ var ControllerFollows = []string{
// A build's outcome, which is the build-machine role's own event now (ADR 0121) rather than a
// message on the control branch. Same three audiences, one publish: whoever asked, this, and the
// catalogue.
seatEventSubject("node-build-agent", "built"),
seatEventSubject("mesh-build-machine", "built"),
// The forge's merges: what moved a source, so the mesh builds what that source produces
// without anybody telling it (novox/hq 04-ISSUES/131). Appended, because the index is a name.
moduleEventSubject("gitea", "pull.merged"),
// The retired build role's outcome too, while the handover runs (novox/hq ADR 0190): the one
// build machine keeps answering on its seat until build-agent replaces it, and the outcome that
// registers build-agent itself comes from there. Appended, for the same reason as above; goes
// with the retired seat row.
seatEventSubject("mesh-build-machine", "built"),
}
// moduleEventSubject is where one module's event lands. The same derivation PermissionsFor uses, so
+6 -6
View File
@@ -24,8 +24,8 @@ accounts {
jetstream: enabled
users = [
{ user: "controller", password: "$2a$11$cccccccccccccccccccccc", permissions: {
publish: { allow: ["$JS.ACK.CONTROL.controller.>", "$JS.ACK.EVENTS.controller.>", "$JS.API.>", "_INBOX.enrol.>", "mesh.assignment.>", "mesh.control.>", "mesh.mod.*.tool.>", "mesh.node.>", "mesh.seat.mesh-build-machine.accept.>", "mesh.seat.mesh-controller.event.applied", "mesh.seat.mesh-controller.event.built-before", "mesh.seat.mesh-controller.event.refused", "mesh.seat.node-build-agent.accept.>"] }
subscribe: { allow: ["$JS.API.>", "$SRV.INFO", "$SRV.INFO.mesh-controller", "$SRV.INFO.mesh-controller.>", "$SRV.PING", "$SRV.PING.mesh-controller", "$SRV.PING.mesh-controller.>", "$SRV.STATS", "$SRV.STATS.mesh-controller", "$SRV.STATS.mesh-controller.>", "_DELIVER.controller", "_DELIVER.controller.>", "_INBOX.controller.>", "mesh.control.>", "mesh.mod.gitea.event.pull.merged", "mesh.mod.mesh-catalog.event.catching-up", "mesh.mod.mesh-catalog.event.upgraded", "mesh.seat.mesh-build-machine.event.built", "mesh.seat.mesh-controller.tool.>", "mesh.seat.node-build-agent.event.built"] }
publish: { allow: ["$JS.ACK.CONTROL.controller.>", "$JS.ACK.EVENTS.controller.>", "$JS.API.>", "_INBOX.enrol.>", "mesh.assignment.>", "mesh.control.>", "mesh.mod.*.tool.>", "mesh.node.>", "mesh.seat.mesh-build-machine.accept.>", "mesh.seat.mesh-controller.event.applied", "mesh.seat.mesh-controller.event.built-before", "mesh.seat.mesh-controller.event.refused"] }
subscribe: { allow: ["$JS.API.>", "_DELIVER.controller", "_DELIVER.controller.>", "_INBOX.controller.>", "mesh.control.>", "mesh.mod.gitea.event.pull.merged", "mesh.mod.mesh-catalog.event.catching-up", "mesh.mod.mesh-catalog.event.upgraded", "mesh.seat.mesh-build-machine.event.built", "mesh.seat.mesh-controller.tool.>"] }
allow_responses: { max: 1, ttl: "1m" }
} }
{ user: "enrol.one", password: "$2a$11$eeeeeeeeeeeeeeeeeeeeee", permissions: {
@@ -37,18 +37,18 @@ accounts {
subscribe: { allow: ["_DELIVER.one", "_DELIVER.one.>", "_INBOX.node.one.>", "mesh.node.one.declare"] }
} }
{ user: "one.telegram", password: "$2a$11$tttttttttttttttttttttt", permissions: {
publish: { allow: ["$JS.ACK.EVENTS.one_telegram.>", "$JS.ACK.SEAT_TELEGRAM_SENDER.SEAT_TELEGRAM_SENDER_worker.>", "$JS.API.CONSUMER.INFO.EVENTS.one_telegram", "$JS.API.CONSUMER.INFO.SEAT_TELEGRAM_SENDER.SEAT_TELEGRAM_SENDER_worker", "$JS.API.CONSUMER.MSG.NEXT.EVENTS.one_telegram", "$JS.API.CONSUMER.MSG.NEXT.SEAT_TELEGRAM_SENDER.SEAT_TELEGRAM_SENDER_worker", "$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.one.telegram", "mesh.seat.telegram-sender.event.delivered", "mesh.seat.telegram-sender.event.failed"] }
subscribe: { allow: ["$SRV.INFO", "$SRV.INFO.telegram", "$SRV.INFO.telegram.>", "$SRV.PING", "$SRV.PING.telegram", "$SRV.PING.telegram.>", "$SRV.STATS", "$SRV.STATS.telegram", "$SRV.STATS.telegram.>", "_INBOX.one.telegram.>", "mesh.assignment.one.telegram", "mesh.mod.telegram.tool.>", "mesh.seat.telegram-sender.accept.send"] }
publish: { allow: ["$JS.ACK.EVENTS.one_telegram.>", "$JS.ACK.SEAT_TELEGRAM_SENDER.SEAT_TELEGRAM_SENDER_worker.>", "$JS.API.CONSUMER.INFO.EVENTS.one_telegram", "$JS.API.CONSUMER.INFO.SEAT_TELEGRAM_SENDER.SEAT_TELEGRAM_SENDER_worker", "$JS.API.CONSUMER.MSG.NEXT.EVENTS.one_telegram", "$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.one.telegram", "mesh.seat.telegram-sender.event.delivered", "mesh.seat.telegram-sender.event.failed"] }
subscribe: { allow: ["_DELIVER.SEAT_TELEGRAM_SENDER_worker", "_DELIVER.SEAT_TELEGRAM_SENDER_worker.>", "_INBOX.one.telegram.>", "mesh.assignment.one.telegram", "mesh.mod.telegram.tool.>", "mesh.seat.telegram-sender.accept.send"] }
allow_responses: { max: 1, ttl: "1m" }
} }
{ user: "two.audit", password: "$2a$11$aaaaaaaaaaaaaaaaaaaaaa", permissions: {
publish: { allow: ["$JS.ACK.EVENTS.two_audit.>", "$JS.API.CONSUMER.INFO.EVENTS.two_audit", "$JS.API.CONSUMER.MSG.NEXT.EVENTS.two_audit", "$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.two.audit"] }
subscribe: { allow: ["$SRV.INFO", "$SRV.INFO.audit", "$SRV.INFO.audit.>", "$SRV.PING", "$SRV.PING.audit", "$SRV.PING.audit.>", "$SRV.STATS", "$SRV.STATS.audit", "$SRV.STATS.audit.>", "_INBOX.two.audit.>", "mesh.assignment.two.audit", "mesh.mod.audit.tool.>", "mesh.mod.shop.event.order.placed"] }
subscribe: { allow: ["_INBOX.two.audit.>", "mesh.assignment.two.audit", "mesh.mod.audit.tool.>", "mesh.mod.shop.event.order.placed"] }
allow_responses: { max: 1, ttl: "1m" }
} }
{ user: "two.shop", password: "$2a$11$ssssssssssssssssssssss", permissions: {
publish: { allow: ["$JS.ACK.EVENTS.two_shop.>", "$JS.API.CONSUMER.INFO.EVENTS.two_shop", "$JS.API.CONSUMER.MSG.NEXT.EVENTS.two_shop", "$JS.API.DIRECT.GET.ASSIGNMENTS.mesh.assignment.two.shop", "mesh.mod.shop.event.order.placed", "mesh.seat.telegram-sender.accept.send"] }
subscribe: { allow: ["$SRV.INFO", "$SRV.INFO.shop", "$SRV.INFO.shop.>", "$SRV.PING", "$SRV.PING.shop", "$SRV.PING.shop.>", "$SRV.STATS", "$SRV.STATS.shop", "$SRV.STATS.shop.>", "_INBOX.two.shop.>", "mesh.assignment.two.shop", "mesh.mod.shop.tool.>"] }
subscribe: { allow: ["_INBOX.two.shop.>", "mesh.assignment.two.shop", "mesh.mod.shop.tool.>"] }
allow_responses: { max: 1, ttl: "1m" }
} }
]
-25
View File
@@ -33,10 +33,6 @@ type Declared struct {
Watches []Seat
// Invokes are the tools it calls, `<module>.<tool>` or `*` (novox/hq ADR 0152).
Invokes []string
// State is the state it keeps, each a bucket its instances write (novox/hq ADR 0201).
State []Bucket
// Reads are other modules' state it reads, each `<module>.<name>` (novox/hq ADR 0201).
Reads []string
}
// Records is what composing a user list needs to know about the mesh, and nothing more.
@@ -66,32 +62,11 @@ func Users(r Records) ([]Principal, error) {
for _, node := range sortedCopy(r.Nodes) {
out = append(out, Principal{Kind: KindNode, Node: node})
// **Where the runtime is assigned, the machine gets one runtime principal in place of the
// runtime module's own** (novox/hq ADR 0175, to-be 38). It carries every module on the
// node: its serving grants are the union of theirs. Every other module keeps its own
// principal — a module still serving tools from its own container holds its own
// credential until it moves, and the two serve side by side in the meantime.
runtimeHere := false
for _, d := range r.Assigned[node] {
if d.Module == RuntimeModule {
runtimeHere = true
}
}
for _, d := range r.Assigned[node] {
if runtimeHere && d.Module == RuntimeModule {
continue
}
out = append(out, Principal{
Kind: KindModule, Node: node, Module: d.Module,
Emits: d.Emits, Consumes: d.Consumes, Serves: d.Serves,
Holds: d.Holds, Uses: d.Uses, Watches: d.Watches, Invokes: d.Invokes,
State: stateNames(d.State), Reads: d.Reads,
})
}
if runtimeHere {
out = append(out, Principal{
Kind: KindNodeTools, Node: node, Module: RuntimeModule,
Carries: append([]Declared(nil), r.Assigned[node]...),
})
}
}
-51
View File
@@ -245,54 +245,3 @@ func TestAUserListIsComposedBeforeAnythingMovesOntoTheBus(t *testing.T) {
t.Errorf("the composed list does not contain the machine running the bus")
}
}
// Where the runtime module is assigned, the machine gets one runtime principal in place of the
// runtime module's own (novox/hq ADR 0175, to-be 38). Every other module keeps its own: a module
// still serving tools from its own container holds its own credential until it moves.
func TestTheRuntimeModuleBecomesTheMachinesRuntimePrincipal(t *testing.T) {
r := someRecords()
r.Assigned["one"] = append(r.Assigned["one"], Declared{Module: RuntimeModule})
users, err := Users(r)
if err != nil {
t.Fatal(err)
}
var runtime *Principal
for i := range users {
p := &users[i]
if p.Node == "one" && p.Module == RuntimeModule {
if p.Kind == KindModule {
t.Fatalf("%s on one was composed as an ordinary module beside the runtime", RuntimeModule)
}
runtime = p
}
}
if runtime == nil || runtime.Kind != KindNodeTools {
t.Fatalf("one runs %s and got no runtime principal: %v", RuntimeModule, namesOf(t, r))
}
if runtime.Username() != "one."+RuntimeModule {
t.Errorf("the runtime is named %q; `module issue` names it as the module it stands for", runtime.Username())
}
carried := map[string]bool{}
for _, d := range runtime.Carries {
carried[d.Module] = true
}
if !carried["telegram"] || !carried[RuntimeModule] {
t.Errorf("the runtime carries %v; it carries every module on its node", carried)
}
// And the other node, where the runtime is not assigned, is exactly as before.
for _, p := range users {
if p.Node == "two" && p.Kind == KindNodeTools {
t.Fatal("two runs no runtime and was given a runtime principal")
}
}
// A module serving its own tools beside the runtime keeps its own principal.
found := false
for _, p := range users {
if p.Kind == KindModule && p.Node == "one" && p.Module == "telegram" {
found = true
}
}
if !found {
t.Error("telegram lost its own principal when the runtime arrived on its node")
}
}
-167
View File
@@ -1,167 +0,0 @@
package broker
import (
"os"
"testing"
"time"
"github.com/nats-io/nats.go"
)
// A seat's worker that changed from push to pull delivery strands a holder built for the new shape
// (novox/hq issue 206): the server refuses a pull subscription on a push consumer, and the controller
// that would redefine it was the build that nobody could take. The controller owns the worker's
// shape, type included: on a work queue it re-makes one of the wrong type, losing nothing, and a
// pull subscription then binds and takes what was pending.
//
// docker run -d --rm --name t -p 14231:4222 nats:2.10-alpine -js
// MESH_TEST_NATS=nats://127.0.0.1:14231 go test ./internal/broker/ -run TestAWorker
func TestAWorkerOfTheWrongTypeIsRemadeOnAWorkQueueAndAPullThenBinds(t *testing.T) {
url := os.Getenv("MESH_TEST_NATS")
if url == "" {
t.Skip("MESH_TEST_NATS unset")
}
js, err := Dial(url)
if err != nil {
t.Fatal(err)
}
defer js.Close()
const stream, worker, filter = "SEAT_T_SHELF", "SEAT_T_SHELF_worker", "mesh.seat.t-shelf.accept.>"
_ = js.js.DeleteStream(stream)
if _, err := js.js.AddStream(&nats.StreamConfig{
Name: stream, Subjects: []string{filter}, Retention: nats.WorkQueuePolicy, Storage: nats.MemoryStorage,
}); err != nil {
t.Fatal(err)
}
defer func() { _ = js.js.DeleteStream(stream) }()
// The worker as the previous controller defined it: push, in a queue group.
if _, err := js.js.AddConsumer(stream, &nats.ConsumerConfig{
Durable: worker, AckPolicy: nats.AckExplicitPolicy, AckWait: 60 * time.Second, MaxDeliver: 5,
FilterSubject: filter, DeliverSubject: "_DELIVER." + worker, DeliverGroup: "holders",
}); err != nil {
t.Fatal(err)
}
for _, body := range []string{"one", "two", "three"} {
if _, err := js.js.Publish("mesh.seat.t-shelf.accept.build", []byte(body)); err != nil {
t.Fatal(err)
}
}
// The old holder took and acknowledged the first ask, then went away.
old, err := js.js.QueueSubscribeSync(filter, "holders", nats.Bind(stream, worker))
if err != nil {
t.Fatal(err)
}
m, err := old.NextMsg(twoSeconds)
if err != nil {
t.Fatal(err)
}
if string(m.Data) != "one" {
t.Fatalf("the first ask is %q", m.Data)
}
if err := m.AckSync(); err != nil {
t.Fatal(err)
}
if err := old.Unsubscribe(); err != nil {
t.Fatal(err)
}
// The new controller asserts the worker as the mesh derives it now: pull.
if err := js.EnsureConsumer(Consumer{
Name: worker, Stream: stream, Filters: []string{filter}, AckWaitSeconds: 60, MaxDeliver: 5,
Why: "the test's worker",
}); err != nil {
t.Fatal(err)
}
have, err := js.js.ConsumerInfo(stream, worker)
if err != nil {
t.Fatal(err)
}
if have.Config.DeliverSubject != "" || have.Config.DeliverGroup != "" {
t.Fatalf("the worker is still push: %+v", have.Config)
}
// A holder built for the new shape binds, and takes exactly what the old one left.
sub, err := js.js.PullSubscribe(filter, worker, nats.Bind(stream, worker), nats.ManualAck())
if err != nil {
t.Fatalf("a pull subscription does not bind the re-made worker: %v", err)
}
got, err := sub.Fetch(3, nats.MaxWait(twoSeconds))
if err != nil && len(got) == 0 {
t.Fatalf("nothing pending was delivered: %v", err)
}
var bodies []string
for _, g := range got {
bodies = append(bodies, string(g.Data))
_ = g.Ack()
}
if len(bodies) != 2 || bodies[0] != "two" || bodies[1] != "three" {
t.Fatalf("the pending asks after the acknowledged one, in order: %v", bodies)
}
// Asserted again, the pull worker is the no-op a restart depends on.
if err := js.EnsureConsumer(Consumer{
Name: worker, Stream: stream, Filters: []string{filter}, AckWaitSeconds: 60, MaxDeliver: 5,
}); err != nil {
t.Fatal(err)
}
}
// On a stream that keeps its history, a worker of the wrong type is re-made to deliver from now on:
// re-making it from the start would replay what it acknowledged (novox/hq issue 156), and leaving it
// for a hand re-made it exactly that way on 2026-10-03 (issue 207).
func TestAWorkerOfTheWrongTypeOnAHistoryStreamIsRemadeFromNowOn(t *testing.T) {
url := os.Getenv("MESH_TEST_NATS")
if url == "" {
t.Skip("MESH_TEST_NATS unset")
}
js, err := Dial(url)
if err != nil {
t.Fatal(err)
}
defer js.Close()
const stream, worker, filter = "EVENTS_T", "EVENTS_T_reader", "mesh.t.event.>"
_ = js.js.DeleteStream(stream)
if _, err := js.js.AddStream(&nats.StreamConfig{Name: stream, Subjects: []string{filter}, Storage: nats.MemoryStorage}); err != nil {
t.Fatal(err)
}
defer func() { _ = js.js.DeleteStream(stream) }()
if _, err := js.js.AddConsumer(stream, &nats.ConsumerConfig{
Durable: worker, AckPolicy: nats.AckExplicitPolicy, AckWait: 60 * time.Second,
FilterSubject: filter, DeliverSubject: "_DELIVER." + worker,
}); err != nil {
t.Fatal(err)
}
// History the old consumer would have acknowledged long ago, and must not come back.
for i := 0; i < 3; i++ {
if _, err := js.js.Publish("mesh.t.event.old", []byte("old")); err != nil {
t.Fatal(err)
}
}
if err := js.EnsureConsumer(Consumer{Name: worker, Stream: stream, Filters: []string{filter}, AckWaitSeconds: 60}); err != nil {
t.Fatal(err)
}
have, err := js.js.ConsumerInfo(stream, worker)
if err != nil {
t.Fatal(err)
}
if have.Config.DeliverSubject != "" {
t.Fatal("a history stream's consumer of the wrong type was left as it was")
}
if have.Config.DeliverPolicy != nats.DeliverNewPolicy || have.NumPending != 0 {
t.Fatalf("re-made consumer delivers %v with %d pending; it must deliver from now on with nothing of the past", have.Config.DeliverPolicy, have.NumPending)
}
// And what arrives from now on is delivered.
if _, err := js.js.Publish("mesh.t.event.new", []byte("new")); err != nil {
t.Fatal(err)
}
sub, err := js.js.PullSubscribe(filter, worker, nats.Bind(stream, worker))
if err != nil {
t.Fatal(err)
}
got, err := sub.Fetch(1, nats.MaxWait(3*time.Second))
if err != nil || len(got) != 1 || string(got[0].Data) != "new" {
t.Fatalf("the re-made consumer delivered %v, %v; want the one new message", got, err)
}
}
+3 -177
View File
@@ -215,7 +215,7 @@ func Build(ctx context.Context, run Runner, publish Publisher,
sort.Slice(artifacts, func(i, j int) bool { return artifacts[i].Name < artifacts[j].Name })
for _, a := range artifacts {
say("artifact", "%s (%s%s) — starting", a.Name, a.Kind, langSuffix(a))
made, err := one(ctx, run, publish, manifest.Module, within, workspace, commit, credentials, a, args, held, npmrcPath, npmrc, seatBases, say)
made, err := one(ctx, run, publish, manifest.Module, within, workspace, commit, credentials, a, args, held, npmrcPath, seatBases, say)
if err != nil {
say("artifact", "%s FAILED: %v", a.Name, err)
return Result{}, err
@@ -443,7 +443,7 @@ func wantsPackages(manifest catalogue.Manifest, within string) bool {
func one(ctx context.Context, run Runner, publish Publisher,
module, tree, workspace, commit, credentials string, a catalogue.Artifact, args []string,
held map[string]string, npmrc string, registry Npmrc, seats map[string]string,
held map[string]string, npmrc string, seats map[string]string,
say func(step, format string, args ...any)) (catalogue.Built, error) {
switch a.Kind {
@@ -582,28 +582,11 @@ func one(ctx context.Context, run Runner, publish Publisher,
"holds no copy of it. Build %s first",
module, a.Name, chain.Language, chain.Base, chain.Artifact, chain.Base)
}
// The module's own packages first, where the compiler and the bundler resolve them from
// (dependencies.go); nothing at all for a module whose package.json names only the SDK.
if err := installOwn(ctx, run, tree, chain, base, registry, say); err != nil {
return catalogue.Built{}, fmt.Errorf("%s: %s: %w", module, a.Name, err)
}
say("bundle", "compiling %s in %s's toolchain", a.Language, chain.Base)
compiled, err := compile(ctx, run, tree, chain, base, a)
if err != nil {
return catalogue.Built{}, fmt.Errorf("%s: compiling %s failed: %w", module, a.Name, err)
}
// **Every entrypoint the runtime may serve is executable** (novox/hq ADR 0193). The runtime
// knows no language; for one that runs through an interpreter the build writes the launcher.
launchers, err := writeLaunchers(compiled, chain, a)
if err != nil {
return catalogue.Built{}, fmt.Errorf("%s: writing %s's launchers failed: %w", module, a.Name, err)
}
if chain.Bundler != "" {
say("bundle", "bundling each entrypoint into one file")
if compiled, err = bundled(ctx, run, tree, chain, base, a, launchers); err != nil {
return catalogue.Built{}, fmt.Errorf("%s: bundling %s failed: %w", module, a.Name, err)
}
}
say("bundle", "compiled, packing")
body, err := pack(compiled)
if err != nil {
@@ -615,7 +598,7 @@ func one(ctx context.Context, run Runner, publish Publisher,
if err != nil {
return catalogue.Built{}, err
}
return catalogue.Built{Name: a.Name, Kind: a.Kind, Reference: where, Digest: digest, Launchers: launchers}, nil
return catalogue.Built{Name: a.Name, Kind: a.Kind, Reference: where, Digest: digest}, nil
case catalogue.ArtifactPackage:
// Built and published on a public base, to the mesh's package registry, by version
@@ -985,26 +968,6 @@ func compile(ctx context.Context, run Runner, tree string, chain Toolchain,
if _, err := run(ctx, tree, "docker", invocation...); err != nil {
return "", err
}
if chain.Dependencies != "" && chain.Bundler == "" {
// **What the bundle runs with, from the image it was compiled in** (Toolchain.Dependencies).
// A second run in the same image rather than a shell wrapped around the compiler: the
// compile line stays a plain command a reader can run by hand, and the copy is one more
// plain command beside it. Refused by name when the image carries no such directory — an
// older toolchain image — because a bundle packed without its dependencies starts nowhere
// and says so three layers away from here.
copying := []string{
"run", "--rm",
"--volume", tree + ":" + within,
"--workdir", within,
base,
"sh", "-c",
`test -d "$1" || { echo "the toolchain image carries no $1: it predates the mesh shipping a bundle's dependencies, rebuild $2 first" >&2; exit 1; }; cp -a "$1/." "$3/"`,
"dependencies", chain.Dependencies, chain.Base, out,
}
if _, err := run(ctx, tree, "docker", copying...); err != nil {
return "", fmt.Errorf("copying the %s dependencies a bundle runs with: %w", chain.Language, err)
}
}
return filepath.Join(tree, out), nil
}
@@ -1182,9 +1145,6 @@ func readBy(manifest catalogue.Manifest) []catalogue.ArtifactContext {
// binaryName is what a compiled bundle's executable is called: what the artifact says, or the name of
// the package it is built from, which is what a compiler would have chosen anyway.
func binaryName(a catalogue.Artifact) string {
if name := catalogue.BinaryOf(a); name != "" {
return name
}
if name := strings.TrimSpace(a.Binary); name != "" {
return name
}
@@ -1193,137 +1153,3 @@ func binaryName(a catalogue.Artifact) string {
}
return a.Name
}
// launcherSuffix is what a TypeScript entrypoint's launcher is called beside it: index.js is
// started as index.serve.mjs (novox/hq ADR 0193). An ES module by its own extension, whatever the
// bundle's package.json says.
const launcherSuffix = ".serve.mjs"
// writeLaunchers writes, beside every entrypoint of a TypeScript bundle, an executable that
// imports the entrypoint and serves what it registered over MCP on stdio — through the bundle's
// own copy of the SDK, so registering and serving meet in one registry (novox/hq ADR 0193). Its
// answer is each entrypoint's launcher, by entrypoint, relative to the bundle's root; nothing for
// a language whose build is already executable.
func writeLaunchers(root string, chain Toolchain, a catalogue.Artifact) (map[string]string, error) {
if chain.Language != "typescript" {
return nil, nil
}
out := map[string]string{}
for _, entry := range a.Entrypoints {
if !strings.HasSuffix(entry, ".js") {
continue
}
launcher := strings.TrimSuffix(entry, ".js") + launcherSuffix
body := "#!/usr/bin/env node\n" +
"// Written by the mesh's builder (novox/hq ADR 0193): serve what " + entry + " registers,\n" +
"// over MCP on stdio, as the module the node's runtime names in MESH_SERVED_MODULE.\n" +
"import { serveRegisteredOverStdio } from \"@novox/mesh-sdk/stdio\";\n" +
"await import(\"./" + filepath.Base(entry) + "\");\n" +
"await serveRegisteredOverStdio();\n"
path := filepath.Join(root, filepath.FromSlash(launcher))
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
return nil, err
}
if err := os.WriteFile(path, []byte(body), 0o755); err != nil {
return nil, err
}
// WriteFile honours the umask; the mode a machine unpacks is the one packed, so it is set.
if err := os.Chmod(path, 0o755); err != nil {
return nil, err
}
out[entry] = launcher
}
return out, nil
}
// bundledSuffix is where a bundle's one-file output is written, beside what the compiler wrote.
const bundledSuffix = ".bundled"
// bundled makes every entrypoint and every launcher of a compiled bundle ONE file, in the toolchain
// image's bundler, and answers the directory to pack (novox/hq ADR 0193).
//
// **What a launched bundle runs is what it imports, and nothing else.** Every served bundle is its
// own process, so it carries its own copy of the SDK and its own dependencies inlined — the
// toolchain's whole node_modules no longer travels in every bundle. An entrypoint a process runs by
// name (`node daemon/index.js`) is bundled in place under its own name; a launcher keeps its name
// and its first line, and stays executable. A package the bundler cannot inline is named by the
// artifact (`external`), kept as an import, and only then is the toolchain's runtime directory
// copied beside the files. CommonJS inlined into an ES module still finds `require`.
func bundled(ctx context.Context, run Runner, tree string, chain Toolchain, base string,
a catalogue.Artifact, launchers map[string]string) (string, error) {
const within = "/app/modules/module"
out, final := Out(a.Name), Out(a.Name)+bundledSuffix
if err := os.RemoveAll(filepath.Join(tree, final)); err != nil {
return "", err
}
if err := os.MkdirAll(filepath.Join(tree, final), 0o755); err != nil {
return "", err
}
common := []string{"--bundle", "--platform=node", "--format=esm", "--target=node22",
"--outbase=" + out, "--outdir=" + final, "--log-level=warning",
"--banner:js=import { createRequire as __meshRequire } from 'node:module'; const require = __meshRequire(import.meta.url);"}
for _, x := range a.External {
common = append(common, "--external:"+x)
}
var plain []string
for _, e := range a.Entrypoints {
if strings.HasSuffix(e, ".js") {
plain = append(plain, out+"/"+e)
}
}
var launch []string
for _, l := range sortedValues(launchers) {
launch = append(launch, out+"/"+l)
}
// Refused by name in an image that predates the bundler, as the dependencies copy is: a bundle
// packed without it would carry nothing it imports. Run as itself: npm installs esbuild's native
// binary in place of its script, which `node` cannot run.
guard := `test -x "$0" || { echo "the toolchain image carries no bundler at $0: it predates one-file bundles, rebuild mesh-tools first" >&2; exit 1; }; exec "$0" "$@"`
step := func(entries []string, extra ...string) error {
if len(entries) == 0 {
return nil
}
invocation := []string{"run", "--rm", "--volume", tree + ":" + within, "--workdir", within, base,
"sh", "-c", guard, chain.Bundler}
invocation = append(invocation, entries...)
invocation = append(invocation, common...)
invocation = append(invocation, extra...)
_, err := run(ctx, tree, "docker", invocation...)
return err
}
if err := step(plain); err != nil {
return "", err
}
if err := step(launch, "--out-extension:.js=.mjs"); err != nil {
return "", err
}
// Plain `.js` output is an ES module; said once, as the runtime directory used to say it.
if err := os.WriteFile(filepath.Join(tree, final, "package.json"), []byte(`{"type":"module","private":true}`+"\n"), 0o644); err != nil {
return "", err
}
for _, l := range launchers {
path := filepath.Join(tree, final, filepath.FromSlash(l))
if _, err := os.Stat(path); err == nil {
if err := os.Chmod(path, 0o755); err != nil {
return "", err
}
}
}
if len(a.External) > 0 && chain.Dependencies != "" {
copying := []string{"run", "--rm", "--volume", tree + ":" + within, "--workdir", within, base,
"sh", "-c", `cp -a "$0/node_modules" "$1/"`, chain.Dependencies, final}
if _, err := run(ctx, tree, "docker", copying...); err != nil {
return "", fmt.Errorf("copying the packages %s keeps external: %w", a.Name, err)
}
}
return filepath.Join(tree, final), nil
}
func sortedValues(m map[string]string) []string {
out := make([]string, 0, len(m))
for _, v := range m {
out = append(out, v)
}
sort.Strings(out)
return out
}
+1 -64
View File
@@ -82,65 +82,6 @@ func TestABundleIsCompiledAndPackedWithNoDockerfile(t *testing.T) {
if !strings.HasPrefix(digest, "sha256:") {
t.Fatalf("the bundle was not pinned: %v", got.Manifest.Resources[0])
}
// **One file per entrypoint and launcher, in the toolchain's bundler** (novox/hq ADR 0193). A
// second run in the same toolchain image bundles each into the artifact's bundled output, the SDK
// inlined, refusing by name in an image that predates the bundler; and the toolchain's
// node_modules is no longer copied into a bundle that keeps nothing external.
var bundling []string
for _, line := range r.ran {
if strings.HasPrefix(line, "docker run") && strings.Contains(line, "esbuild") {
bundling = append(bundling, line)
}
}
if len(bundling) != 2 {
t.Fatalf("want one bundling run for the entrypoints and one for the launchers:\n%s", strings.Join(r.ran, "\n"))
}
for _, want := range []string{"mesh-tools/build@sha256:", "predates one-file bundles", "--bundle", "--format=esm",
"--platform=node", "--outdir=" + Out("code") + ".bundled", Out("code") + "/index.js"} {
if !strings.Contains(bundling[0], want) {
t.Errorf("the entrypoints' bundling lacks %q: %s", want, bundling[0])
}
}
if !strings.Contains(bundling[1], Out("code")+"/index.serve.mjs") || !strings.Contains(bundling[1], "--out-extension:.js=.mjs") {
t.Errorf("the launcher is not bundled under its own name: %s", bundling[1])
}
if strings.Contains(strings.Join(r.ran, "\n"), "/app/runtime") {
t.Errorf("the toolchain's node_modules was copied into a bundle that keeps nothing external:\n%s", strings.Join(r.ran, "\n"))
}
if strings.Index(strings.Join(r.ran, "\n"), "--outDir") > strings.Index(strings.Join(r.ran, "\n"), "esbuild") {
t.Fatal("the bundler ran before the compile wrote its output")
}
}
// A bundle naming packages it keeps external is bundled with them as imports, and carries the
// toolchain's node_modules for them — the one case it still does.
func TestABundleKeepingAPackageExternalCarriesTheToolchainsModules(t *testing.T) {
manifest := strings.Replace(aBundle, `"entrypoints":["index.js"]`, `"entrypoints":["index.js"],"external":["sharp"]`, 1)
r, workspace := aRepository(t, manifest, map[string]string{"index.ts": "console.log(1)"})
held := map[string]string{"mesh-tools/build": "registry.invalid/mesh-tools/build@sha256:" + strings.Repeat("b", 64)}
if _, err := Build(context.Background(), compiling{r}.run, r,
"https://forge.invalid/greeter.git", "", "", workspace, held, Npmrc{}, GitCredential{}, nil); err != nil {
t.Fatal(err)
}
all := strings.Join(r.ran, "\n")
if !strings.Contains(all, "--external:sharp") || !strings.Contains(all, "/app/runtime") {
t.Errorf("an external package was not kept as an import with the toolchain's modules beside it:\n%s", all)
}
}
// A language whose bundle carries its own dependencies copies nothing in: a Go binary is static.
func TestOnlyALanguageWithARuntimeDirectoryCopiesDependenciesIn(t *testing.T) {
ts, _ := ToolchainFor("typescript")
if ts.Dependencies != "/app/runtime" {
t.Fatalf("typescript bundles run with %q", ts.Dependencies)
}
for _, language := range []string{"go", "python"} {
chain, _ := ToolchainFor(language)
if chain.Dependencies != "" {
t.Fatalf("%s copies %q into every bundle, and its bundles carry their own", language, chain.Dependencies)
}
}
}
// **Refused before anything is built, naming what to build first.** A base the mesh has not built
@@ -204,13 +145,9 @@ func TestTwoBundlesInOneModuleArePackedSeparately(t *testing.T) {
t.Fatalf("a module with two bundles did not build: %v", err)
}
// Compiled into two different places. Only the compile lines: the copy of each bundle's
// dependencies names the same directory again, deliberately.
// Compiled into two different places.
var outputs []string
for _, line := range r.ran {
if !strings.Contains(line, "--outDir") {
continue
}
for _, part := range strings.Fields(line) {
if strings.HasPrefix(part, ".mesh-build/") {
outputs = append(outputs, part)
-147
View File
@@ -1,147 +0,0 @@
package builder
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"path/filepath"
"sort"
"strings"
)
// A module's own packages, installed before its bundle is compiled, so the bundler inlines them.
//
// **A bundle could only import what the toolchain happened to carry.** The compiler and the bundler
// resolve an import by walking up from the module's source: the module's own directory first, then
// the toolchain image's node_modules. Nothing ever put anything in the first, so a module needing a
// database driver (`pg`, `mongodb`, `mssql`) could not be a bundle at all, and kept a container whose
// recipe installed it by hand (novox/hq ADR 0198 §4: "the backend's own driver inside the bundle").
// Now the module's `package.json` says what it depends on, as any Node package does, and the build
// installs exactly that into the module's own directory before compiling.
//
// **The SDK the toolchain carries is the one a bundle is built with, whatever the module says**
// (novox/hq issue 212: the toolchain is rebuilt on every SDK release and every bundle after it). A
// module's `package.json` names `@novox/mesh-sdk` with a range — it has to, to type-check on a
// workstation — and installing that range would shadow the toolchain's copy for this module alone:
// one module compiled against an older SDK than its neighbours, chosen by a caret nobody re-reads.
// So the SDK is taken out of what is installed (and never fetched), and any copy something else
// pulls in is removed afterwards; every import of it resolves past the module's node_modules to the
// toolchain's. A module therefore cannot pin a different SDK, by design: the toolchain is the pin.
//
// **Correctness before speed.** Every build installs afresh into a fresh clone, from the lockfile
// when the module has one (`npm ci`, exact) and from its ranges otherwise; nothing installed is kept
// between builds. What is shared is npm's own download cache, a named volume, which is
// content-addressed and verified by integrity on every read — it saves the network, never the
// install. Install scripts do not run: the build node runs nobody's postinstall, and what a script
// would build natively could not be inlined into one file anyway.
// sdkPackage is the package a TypeScript bundle's launcher serves through, and the one package a
// module's own dependencies never supply (above).
const sdkPackage = "@novox/mesh-sdk"
// npmCache is the named volume npm's download cache lives in across builds on one build node.
const npmCache = "mesh-builder-npm-cache"
// ownDependencies is what a module's package.json depends on beyond the SDK, sorted; nothing when
// the module has no package.json or depends on nothing else — which builds exactly as before.
func ownDependencies(tree string) ([]string, error) {
raw, err := os.ReadFile(filepath.Join(tree, "package.json"))
if errors.Is(err, os.ErrNotExist) {
return nil, nil
}
if err != nil {
return nil, err
}
var p struct {
Dependencies map[string]string `json:"dependencies"`
}
if err := json.Unmarshal(raw, &p); err != nil {
return nil, fmt.Errorf("the module's package.json is not JSON: %w", err)
}
var names []string
for name := range p.Dependencies {
if name != sdkPackage {
names = append(names, name)
}
}
sort.Strings(names)
return names, nil
}
// installSteps is the script run inside the toolchain image, from the module's own directory ($0).
// It works in a scratch copy so the module's package.json and lockfile are never rewritten, takes
// the SDK out of what is installed, installs production dependencies only, removes any copy of the
// SDK something pulled in, and puts the result at the module's node_modules.
const installSteps = `set -e
work="$(mktemp -d)"
cp "$0/package.json" "$work/"
if [ -f "$0/package-lock.json" ]; then cp "$0/package-lock.json" "$work/"; fi
cd "$work"
node -e '
const fs = require("fs"), sdk = process.argv[1];
const p = JSON.parse(fs.readFileSync("package.json", "utf8"));
for (const k of ["dependencies", "peerDependencies", "optionalDependencies"]) if (p[k]) delete p[k][sdk];
delete p.devDependencies; delete p.scripts;
fs.writeFileSync("package.json", JSON.stringify(p));
' "$1"
shift
if [ -f package-lock.json ]; then
npm ci --omit=dev --omit=peer --ignore-scripts --no-audit --no-fund "$@"
else
npm install --omit=dev --omit=peer --ignore-scripts --no-audit --no-fund --no-package-lock "$@"
fi
find node_modules -depth -type d -path "*/node_modules/@novox/mesh-sdk" -exec rm -rf {} +
rm -rf "$0/node_modules"
cp -a node_modules "$0/node_modules"
`
// installOwn installs a TypeScript module's own production dependencies into its directory, in the
// toolchain image, before the compile — or does nothing at all for a module that has none.
func installOwn(ctx context.Context, run Runner, tree string, chain Toolchain, base string,
registry Npmrc, say func(step, format string, args ...any)) error {
if chain.Language != "typescript" {
return nil
}
deps, err := ownDependencies(tree)
if err != nil || len(deps) == 0 {
return err
}
scoped := strings.TrimSpace(registry.Scope)
if !registry.Enabled() {
// **No registry, no scoped package.** Without the mesh's registry a scoped name resolves on
// the public one, where anybody may have published it: a dependency that installs is not
// the dependency the module meant.
for _, d := range deps {
if strings.HasPrefix(d, "@novox/") {
return fmt.Errorf("the module depends on %s, and this build knows no package registry "+
"for its scope; it would resolve from the public registry, which is not where the "+
"mesh publishes it", d)
}
}
}
const within = "/app/modules/module"
invocation := []string{"run", "--rm",
"--volume", tree + ":" + within,
"--volume", npmCache + ":/root/.npm",
"--workdir", within}
var flags []string
if registry.Enabled() {
// The registry is reached where the binding says it is, which may be this machine's own
// loopback — the reason an image build that resolves packages runs on the host network too.
invocation = append(invocation, "--network", "host")
reg := strings.TrimSpace(registry.Registry)
if !strings.HasSuffix(reg, "/") {
reg += "/"
}
flags = append(flags, "--"+scoped+":registry="+reg)
}
invocation = append(invocation, base, "sh", "-c", installSteps, within, sdkPackage)
invocation = append(invocation, flags...)
say("bundle", "installing the module's own packages: %s", strings.Join(deps, ", "))
if _, err := run(ctx, tree, "docker", invocation...); err != nil {
return fmt.Errorf("installing the module's own packages (%s): %w", strings.Join(deps, ", "), err)
}
return nil
}
-131
View File
@@ -1,131 +0,0 @@
package builder
import (
"context"
"strings"
"testing"
)
// A module's own packages (dependencies.go): installed into its own directory, in the toolchain,
// before the compile, so the bundler inlines them — the SDK always the toolchain's.
func buildWithPackageJSON(t *testing.T, pkg string, extra map[string]string, registry Npmrc) (*recorded, error) {
t.Helper()
files := map[string]string{"index.ts": "console.log(1)"}
if pkg != "" {
files["package.json"] = pkg
}
for k, v := range extra {
files[k] = v
}
r, workspace := aRepository(t, aBundle, files)
held := map[string]string{"mesh-tools/build": "registry.invalid/mesh-tools/build@sha256:" + strings.Repeat("b", 64)}
_, err := Build(context.Background(), compiling{r}.run, r,
"https://forge.invalid/greeter.git", "", "", workspace, held, registry, GitCredential{}, nil)
return r, err
}
func installs(r *recorded) []string {
var out []string
for _, line := range r.ran {
if strings.HasPrefix(line, "docker run") && strings.Contains(line, "npm ci") {
out = append(out, line)
}
}
return out
}
func compileIndex(r *recorded) int {
for i, line := range r.ran {
if strings.Contains(line, "--outDir") {
return i
}
}
return -1
}
func TestAModulesOwnPackagesAreInstalledInTheToolchainBeforeTheCompile(t *testing.T) {
r, err := buildWithPackageJSON(t, `{"type":"module","dependencies":{"@novox/mesh-sdk":"^0.1.0","pg":"^8"},"devDependencies":{"typescript":"^5"}}`,
nil, Npmrc{Scope: "@novox", Registry: "https://forge.invalid/api/packages/novox/npm"})
if err != nil {
t.Fatal(err)
}
got := installs(r)
if len(got) != 1 {
t.Fatalf("want one install of the module's own packages:\n%s", strings.Join(r.ran, "\n"))
}
line := got[0]
for _, want := range []string{
"mesh-tools/build@sha256:", // in the toolchain image
":/app/modules/module", // into the module's own directory
"--workdir /app/modules/module", //
npmCache + ":/root/.npm", // npm's verified download cache, and only that
"--omit=dev", "--ignore-scripts", // production packages, no build-node scripts
"npm ci", "npm install", "--no-package-lock", // the lockfile when there is one, else the ranges
"--@novox:registry=https://forge.invalid/api/packages/novox/npm/", // the scope from the mesh's registry
"--network host",
"@novox/mesh-sdk", // named, to be taken out of what is installed
} {
if !strings.Contains(line, want) {
t.Errorf("the install lacks %q:\n%s", want, line)
}
}
// The SDK is the toolchain's: never installed from the module's range, and any copy removed.
if !strings.Contains(line, `delete p[k][sdk]`) || !strings.Contains(line, `-path "*/node_modules/@novox/mesh-sdk" -exec rm -rf`) {
t.Errorf("the module's own SDK range could shadow the toolchain's SDK:\n%s", line)
}
if i, c := strings.Index(strings.Join(r.ran, "\n"), "npm ci"), compileIndex(r); c < 0 ||
i > strings.Index(strings.Join(r.ran, "\n"), "--outDir") {
t.Fatalf("the install did not run before the compile:\n%s", strings.Join(r.ran, "\n"))
}
}
// **A module with nothing beyond the SDK builds exactly as before**: the same commands, no install.
func TestAModuleDependingOnlyOnTheSDKBuildsExactlyAsBefore(t *testing.T) {
without, err := buildWithPackageJSON(t, "", nil, Npmrc{})
if err != nil {
t.Fatal(err)
}
for _, pkg := range []string{
`{"type":"module","dependencies":{"@novox/mesh-sdk":"^0.1.0"},"devDependencies":{"typescript":"^5"}}`,
`{"type":"module"}`,
} {
with, err := buildWithPackageJSON(t, pkg, map[string]string{"package-lock.json": "{}"}, Npmrc{Scope: "@novox", Registry: "https://forge.invalid/npm/"})
if err != nil {
t.Fatal(err)
}
if strings.Contains(strings.Join(with.ran, "\n"), "npm ") {
t.Fatalf("a module depending on nothing but the SDK ran npm:\n%s", strings.Join(with.ran, "\n"))
}
if len(with.ran) != len(without.ran) {
t.Fatalf("a module depending only on the SDK built differently from one with no package.json:\n%s\n---\n%s",
strings.Join(with.ran, "\n"), strings.Join(without.ran, "\n"))
}
}
}
// Without the mesh's registry a scoped package would resolve on the public one: refused by name.
func TestAScopedPackageWithNoRegistryIsRefused(t *testing.T) {
r, err := buildWithPackageJSON(t, `{"dependencies":{"@novox/mesh-sdk":"^0.1.0","@novox/other":"^1"}}`, nil, Npmrc{})
if err == nil || !strings.Contains(err.Error(), "@novox/other") {
t.Fatalf("a scoped package was installed with no registry for its scope: %v", err)
}
if strings.Contains(strings.Join(r.ran, "\n"), "--outDir") {
t.Fatal("the compile ran after the refusal")
}
// A public package installs without one, from the public registry and nothing else.
r, err = buildWithPackageJSON(t, `{"dependencies":{"mssql":"^11"}}`, nil, Npmrc{})
if err != nil {
t.Fatal(err)
}
if got := installs(r); len(got) != 1 || strings.Contains(got[0], ":registry=") || strings.Contains(got[0], "--network host") {
t.Fatalf("a public package's install: %v", got)
}
}
func TestAnUnreadablePackageJSONIsRefusedByName(t *testing.T) {
_, err := buildWithPackageJSON(t, `{"dependencies":`, nil, Npmrc{})
if err == nil || !strings.Contains(err.Error(), "package.json") {
t.Fatalf("a broken package.json was not refused by name: %v", err)
}
}
-49
View File
@@ -1,49 +0,0 @@
package builder
import (
"os"
"path/filepath"
"strings"
"testing"
"github.com/novox/mesh-controller/internal/catalogue"
)
// novox/hq ADR 0193: every entrypoint the runtime may serve is executable, and the runtime knows no
// language — so a TypeScript bundle carries a launcher beside each entrypoint.
func TestATypeScriptBundleCarriesAnExecutableLauncherBesideEachEntrypoint(t *testing.T) {
root := t.TempDir()
chain, err := ToolchainFor("typescript")
if err != nil {
t.Fatal(err)
}
got, err := writeLaunchers(root, chain, catalogue.Artifact{Name: "tools", Kind: catalogue.ArtifactBundle,
Language: "typescript", Entrypoints: []string{"tools/index.js", "index.js"}})
if err != nil {
t.Fatal(err)
}
if got["tools/index.js"] != "tools/index.serve.mjs" || got["index.js"] != "index.serve.mjs" {
t.Fatalf("launchers: %v", got)
}
path := filepath.Join(root, "tools", "index.serve.mjs")
info, err := os.Stat(path)
if err != nil {
t.Fatal(err)
}
if info.Mode().Perm() != 0o755 {
t.Errorf("the launcher is %v, not executable 0755", info.Mode().Perm())
}
body, _ := os.ReadFile(path)
for _, want := range []string{"#!/usr/bin/env node\n", `from "@novox/mesh-sdk/stdio"`, `await import("./index.js")`, "serveRegisteredOverStdio()"} {
if !strings.Contains(string(body), want) {
t.Errorf("the launcher lacks %q:\n%s", want, body)
}
}
// A compiled language's build is executable already: no launcher.
goChain, _ := ToolchainFor("go")
none, err := writeLaunchers(t.TempDir(), goChain, catalogue.Artifact{Name: "tools", Kind: catalogue.ArtifactBundle, Language: "go"})
if err != nil || len(none) != 0 {
t.Errorf("a Go bundle was given launchers: %v %v", none, err)
}
}
-20
View File
@@ -200,23 +200,3 @@ func TestWhatABuildReadIsTheRepositoriesItsRecipesName(t *testing.T) {
t.Fatal("a module whose recipes name no other repository read one")
}
}
// novox/hq 04-ISSUES/212: a toolchain stands on the SDK's published package, and is built with the
// exact version the mesh published — an argument that changes when the SDK does, so a rebuild after
// a release never reuses an install of the version before it.
func TestAPackageTheMeshPublishedIsPassedByItsExactVersion(t *testing.T) {
manifest := catalogue.Manifest{
Module: "mesh-tools",
Build: &catalogue.Build{
On: []catalogue.BuildsOn{{Arg: "MESH_SDK", Module: "mesh-sdk", Artifact: "lib"}},
},
}
held := map[string]string{"mesh-sdk/lib": "@novox/mesh-sdk@0.1.6"}
args, resolved, err := standingOn(context.Background(), manifest, held, noMirror)
if err != nil {
t.Fatal(err)
}
if fmt.Sprint(args) != "[--build-arg MESH_SDK=@novox/mesh-sdk@0.1.6]" || fmt.Sprint(resolved) != "[@novox/mesh-sdk@0.1.6]" {
t.Errorf("the package was passed as %v, recorded as %v", args, resolved)
}
}
+1 -36
View File
@@ -57,33 +57,6 @@ type Toolchain struct {
// carrying its debug info. The mistake was believing a comment rather than reading the file it
// produced (novox/hq 04-ISSUES/161).
LinkerFlags []string
// Dependencies is a directory inside the toolchain image whose contents a bundle in this
// language runs with, copied whole into the compiled output's root after the compile.
//
// **A bundle that compiles is not yet a bundle that runs.** The compiler resolves `import
// "nats"` from the toolchain image's own node_modules and the pack takes only what the compiler
// wrote, so what a machine unpacked could not find a single dependency — and no TypeScript bundle
// had ever run live to show it (novox/hq to-be 38 WP3). For TypeScript the directory holds a
// `package.json` saying `"type": "module"` — Node reads a bare `.js` as CommonJS otherwise, so a
// bundle with its dependencies and without that line still fails to start — and the pruned,
// production-only node_modules the runtime itself ships with: the SDK's and the runtime's
// dependencies, and nothing module-specific (a module's own npm dependencies are installed into
// its own directory before the compile and inlined by the bundler: dependencies.go). Empty for a
// language whose bundle carries its own —
// a Go binary is static, a Python bundle is installed with its dependencies.
//
// A toolchain image without the directory fails the build by name rather than packing a bundle
// that starts nowhere: the image predates this and must be rebuilt first.
//
// *Since the bundler (below):* copied only for a bundle that names packages it keeps external,
// which cannot be inlined; a bundle with none carries no node_modules at all.
Dependencies string
// Bundler is the bundler inside the toolchain image that makes each compiled entrypoint and each
// launcher ONE self-contained file (novox/hq ADR 0193): every served bundle is its own process
// now, so each carries its own copy of what it imports — the SDK included — and nothing else.
// A bundle shrinks from the toolchain's whole node_modules to the code it runs. Empty for a
// language whose build is already one file.
Bundler string
// SystemStamp is the variable this language's linker fills with the artifact's declared system,
// for a language whose binaries are pinned to one at link time (novox/hq ADR 0005).
//
@@ -134,22 +107,14 @@ var toolchains = []Toolchain{
// symlinks to a launcher that requires its library relatively — and the base image's own
// assembly resolves them away, leaving a launcher whose relative require points nowhere.
// Every module's hand-written Dockerfile had to know this. Now none of them does.
// **Rooted at the module, so an entrypoint lands where it is named.** Without a root the
// compiler takes the common directory of the files it is given: a module compiling only
// `tools/index.ts` had its output at `index.js`, and the entrypoint it declared —
// `tools/index.js`, "named as it will be found" — named a file the bundle did not
// contain. The runtime that loads bundles by their declared entrypoints (novox/hq ADR
// 0175) is what made this visible.
Compile: []string{
"node", "/app/node_modules/typescript/bin/tsc",
"--module", "NodeNext", "--moduleResolution", "NodeNext",
"--target", "ES2022", "--rootDir", ".",
"--target", "ES2022",
},
OutputFlag: "--outDir",
Unit: UnitSources,
SourceExt: ".ts",
Dependencies: "/app/runtime",
Bundler: "/app/node_modules/esbuild/bin/esbuild",
},
{
Language: "go",
@@ -1,166 +0,0 @@
package catalogue
import (
"encoding/json"
"strings"
"testing"
)
// novox/hq issue 213 (ADR 0188 §1, §3): a module's own Go service is a bundle the host runs as a
// process, not an image. Each test holds one thing that had to change in the composer for the
// controller to be declared that way.
const aServiceDigest = "sha256:dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
// aServiceModule is the controller's shape in miniature: it answers tools of its own, its code is a
// Go bundle a process runs as an account it declares, its secrets belong to that account, it
// prepares its state, and its process replaces the container it used to run as.
func aServiceModule(t *testing.T) Manifest {
t.Helper()
raw := `{
"module": "svc", "version": "1", "tools": ["status"], "prepares": true,
"own-secrets": {"store": "${dir:state}/store"},
"secrets-owner": "svc",
"resources": [
{"id": "state", "type": "directory", "mode": "0700", "place": "mesh", "owner": "svc"},
{"id": "service", "type": "process", "name": "svc", "artifact": "code",
"run": ["./svc", "serve"], "user": "svc", "replaces": ["server"],
"env": {"SVC_STORE_FILE": "${dir:state}/store", "SVC_STORE_PORT": "${seat:mesh-store:5432}"}},
{"id": "account", "type": "user", "name": "svc", "shell": "/usr/bin/nologin", "home": "/var/lib/svc"}
],
"build": {"artifacts": [{"name": "code", "kind": "bundle", "language": "go", "system": "arch",
"from": "cmd/svc", "binary": "svc"}]}
}`
m, err := ParseManifest([]byte(raw))
if err != nil {
t.Fatalf("the service's manifest is refused: %v", err)
}
resolved, err := m.Resolve([]Built{{Name: "code", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "svc/code@" + aServiceDigest, Digest: aServiceDigest}})
if err != nil {
t.Fatal(err)
}
return resolved
}
func composeTheService(t *testing.T, with Rendering) []map[string]any {
t.Helper()
with.Needed = map[string]map[string]string{"svc": {"store": "sealed-store"}}
with.ArtifactStore = "anchor.internal:5100"
out, err := Resolution{Node: "anchor", Modules: []Manifest{aServiceModule(t)}}.Declaration(with)
if err != nil {
t.Fatalf("the service does not compose: %v", err)
}
return out
}
func indexOf(out []map[string]any, id string) int {
for i, r := range out {
if r["id"] == id {
return i
}
}
return -1
}
// A module that declares tools has every bundle served by the node's runtime unless it says
// otherwise — and the controller declares the verbs it answers as tools. Its service bundle is run
// by its own process; launched a second time by the runtime it would be a second controller
// pretending to be an MCP server.
func TestABundleItsOwnProcessRunsIsNotServedByTheRuntime(t *testing.T) {
m := aServiceModule(t)
if len(m.Bundles) != 1 {
t.Fatalf("the service's bundle was not kept: %+v", m.Bundles)
}
if loads := m.Bundles[0].Loads; len(loads) != 0 {
t.Fatalf("the runtime would launch the service's own bundle as tools: %v", loads)
}
// And a bundle no resource runs still is served, as a module declaring tools always had it.
tools := Manifest{Module: "t", Version: "1", Tools: []string{"x"},
Build: &Build{Artifacts: []Artifact{{Name: "tools", Kind: ArtifactBundle, Language: "go",
System: "arch", From: "cmd/t"}}}}
resolved, err := tools.Resolve([]Built{{Name: "tools", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "t/tools@" + aServiceDigest, Digest: aServiceDigest}})
if err != nil {
t.Fatal(err)
}
if loads := resolved.Bundles[0].Loads; len(loads) != 1 || loads[0] != "t" {
t.Fatalf("a tools bundle nothing runs is no longer served: %v", loads)
}
}
// The account is created before anything is given to it. Its secrets are mesh-computed and so
// placed before the module's own resources; given to a user the machine did not have yet, they were
// refused on the first apply and the process started without them.
func TestAModulesAccountComesBeforeWhatBelongsToIt(t *testing.T) {
out := composeTheService(t, Rendering{})
account, secret := indexOf(out, "svc.account"), indexOf(out, "svc."+NeedID("store"))
if account < 0 || secret < 0 {
t.Fatalf("the account or the secret is missing: %v", out)
}
if account > secret {
t.Fatalf("the secret owned by svc is written before svc exists: account at %d, secret at %d",
account, secret)
}
if owner := out[secret]["owner"]; owner != "svc" {
t.Errorf("the secret belongs to %v, not the account its process runs as", owner)
}
}
// The process is the module's program; its preparation is the same program asked to prepare, as a
// step before it — with the same account and environment, and handing nothing over.
func TestAProcessIsPreparedByItsOwnProgram(t *testing.T) {
out := composeTheService(t, Rendering{})
step, process := indexOf(out, "svc.service-prepare"), indexOf(out, "svc.service")
if step < 0 || process < 0 || step > process {
t.Fatalf("the preparation is not a step before the process (%d, %d): %v", step, process, out)
}
s := out[step]
if s["type"] != "process" || s["run-once"] != true || s["name"] != "svc-prepare" {
t.Errorf("the preparation is not a run-once process: %v", s)
}
if run, _ := json.Marshal(s["run"]); string(run) != `["./svc","prepare"]` {
t.Errorf("the preparation runs %s", run)
}
if s["user"] != "svc" || s["source"] != out[process]["source"] {
t.Errorf("the preparation does not run the same bundle as the same account: %v", s)
}
if env, _ := s["env"].(map[string]any); env["SVC_STORE_FILE"] == nil {
t.Errorf("the preparation is not given the process's environment: %v", s["env"])
}
if _, has := s["replaces"]; has {
t.Errorf("the preparation would hand over what the process replaces: %v", s)
}
if _, has := s["args"]; has {
t.Errorf("the preparation carries a container's args: %v", s)
}
}
// What the process replaces is named as the host recorded it, `<module>.<id>`; unprefixed, the host
// matches nothing and removes the container first, as before.
func TestWhatAProcessReplacesIsNamedAsTheHostRecordedIt(t *testing.T) {
out := composeTheService(t, Rendering{})
p := out[indexOf(out, "svc.service")]
if got, _ := json.Marshal(p["replaces"]); string(got) != `["svc.server"]` {
t.Fatalf("the process replaces %s", got)
}
}
func TestWhatReplacesMayNameIsRefusedNearItsAuthor(t *testing.T) {
for what, resource := range map[string]string{
"a container": `{"id":"c","type":"container","name":"c","image":"x@` + aServiceDigest + `","replaces":["old"]}`,
"a step": `{"id":"p","type":"process","name":"p","run":["./p"],"run-once":true,"replaces":["old"]}`,
"something declared": `{"id":"p","type":"process","name":"p","run":["./p"],"replaces":["p"]}`,
"another module's": `{"id":"p","type":"process","name":"p","run":["./p"],"replaces":["other.old"]}`,
"not a list": `{"id":"p","type":"process","name":"p","run":["./p"],"replaces":"old"}`,
} {
raw := `{"module":"m","version":"1","resources":[` + resource + `]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), "replace") {
t.Errorf("replaces on %s was accepted: %v", what, err)
}
}
ok := `{"module":"m","version":"1","resources":[{"id":"p","type":"process","name":"p","run":["./p"],"replaces":["old"]}]}`
if _, err := ParseManifest([]byte(ok)); err != nil {
t.Errorf("a process replacing what its module no longer declares was refused: %v", err)
}
}
+1 -1
View File
@@ -61,7 +61,7 @@ func knownFor(m Manifest, needs []Needed, node string) (map[string]map[string]st
"as": as,
}
// What the provider derives for this consumer rather than for all of them
// (novox/hq ADR 0201). Filled here, the one place a provision and the module
// (novox/hq ADR 0188). Filled here, the one place a provision and the module
// requiring it are both in hand.
served, err := ServedTo(n.Serves, as)
if err != nil {
+1 -181
View File
@@ -2,7 +2,6 @@ package catalogue
import (
"fmt"
"path"
"sort"
"strings"
)
@@ -29,9 +28,6 @@ type Built struct {
Reference string
// Digest is "sha256:<hex>", for an archive. An image reference already ends in one.
Digest string
// Launchers are, for a bundle in an interpreted language, the executable the build wrote beside
// each entrypoint, by entrypoint (novox/hq ADR 0193): what the node's runtime starts to serve it.
Launchers map[string]string
}
// Resolve fills a manifest's resources in from what was built.
@@ -71,49 +67,6 @@ func (m Manifest) Resolve(built []Built) (Manifest, error) {
out := m
out.Build = nil
out.Resources = nil
// What the build compiled, kept on the resolved manifest (novox/hq ADR 0175): a tools bundle is
// named by no resource of the module's own — the node's runtime loads it — so this is the only
// place the mesh would otherwise not have it. In artifact order, so two resolutions of one
// build compare equal.
out.Bundles = nil
if m.Build != nil {
run := runByAResource(m)
for _, a := range m.Build.Artifacts {
if a.Kind != ArtifactBundle {
continue
}
made := by[a.Name]
// What the runtime loads: what the artifact said, else every entrypoint of a module
// that declares tools, else nothing (the field's own rule; see Artifact.Loads).
//
// **Never, unasked, a bundle one of the module's own resources runs** (novox/hq issue 213).
// A process the host runs is the module's service, not its tools: the controller declares
// the verbs it answers as `tools` and serves them itself, and its bundle would otherwise
// have been launched a second time by the node's runtime, as an MCP child it is not.
loads := append([]string(nil), a.Loads...)
if a.Loads == nil && len(m.Tools) > 0 && !run[a.Name] {
loads = append([]string(nil), a.Entrypoints...)
// A bundle compiled to a binary has no entrypoints: the binary is what it is, and what
// the runtime starts to serve it (novox/hq ADR 0193). So a Go tools bundle is served
// as Go — the runtime execs it — exactly as a TypeScript one is through its launcher.
if bin := BinaryOf(a); bin != "" {
loads = []string{bin}
}
}
// **Kept, never routed** (ADR 0155): the builder publishes to the store at the address
// it reached it by, and a manifest carrying that address names an installation —
// registration refused node-tools for exactly this on 2026-10-02. The build record
// already keeps the store-relative form; the resolved manifest keeps the same, and
// composition routes it through the store a machine reaches (Routed).
out.Bundles = append(out.Bundles, Bundle{
Name: a.Name, Source: Recorded(made.Reference), Digest: made.Digest,
Language: a.Language, Entrypoints: append([]string(nil), a.Entrypoints...),
Loads: loads, Env: copyWords(a.Env), Launchers: copyWords(made.Launchers),
Binary: BinaryOf(a),
})
}
sort.Slice(out.Bundles, func(i, j int) bool { return out.Bundles[i].Name < out.Bundles[j].Name })
}
for _, r := range m.Resources {
named, _ := r["artifact"].(string)
if named == "" {
@@ -157,8 +110,7 @@ func (m Manifest) Resolve(built []Built) (Manifest, error) {
// The same on the wire: both are bytes fetched by digest and unpacked. They differ in
// how they were made — one packed as it stood, the other compiled first — and a
// machine has no reason to care which.
// Kept, not routed, for the reason the bundles above are (ADR 0155).
filled["source"] = Recorded(artifact.Reference)
filled["source"] = artifact.Reference
filled["digest"] = artifact.Digest
// **And `${version}`, so a resource can name a place that is this build's alone**
// (novox/hq ADR 0141, 04-ISSUES/142). A component is unpacked into a directory named
@@ -220,17 +172,6 @@ func (b *Build) problems(module string) []string {
// A bundle's source is the module's own directory by definition, and what it needs to say
// is which compiler — because the mesh chooses that, and cannot choose for a module that
// has not said.
if len(a.External) > 0 && (a.Kind != ArtifactBundle || a.Language != "typescript") {
problems = append(problems, fmt.Sprintf(
"%s: %q names packages it keeps external, and only a TypeScript bundle is bundled into "+
"one file with some kept out (novox/hq ADR 0193)", module, a.Name))
}
if len(a.Env) > 0 && a.Kind != ArtifactBundle {
problems = append(problems, fmt.Sprintf(
"%s: %q is a %q and says what it is given (env). Only a bundle the node's runtime "+
"serves is given words (novox/hq ADR 0192); a container says its own environment",
module, a.Name, a.Kind))
}
if a.Kind == ArtifactBundle || a.Kind == ArtifactPackage {
// **Except for a language that compiles to a binary, where it names which one**
// (novox/hq 04-ISSUES/142). A bundle in an interpreted language is the module's own
@@ -250,26 +191,6 @@ func (b *Build) problems(module string) []string {
"%s: %q is a bundle and says no language, so nothing can choose a compiler "+
"for it", module, a.Name))
}
problems = append(problems, bundleEnvProblems(module, a)...)
// What the runtime loads is among what was compiled (ADR 0175): a name here that is
// not an entrypoint is a file the bundle does not contain, and the runtime would
// fail to import it on every machine rather than here.
for _, load := range a.Loads {
found := false
for _, e := range a.Entrypoints {
found = found || e == load
}
// A bundle compiled to a binary is one executable: the runtime loads that or nothing
// (novox/hq ADR 0193).
if bin := BinaryOf(a); bin != "" {
found = load == bin
}
if !found {
problems = append(problems, fmt.Sprintf(
"%s: %q says the runtime loads %q, which is not among its entrypoints — "+
"what is loaded is compiled, so it is named there too", module, a.Name, load))
}
}
// **A system, for a language that compiles to a binary** (novox/hq ADR 0142). A binary
// is pinned to one operating system at link time so a host refuses to touch a machine
// it was not built for (novox/hq ADR 0005); an artifact that says nothing would be
@@ -394,104 +315,3 @@ func versionOf(digest string) string {
}
return hex
}
// bundleEnvWords are the words the runtime sets for itself; a bundle that named one would be
// telling the runtime what it is, which is the mesh's to say (novox/hq ADR 0192).
var bundleEnvWords = map[string]bool{
RuntimeToolModules: true, RuntimeBrokerFile: true, RuntimeOperatorAccount: true,
RuntimeOperatorHome: true, RuntimeToolEnv: true,
}
// bundleEnvProblems says what is wrong with what a bundle says it is given (novox/hq ADR 0192):
// a value is a path or a constant written with the references a container's environment may use
// for a place or a port, and never a secret's content or another module's binding — a secret
// reaches a tool as a file whose path is named.
func bundleEnvProblems(module string, a Artifact) []string {
if len(a.Env) == 0 {
return nil
}
var problems []string
for _, word := range sortedKeys(a.Env) {
value := a.Env[word]
if bundleEnvWords[word] {
problems = append(problems, fmt.Sprintf(
"%s: %q gives itself %s, which the node's runtime sets for itself; a bundle is "+
"given its own words beside the runtime's, never in place of them (novox/hq ADR 0192)",
module, a.Name, word))
}
rest := ofPort.ReplaceAllString(dirRef.ReplaceAllString(value, ""), "")
if strings.Contains(rest, "${") {
problems = append(problems, fmt.Sprintf(
"%s: %q gives %s the value %q. A bundle's word is a path or a constant, written with "+
"${dir:…} and ${port:…} only; a secret reaches a tool as a file the mesh places, "+
"named by its path, never as its content (novox/hq ADR 0192)",
module, a.Name, word, value))
}
}
return problems
}
func copyWords(in map[string]string) map[string]string {
if len(in) == 0 {
return nil
}
out := make(map[string]string, len(in))
for k, v := range in {
out[k] = v
}
return out
}
// BinaryOf is what a bundle compiled to a binary is called once built: what the artifact names, else
// the package it is built from, else the artifact's own name (novox/hq 04-ISSUES/142). Empty for a
// language that does not compile to one. The builder writes the binary under this name, and the
// composer runs it by it, so both ask here.
func BinaryOf(a Artifact) string {
if !compilesToABinary(a.Language) {
return ""
}
if name := strings.TrimSpace(a.Binary); name != "" {
return name
}
if from := strings.Trim(a.From, "./"); from != "" {
return path.Base(from)
}
return a.Name
}
// runByAResource is the artifacts one of a module's own resources names — a process that runs it,
// a step, an archive that unpacks it — by name.
func runByAResource(m Manifest) map[string]bool {
named := map[string]bool{}
for _, r := range m.Resources {
if a, ok := r["artifact"].(string); ok && a != "" {
named[a] = true
}
}
return named
}
// undeliveredBundles says which of a module's bundles nothing would ever put on a machine (novox/hq
// 04-ISSUES/216). A bundle reaches a machine three ways: the node's runtime serves it (it says
// `loads`, or its module declares `tools`), a resource names it (a process, a step, an archive), or
// it is the runtime itself. One reached by none of them was built, recorded and pushed as success,
// and was simply absent — seven modules' tools went missing that way on 2026-10-03. Refused here,
// naming the field that would deliver it.
func undeliveredBundles(m Manifest) []string {
if m.Build == nil || m.Module == RuntimeModule {
return nil
}
named := runByAResource(m)
var problems []string
for _, a := range m.Build.Artifacts {
if a.Kind != ArtifactBundle || named[a.Name] || len(a.Loads) > 0 || len(m.Tools) > 0 {
continue
}
problems = append(problems, fmt.Sprintf(
"%s: the bundle %q would be built and never reach a machine: nothing loads it, runs it or "+
"unpacks it. A tools bundle says `loads` (the entrypoints the node's runtime serves) or its "+
"module lists its `tools`; a daemon or a step is a resource naming it (novox/hq 04-ISSUES/216)",
m.Module, a.Name))
}
return problems
}
+4 -25
View File
@@ -8,7 +8,7 @@ import (
)
// What a provider derives for one consumer, said once in the provider's definition and delivered
// to both ends (novox/hq ADR 0201, issue 124).
// to both ends (novox/hq ADR 0188, issue 124).
//
// A `serves` block is otherwise literal: the same values for every consumer. Where the provider
// *names the resource* — a bucket, a database, a vhost — the name is derived from who is asking,
@@ -165,7 +165,7 @@ func sortedAnyKeys(values map[string]any) []string {
}
// derivedFor is what the provider on this machine derives for one consumer of one provision
// (novox/hq ADR 0201).
// (novox/hq ADR 0188).
//
// Settled first, then derived: an operator may set a prefix on what the provider serves and the
// mesh still fills the consumer's half of it ([ADR 0174]). Only the keys that actually name the
@@ -177,7 +177,7 @@ func sortedAnyKeys(values map[string]any) []string {
// choice servedOnThisMachine makes for the consumer's half. Nothing serving it on this machine is
// not an error: a contribution can reach a machine whose provider is a record or an adapter, and
// then there is nothing derived to tell.
func (r Resolution) derivedFor(provision, as, consumer, local string, settings SettingsBy) (map[string]any, error) {
func (r Resolution) derivedFor(provision, as string, settings SettingsBy) (map[string]any, error) {
for _, m := range r.Modules {
serves, said := m.Serves[provision]
if !said {
@@ -195,27 +195,6 @@ func (r Resolution) derivedFor(provision, as, consumer, local string, settings S
if names == nil {
return nil, nil
}
// **A consumer that keeps several holders of this provision is refused** — this is issue
// 124's own failure one case to the side, and it would be just as quiet.
//
// Each holder gets its own login, `…_<local>` (ADR 0094), and a provider derives from the
// login, so it would make one resource per holder. The consumer's side has no such
// dimension: one binding file per provision, one `${bound:<provision>:<key>}`, both
// derived from the un-suffixed identity. So the provider would create the holder's
// resource and the consumer would be configured against a name nothing made — it would
// authenticate successfully and be refused on every object, which reads like a credential
// fault and is not one.
//
// Lifting this means giving the consumer's side a local dimension. That is a decision,
// not an omission, and until it is taken the mesh says so rather than guessing.
if local != "" {
return nil, fmt.Errorf(
"%s keeps several holders of %s (this one is %q), and %s derives %s for each "+
"consumer from the login the mesh minted. Each holder has its own login, and a "+
"consumer is told one value per requirement — so the two ends would name "+
"different things and nothing would compare them (novox/hq ADR 0201)",
consumer, local, provision, m.Module, orNothing(sortedAnyKeys(names)))
}
settled, err := Settle(names, settings[m.Module])
if err != nil {
return nil, fmt.Errorf("%s serving %s: %w", m.Module, provision, err)
@@ -230,7 +209,7 @@ func (r Resolution) derivedFor(provision, as, consumer, local string, settings S
}
// notTranscribed refuses a consumer's file that writes out the value its provider derives for it,
// instead of asking for it (novox/hq ADR 0201, issue 124).
// instead of asking for it (novox/hq ADR 0188, issue 124).
//
// **What would have caught the one wrong instance.** The object store's three consumers each wrote
// their bucket into their own configuration by hand. One of them named a predecessor's bucket, and
@@ -1,121 +0,0 @@
package catalogue
import (
"reflect"
"strings"
"testing"
)
// Defends novox/hq ADR 0210 §3: a contribution is a dependency on the seat that receives it.
func TestAContributionDependsOnTheSeatThatPlacesIt(t *testing.T) {
env := mod("theme", nil, nil, nil)
env.Environment = &Environment{Variables: map[string]string{"GTK_THEME": "Adwaita:dark"}}
path := mod("toolchain", nil, nil, nil)
path.Environment = &Environment{Path: []PathEntry{{Entry: "/opt/x/bin"}}}
shell := mod("prompt", nil, nil, nil)
shell.Shell = []ShellCode{{For: "zsh", Slot: "first", Code: "true"}}
session := mod("wallpaper", nil, nil, nil)
session.Shell = []ShellCode{{For: "xinitrc", Slot: "normal", Code: "true"}}
resources := mod("bar", nil, nil, nil)
resources.Shell = []ShellCode{{For: "xresources", Slot: "normal", Code: "x: y"}}
empty := mod("nothing", nil, nil, nil)
empty.Environment = &Environment{}
cases := map[string]struct {
m Manifest
want []string
}{
"a variable": {env, []string{EnvironmentSeat}},
"a path entry": {path, []string{EnvironmentSeat}},
"shell code": {shell, []string{LoginShellSeat}},
"the session's start": {session, []string{DisplayServerSeat}},
"the session's X resources": {resources, []string{DisplayServerSeat}},
"an empty environment": {empty, nil},
}
for name, c := range cases {
got := DependsOn(c.m)
if len(got) == 0 {
got = nil
}
if !reflect.DeepEqual(got, c.want) {
t.Errorf("%s depends on %v, want %v", name, got, c.want)
}
}
}
func TestAContributionIsMetByAHolderOnTheNodeAndRefusedWithout(t *testing.T) {
holder := mod("node-env", nil, nil, nil, Claim{Name: EnvironmentSeat})
contributor := mod("theme", nil, nil, nil)
contributor.Environment = &Environment{Variables: map[string]string{"GTK_THEME": "Adwaita:dark"}}
catalogue := map[string]Manifest{"node-env": holder, "theme": contributor}
if _, err := AssignRefusal(catalogue, "laptop", []string{"node-env"}, []string{"theme"}); err != nil {
t.Fatalf("a contributor beside the holder is refused: %v", err)
}
_, err := AssignRefusal(catalogue, "laptop", nil, []string{"theme"})
if err == nil {
t.Fatal("a contributor on a node without the holder was accepted, and its contribution would be written nowhere")
}
if !strings.Contains(err.Error(), EnvironmentSeat) || !strings.Contains(err.Error(), "node-env") {
t.Errorf("the refusal names neither the seat nor its holder: %v", err)
}
if _, err := AssignRefusal(catalogue, "laptop", nil, []string{"theme", "node-env"}); err != nil {
t.Errorf("the contributor and the holder assigned together are refused: %v", err)
}
}
func TestAHolderMeetsItsOwnContribution(t *testing.T) {
// The display server's module contributes nothing to its own seat today, but the zsh module's
// environment contributions do go to another seat: a claim meets only the seat it names.
zsh := mod("zsh", nil, nil, nil, Claim{Name: LoginShellSeat})
zsh.Shell = []ShellCode{{For: "zsh", Slot: "normal", Code: "true"}}
zsh.Environment = &Environment{Variables: map[string]string{"EDITOR": "vim"}}
catalogue := map[string]Manifest{"zsh": zsh,
"node-env": mod("node-env", nil, nil, nil, Claim{Name: EnvironmentSeat})}
unheld := UnheldDependencies(catalogue, "laptop", []Manifest{zsh}, nil)
if len(unheld) != 1 || unheld[0].Seat != EnvironmentSeat {
t.Errorf("zsh alone: unheld %v, want only %s (its shell code is its own seat's)", unheld, EnvironmentSeat)
}
}
func TestTwoModulesDeclaringOnePackageAreRefusedBeforeAnythingIsRecorded(t *testing.T) {
pacman := withResources(mod("pacman", nil, nil, nil, Claim{Name: PackageManagerSeat}),
res("package", "pacman-contrib"))
bar := withResources(mod("bar", nil, nil, nil), res("package", "bar"), res("package", "pacman-contrib"))
other := withResources(mod("other", nil, nil, nil), res("package", "other"))
catalogue := map[string]Manifest{"pacman": pacman, "bar": bar, "other": other}
err := CollisionRefusal(catalogue, "laptop", []string{"pacman"}, []string{"bar"})
if err == nil || !strings.Contains(err.Error(), "pacman-contrib") || !strings.Contains(err.Error(), "bar") {
t.Fatalf("the second owner of a package was not refused by name: %v", err)
}
if err := CollisionRefusal(catalogue, "laptop", []string{"pacman"}, []string{"other"}); err != nil {
t.Errorf("a module declaring nothing shared is refused: %v", err)
}
// A collision already on the node is status's, not a reason to refuse an unrelated assignment.
if err := CollisionRefusal(catalogue, "laptop", []string{"pacman", "bar"}, []string{"other"}); err != nil {
t.Errorf("an unrelated assignment is refused for a collision already there: %v", err)
}
}
func TestCodeForAPowerMomentDependsOnThePowerSeat(t *testing.T) {
for _, moment := range powerMoments {
m := mod("laptop", nil, nil, nil)
m.Shell = []ShellCode{{For: moment, Slot: "normal", Code: "true"}}
if got := DependsOn(m); !reflect.DeepEqual(got, []string{PowerSeat}) {
t.Errorf("code for %s depends on %v, want %s", moment, got, PowerSeat)
}
if p := m.shellProblems(); len(p) != 0 {
t.Errorf("code for %s is refused: %v", moment, p)
}
}
m := mod("laptop", nil, nil, nil)
m.Shell = []ShellCode{{For: "after-lunch", Slot: "normal", Code: "true"}}
if p := m.shellProblems(); len(p) == 0 {
t.Error("code for a moment that does not exist was accepted")
}
if s, ok := SeatNamed(PowerSeat); !ok || s.Scope != ScopeNode {
t.Errorf("%s is not a node seat of the mesh's own: %+v %v", PowerSeat, s, ok)
}
}
@@ -1,131 +0,0 @@
package catalogue
import (
"encoding/json"
"fmt"
"os"
"strings"
"testing"
)
// novox/hq issue 213: the controller is a Go program and was the one piece of the mesh's own Go
// code still shipped as an image (ADR 0188 §1). Its own manifest, composed for the machine that runs
// it, is a Go bundle run by the host as a process — and no container.
func TestTheControllerIsAProcessAndNoContainer(t *testing.T) {
raw, err := os.ReadFile("../../module.json")
if err != nil {
t.Fatal(err)
}
m, err := ParseManifest(raw)
if err != nil {
t.Fatalf("the controller's own manifest does not parse:\n%v", err)
}
if m.Build == nil || len(m.Build.Artifacts) != 1 {
t.Fatalf("the controller builds %+v; it is one bundle", m.Build)
}
a := m.Build.Artifacts[0]
if a.Kind != ArtifactBundle || a.Language != "go" || a.System == "" || BinaryOf(a) != "mesh-controller" {
t.Fatalf("the controller's artifact is %+v, not a Go bundle naming its system and binary", a)
}
for _, c := range m.Capabilities {
if c == "container-runtime" {
t.Error("the controller still requires a container runtime on its machine")
}
}
digest := "sha256:" + strings.Repeat("c", 64)
control, err := m.Resolve([]Built{{Name: a.Name, Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "mesh-controller/" + a.Name + "@" + digest, Digest: digest}})
if err != nil {
t.Fatal(err)
}
// The node's runtime does not launch it: it serves its seat's verbs itself.
if loads := control.Bundles[0].Loads; len(loads) != 0 {
t.Errorf("the node's runtime would launch the controller as a tools bundle: %v", loads)
}
needed := map[string]map[string]string{"mesh-controller": {}}
for name := range m.OwnSecrets {
needed["mesh-controller"][name] = "sealed-" + name
}
out, err := Resolution{Node: "anchor", Modules: []Manifest{control}}.Declaration(Rendering{
Needed: needed, ArtifactStore: "anchor.internal:5100",
Seats: map[string]map[int]int{"mesh-store": {5432: 6852}},
})
if err != nil {
t.Fatalf("the controller does not compose: %v", err)
}
var process, step map[string]any
account, firstSecret := -1, -1
for i, r := range out {
switch {
case r["type"] == "container":
t.Errorf("the controller's declaration still runs a container: %v", r)
case r["id"] == "mesh-controller.controller":
process = r
case r["id"] == "mesh-controller.controller-prepare":
step = r
if process != nil {
t.Error("the controller's preparation is placed after the process it prepares for")
}
case r["type"] == "user" && r["name"] == "mesh-controller":
account = i
case strings.HasPrefix(fmt.Sprint(r["id"]), "mesh-controller.needs-") && firstSecret < 0:
firstSecret = i
}
}
if process == nil {
t.Fatalf("the controller's process is not in its declaration: %v", out)
}
if run, _ := json.Marshal(process["run"]); string(run) != `["./mesh-controller","serve"]` {
t.Errorf("the controller is run as %s, not its own bundle's binary", run)
}
if process["source"] != "anchor.internal:5100/mesh-controller/"+a.Name+"@"+digest || process["digest"] != digest {
t.Errorf("the controller's bundle is fetched from %v (%v)", process["source"], process["digest"])
}
// The user: an account the host declares, which owns what the process reads.
if process["user"] != "mesh-controller" || account < 0 {
t.Errorf("the controller runs as %v, and the account declared is at %d", process["user"], account)
}
if firstSecret >= 0 && account > firstSecret {
t.Error("the controller's secrets are written before the account they belong to exists")
}
for _, r := range out {
if strings.HasPrefix(fmt.Sprint(r["id"]), "mesh-controller.needs-") && r["owner"] != "mesh-controller" {
t.Errorf("%v belongs to %v, which the controller's process cannot read", r["id"], r["owner"])
}
}
if dir := fileNamed(out, "mesh-controller.mesh-state"); dir == nil || dir["owner"] != "mesh-controller" {
t.Errorf("the controller's state directory is not its account's to enter: %v", dir)
}
// Each mount became a path the process reads: nothing it is told is a path inside a container.
state := fmt.Sprint(fileNamed(out, "mesh-controller.mesh-state")["path"])
env, _ := process["env"].(map[string]any)
for key, value := range env {
v := fmt.Sprint(value)
if strings.HasPrefix(v, "/run/secrets") || strings.HasPrefix(v, "/broker-tls") {
t.Errorf("%s=%s is a path inside the container the controller no longer runs in", key, v)
}
if strings.HasSuffix(key, "_FILE") && !strings.HasPrefix(v, state+"/") {
t.Errorf("%s=%s is not one of the files the mesh places for it", key, v)
}
}
if env["MESH_BROKER_CERTIFICATE"] != "/var/lib/mesh-broker-tls/tls.crt" {
t.Errorf("the controller reads the broker's certificate from %v", env["MESH_BROKER_CERTIFICATE"])
}
if env["MESH_STORE_INVENTORY_PORT"] != "6852" {
t.Errorf("the controller is told the store is on %v; the node put it on 6852", env["MESH_STORE_INVENTORY_PORT"])
}
// The handover: the container it ran as goes only once this is running.
if got, _ := json.Marshal(process["replaces"]); string(got) != `["mesh-controller.server"]` {
t.Errorf("the controller's process replaces %s, not the container it ran as", got)
}
// And its state is prepared first, by the same program as the same account.
if step == nil || step["run-once"] != true || step["user"] != "mesh-controller" {
t.Fatalf("the controller's preparation is %v", step)
}
if run, _ := json.Marshal(step["run"]); string(run) != `["./mesh-controller","prepare"]` {
t.Errorf("the controller's preparation runs %s", run)
}
}
+10 -248
View File
@@ -415,13 +415,6 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
filtering := AsNftables(rules, with.Mesh, r.PublicDomain != "", with.Foundation,
with.OutwardLinks, with.TunnelInterface)
// **A variable two modules set is refused whether or not anything places it** (novox/hq ADR
// 0203 §5): the account has one environment, and a machine whose holder arrives later should not
// be the moment two modules are found to disagree about it.
if err := variablesSetOnce(r.Modules); err != nil {
return nil, err
}
var out []map[string]any
for _, m := range r.Modules {
if with.Adopted && m.Filtering != nil {
@@ -515,27 +508,10 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
return nil, fmt.Errorf(
"%s needs a secret called %q and none was made for it", m.Module, name)
}
// The runtime's credential belongs to the account the runtime runs as (novox/hq ADR 0175,
// to-be 38 WP3): its process is composed `user: <account>` where the node has one, and a
// root-owned 0600 file is one that process cannot read. Composed here rather than said in
// the manifest, because a manifest cannot say ${machine:account} safely — a node with no
// account has nothing to resolve it to, and then the runtime runs as root and the file
// stays root's.
owner := m.SecretsOwner
if m.Module == RuntimeModule && r.Account != "" {
owner = r.Account
}
first = append(first, ownedBy(owner, map[string]any{
first = append(first, ownedBy(m.SecretsOwner, map[string]any{
"id": NeedID(name), "type": "file", "path": m.OwnSecrets[name].Path, "sealed": sealed,
}))
}
// This module's tools bundles, where the machine runs the node's tool runtime (novox/hq
// ADR 0175, to-be 38 WP2). Mesh-computed like everything above it, and before the module's
// own resources for the same reason: the runtime's process names the files inside these
// and is restarted when one changes, so they are on the machine before it is.
if r.runtimeHere() {
first = append(first, bundleArchives(m)...)
}
// Operator-owned paths this module is granted use of (novox/hq ADR 0051). Written before
// the module's own resources, and so before the container that mounts them: the host must
// find each present — refusing clearly if the operator has not provided it — before it
@@ -610,14 +586,14 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
// and nothing would say so.
continue
}
first = append(first, ownedBy(r.provisionsAs(m), map[string]any{
first = append(first, map[string]any{
// One file per holder — the consumer's module with its local name after it
// where it keeps several (ADR 0094); the lab found two files with one id.
"id": GrantID(to, g.Consumer+"."+holderAs(g.From, g.Local)),
"type": "file",
"path": grantPath(m.Grants[to], g.Consumer, holderAs(g.From, g.Local)),
"sealed": g.Sealed,
}))
})
}
}
for _, to := range sortedKeys(m.Binds) {
@@ -654,7 +630,7 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
}
as := ConsumerIdentity(r.Node, IdentitySource(m.Slug, m.Module))
// What the provider derives for THIS consumer, filled here where the consumer is
// known (novox/hq ADR 0201). The same fill knownFor does below, so the binding file
// known (novox/hq ADR 0188). The same fill knownFor does below, so the binding file
// and the module's `${bound:…}` substitutions cannot say different things.
told := *found
told.Serves, err = ServedTo(told.Serves, as)
@@ -709,15 +685,7 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
// Now, and not before: a module whose resources are computed replaces them wholesale, and
// merging earlier would throw away the files it still needs.
//
// **Except the module's own accounts, which go before even those** (novox/hq issue 213). What
// the mesh computes may belong to one: a module whose code runs as an account it declares has
// its secrets written owned by that account, and a file given to a user the machine does not
// have yet fails — so on the first apply the secrets were refused, the process started without
// them, and the second apply healed it, which is the fault the paragraph above describes.
// An account depends on nothing the mesh computes.
accounts, rest := accountsFirst(resources)
resources = append(append(accounts, first...), rest...)
resources = append(append([]map[string]any{}, first...), resources...)
// No container is given the mesh's names (novox/hq ADR 0148). It used to be: every
// container got the whole roster as `--add-host` entries at creation, and a name that
@@ -784,7 +752,7 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
// And the machine underneath, which no binding of its own can tell it.
thisMachine := machineFacts(r, with.Names, with.MeshRange)
// **A definition that already holds the answer transcribed it** (novox/hq ADR 0201).
// **A definition that already holds the answer transcribed it** (novox/hq ADR 0188).
// Judged over what the module itself declares, and before anything is substituted: the
// mesh's own generated files — the binding, the contributions — legitimately carry the
// derived value, and after substitution so does every consumer's file, so this is the one
@@ -896,13 +864,6 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
return nil, err
}
publishedOn(copied, m.Module, with)
// The account's environment and every module's shell code, where this module holds the
// seat that places them (novox/hq ADR 0203, ADR 0204). Gathered from every module on
// the node, as the jails are, and **last of every placeholder pass**: shell code is a
// shell's own syntax, full of `${…}` no pass above should ever be shown.
if err := contributionsInto(copied, m, r.Modules, thisMachine); err != nil {
return nil, err
}
copied["id"] = m.Module + "." + fmt.Sprint(resource["id"])
// A service saying what it reflects names resources within its own module, so those
// are prefixed too or they would point at nothing.
@@ -921,30 +882,6 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
if renamed := reflectsRenamed(m.Module, resource["reload-on"]); renamed != nil {
copied["reload-on"] = renamed
}
// And which of its module's containers a scheduled step holds still (novox/hq ADR 0189).
// **The loudest of the three when it is missed.** An unprefixed `restart-on` matches
// nothing and a service quietly never restarts; an unprefixed `while-stopped` names a
// container the declaration does not contain, and the host refuses the whole
// declaration — so the machine takes nothing at all, for every push, until this is
// right. That is what it did on the control node (2026-10-04).
if renamed := reflectsRenamed(m.Module, resource[WhileStopped]); renamed != nil {
copied[WhileStopped] = renamed
}
// And what a process replaces (novox/hq issue 213): a resource of this module's that it
// no longer declares, named as the host recorded it, or the host hands nothing over and
// removes it first.
if renamed := reflectsRenamed(m.Module, resource["replaces"]); renamed != nil {
copied["replaces"] = renamed
}
// **What reads one of this module's own secrets is restarted when it changes** (novox/hq
// issue 203, issue 206). A credential is re-issued by the mesh, and a container that
// mounted the old file keeps the old one open: the build machine ran for an hour on a
// credential the mesh had replaced, because its manifest restarted it on its
// environment file and nobody had thought to name the credential too. Composed here so
// no manifest has to say it, for a container or a daemon that names the secret's path.
if reads := secretsReadBy(copied, m); len(reads) > 0 {
copied["restart-on"] = withRestartOn(copied["restart-on"], reads)
}
// **A version prepares its state before it runs** (novox/hq ADR 0135). Derived from the
// module's own resource rather than declared beside it: what prepares the state is the
// module's own code, so what it is given has to be what that code is given — and a
@@ -975,41 +912,6 @@ func (r Resolution) compose(with Rendering, owner map[string]string,
out = append(out, fact)
}
}
// The node's tool runtime, last (novox/hq ADR 0175, to-be 38 WP2.3): one process loading every
// bundle delivered above and holding the credential sealed above, so both exist before it starts
// — the order written here is the order the machine applies.
if r.runtimeHere() {
process, err := r.runtimeProcess(with)
if err != nil {
return nil, err
}
owner[fmt.Sprint(process["id"])] = RuntimeModule
out = append(out, process)
// What each module's bundles are given is read as the account the runtime runs as.
words := map[string]map[string]string{}
for _, m := range r.Modules {
w, err := bundleWords(m, with)
if err != nil {
return nil, err
}
words[m.Module] = w
}
// And a file a module's words name is one the runtime is restarted for when it changes.
if named := givenTo(out, owner, words, r.Account); len(named) > 0 {
restarts, _ := process["restart-on"].([]any)
seen := map[string]bool{}
for _, id := range restarts {
seen[fmt.Sprint(id)] = true
}
for _, id := range named {
if !seen[id] {
restarts = append(restarts, id)
seen[id] = true
}
}
process["restart-on"] = restarts
}
}
if with.Adopted {
// First, before anything a module declares: what the mesh needs reachable, then its guard.
// The order a machine applies is the order written here.
@@ -1226,7 +1128,7 @@ type Contribution struct {
// is what makes swapping one for another cost nothing.
Values map[string]any `json:"values"`
// Derived is what this provider's own definition said it derives for this consumer, already
// derived (novox/hq ADR 0201).
// derived (novox/hq ADR 0188).
//
// **The provider is told, rather than recomputing it.** A served value may name the consumer's
// identity — a bucket named for who is asking, a database prefixed with it — and before this
@@ -1240,28 +1142,6 @@ type Contribution struct {
Derived map[string]any `json:"derived,omitempty"`
}
// provisionsAs is the account that reads what the mesh writes for this provider: the one secret
// per consumer it must open to set that consumer's password (novox/hq issue 225).
//
// **A root-owned 0600 file is one that process cannot read**, which is the same sentence already
// written above for a module's own secrets — and the grant secret is the other kind of secret
// the mesh writes for a module, so it is the same rule.
//
// Which account depends on where the module's code runs. A module whose code is a bundle is run
// by the node's tool runtime, as the node's account ([ADR 0198](0198)); one still in a container
// is whatever it declares as its secrets owner. Nothing names these paths, so the rule that
// claims a bundle's other files by the words that name them (givenTo) cannot reach them: the
// harness composes a grant secret's path from the contributions file, not from a word.
//
// Empty is root, which is what it was and what a module with no bundle and no declared owner
// still wants.
func (r Resolution) provisionsAs(m Manifest) string {
if len(m.Bundles) > 0 && r.Account != "" {
return r.Account
}
return m.SecretsOwner
}
// grantPath is where one consumer's sealed credential lands on the providing machine.
//
// Suffixed, so the directory can also hold whatever the module writing it keeps there and so a
@@ -1352,7 +1232,7 @@ func (r Resolution) contributions(settings SettingsBy, grants []Grant,
continue
}
as := holderAs(ConsumerIdentity(g.Consumer, IdentitySource(g.Slug, g.From)), g.Local)
derived, err := r.derivedFor(g.Provision, as, g.From, g.Local, settings)
derived, err := r.derivedFor(g.Provision, as, settings)
if err != nil {
return nil, err
}
@@ -2114,18 +1994,12 @@ func preparationTarget(m Manifest) string {
return ""
}
for _, r := range m.Resources {
// A container, or a process the host runs from a bundle the module built (novox/hq issue
// 213): the same program in the same context, hosted as a unit rather than a container.
kind := fmt.Sprint(r["type"])
if (kind != "container" && kind != "process") || !ownArtifact(r, m.Module) {
if fmt.Sprint(r["type"]) != "container" || !ownArtifact(r, m.Module) {
continue
}
if once, _ := r["run-once"].(bool); once {
continue
}
if r["schedule"] != nil {
continue
}
return fmt.Sprint(r["id"])
}
return ""
@@ -2139,10 +2013,7 @@ func ownArtifact(resource map[string]any, module string) bool {
return true
}
image, _ := resource["image"].(string)
// A process or an archive carries what was built as its source (novox/hq issue 213).
source, _ := resource["source"].(string)
return strings.HasPrefix(image, ArtifactStoreScheme+module+"/") ||
strings.HasPrefix(source, ArtifactStoreScheme+module+"/")
return strings.HasPrefix(image, ArtifactStoreScheme+module+"/")
}
// prepared is the module's own resource as the step that prepares its state: the same image, the same
@@ -2164,19 +2035,7 @@ func prepared(from map[string]any) map[string]any {
step["id"] = fmt.Sprint(from["id"]) + "-prepare"
step["name"] = fmt.Sprint(from["name"]) + "-prepare"
step["run-once"] = true
if fmt.Sprint(from["type"]) == "process" {
// A process says its whole command: the program, then its arguments. The step is the same
// program asked to prepare (novox/hq issue 213). It replaces nothing — what the process
// replaces is handed over to the process, never to the step that runs before it — and a
// step is not restarted, it runs again when what it reads changed, which `restart-on` says.
run := stringsIn(from["run"])
if len(run) > 0 {
step["run"] = []any{run[0], PreparationArgument}
}
delete(step, "replaces")
} else {
step["args"] = []any{PreparationArgument}
}
delete(step, "ports")
delete(step, "ip")
delete(step, "schedule")
@@ -2237,100 +2096,3 @@ func portOfEndpoint(values map[string]any, ports map[string]int) {
values["port"] = port
}
}
// secretsReadBy is the file resources of this module's own secrets that a container or a daemon reads
// — named in its volumes, its environment or its env-files by the secret's placed path — as
// restart-on ids. Nothing for other shapes, and nothing for a scheduled or run-once process, which
// the host refuses a restart-on for (it runs again anyway, and reads the file afresh).
func secretsReadBy(resource map[string]any, m Manifest) []string {
kind := fmt.Sprint(resource["type"])
if kind != "container" && kind != "process" {
return nil
}
if resource["schedule"] != nil || resource["run-once"] == true {
return nil
}
var mentioned []string
for _, key := range []string{"volumes", "env", "env-file"} {
mentioned = append(mentioned, stringsIn(resource[key])...)
}
var out []string
for _, name := range sortedKeys(m.OwnSecrets) {
path := m.OwnSecrets[name].Path
if path == "" {
continue
}
for _, s := range mentioned {
// A volume is `source:destination[:mode]`; an env value or an env-file is the path itself.
if s == path || strings.HasPrefix(s, path+":") {
out = append(out, m.Module+"."+NeedID(name))
break
}
}
}
return out
}
// stringsIn is every string in a list or a map's values; nothing for anything else.
func stringsIn(v any) []string {
switch x := v.(type) {
case []any:
var out []string
for _, item := range x {
if s, ok := item.(string); ok {
out = append(out, s)
}
}
return out
case []string:
return x
case map[string]any:
var out []string
for _, k := range sortedKeys(x) {
if s, ok := x[k].(string); ok {
out = append(out, s)
}
}
return out
case map[string]string:
var out []string
for _, k := range sortedKeys(x) {
out = append(out, x[k])
}
return out
}
return nil
}
// withRestartOn is a resource's restart-on list with these ids added once each.
func withRestartOn(have any, add []string) []any {
var out []any
seen := map[string]bool{}
for _, id := range reflectsRenamed("", have) {
s := fmt.Sprint(id)
if !seen[s] {
seen[s] = true
out = append(out, s)
}
}
for _, id := range add {
if !seen[id] {
seen[id] = true
out = append(out, id)
}
}
return out
}
// accountsFirst splits a module's resources into its accounts and everything else, each in the order
// written.
func accountsFirst(resources []map[string]any) (accounts, rest []map[string]any) {
for _, r := range resources {
if fmt.Sprint(r["type"]) == "user" {
accounts = append(accounts, r)
continue
}
rest = append(rest, r)
}
return accounts, rest
}
@@ -7,7 +7,7 @@ import (
)
// What a provider derives for each consumer, said once and delivered to both ends
// (novox/hq ADR 0201, issue 124).
// (novox/hq ADR 0188, issue 124).
//
// The failure these are written against: the object store's provisioner derived each consumer's
// bucket from the login the mesh minted, in its own code, and the mesh had no channel to tell the
@@ -295,49 +295,3 @@ func storeGrants(t *testing.T, out []map[string]any) []Contribution {
t.Fatalf("the provider was given no contributions file: %v", out)
return nil
}
// A consumer that keeps SEVERAL holders of one provision is refused, rather than told one thing
// while its provider is told another.
//
// **This is issue 124's own failure, one case to the side.** The mesh gives each holder its own
// login — `mesh_node_mod_<local>` (ADR 0094) — and the provider derives from the login, so it
// would make one resource per holder. The consumer's side has no such dimension: there is one
// binding file per provision and one `${bound:<provision>:<key>}`, both derived from the
// un-suffixed identity. So the provider would create `…-mod-cold` and the consumer would be
// configured against `…-mod`: it would authenticate successfully and be refused on every object,
// which is exactly the fault this whole record exists to end.
//
// Refused, loudly, at the one place that can see both halves. Lifting it means giving the
// consumer's side a local dimension, which is a decision and not an omission.
func TestAConsumerWithSeveralHoldersOfADerivingProviderIsRefused(t *testing.T) {
m := files()
// Two holders of the one provision, the shape ADR 0094 gives a module that keeps several.
m.Secrets = nil
m.SecretsMany = map[string]map[string]string{"s3-bucket": {
"hot": "/var/lib/files/hot.secret",
"cold": "/var/lib/files/cold.secret",
}}
m.Resources = []map[string]any{{
"id": "env", "type": "file", "path": "/var/lib/files/env", "mode": "0600",
"content": "BUCKET=${bound:s3-bucket:bucket}\n",
}}
r, err := Resolve(shelf(store(), m), []string{"store", "files"}, reachable(), World{})
if err != nil {
t.Fatal(err)
}
_, err = r.Declaration(Rendering{Grants: []Grant{
{Provision: "s3-bucket", Consumer: "workstation", From: "files", Slug: "files",
Local: "hot", Values: map[string]any{}, Sealed: "c2VhbGVk"},
{Provision: "s3-bucket", Consumer: "workstation", From: "files", Slug: "files",
Local: "cold", Values: map[string]any{}, Sealed: "c2VhbGVk"},
}})
if err == nil {
t.Fatal("a consumer with several holders of a deriving provider was accepted; " +
"its two ends would have disagreed in silence")
}
for _, want := range []string{"files", "s3-bucket", "bucket"} {
if !strings.Contains(err.Error(), want) {
t.Errorf("the refusal does not name %q: %v", want, err)
}
}
}
-585
View File
@@ -1,585 +0,0 @@
package catalogue
import (
"fmt"
"regexp"
"sort"
"strings"
)
// The account's environment and the login shell's code, composed from the modules a node runs
// (novox/hq ADR 0203, ADR 0204).
//
// **The same shape as the jails.** Every module may contribute — a toolchain its directory on PATH,
// a version manager a variable naming its home, a prompt the code that loads it — naming no node, no
// path and no file of the shell's (ADR 0112). The one module holding the matching seat places the
// result with a placeholder in its own file, and the controller fills it from every module on the
// node. A node not running a module has none of its contribution, and unassigning one takes its
// lines away at the next composition.
//
// **Two kinds of contribution, kept apart on purpose.** The environment is facts, which the
// controller writes in two standard formats — POSIX assignment and the service manager's
// environment.d — so a terminal, a script, the login shell's `execute` and a graphical session all
// read the same values (ADR 0203). Shell code is not a fact: it is text in one shell's syntax, which
// the controller sorts into a slot and pastes without reading, as it pastes a jail's stanza (ADR
// 0204).
// EnvironmentSeat and LoginShellSeat are the seats whose holders may place what the modules
// contributed: the account's environment, and the login shell's code.
const (
EnvironmentSeat = "node-environment"
LoginShellSeat = "node-login-shell"
// PowerSeat is the seat whose holder places code for the power moments (novox/hq ADR 0211).
PowerSeat = "node-power"
)
// Where an environment entry on PATH goes: before the account's existing PATH, or after it.
const (
PathAtStart = "start"
PathAtEnd = "end"
)
// Environment is what one module adds to the account's environment (novox/hq ADR 0203).
type Environment struct {
// Variables are names and literal values. A value may name the machine's own facts with
// ${machine:…}, resolved before anything is written, and nothing else that expands.
Variables map[string]string `json:"variables,omitempty"`
// Path is entries on the account's PATH, each at its start or its end, in the order declared.
Path []PathEntry `json:"path,omitempty"`
}
// PathEntry is one directory a module puts on the account's PATH.
type PathEntry struct {
Entry string `json:"entry"`
At string `json:"at"`
}
// ShellCode is one piece of code a module adds to a shell's startup (novox/hq ADR 0204).
type ShellCode struct {
// For is the shell the code is written in.
For string `json:"for"`
// Slot is where it runs among the other modules' code: first, normal or last. Named rather
// than numbered, because every contributor would guess a number and a collision says nothing.
Slot string `json:"slot"`
// Code is never interpreted — it is the shell's syntax, and only the shell reads it.
Code string `json:"code"`
}
// The shells and slots a contribution may name (novox/hq ADR 0204). Closed, so a typo is a refusal
// at the check rather than code that silently lands in no placeholder.
var (
knownShells = []string{"zsh", "bash", "fish"}
knownSlots = []string{"first", "normal", "last"}
// sessionFiles are the two files of the graphical session's start that read no directory, so a
// contribution to them is a slot rather than a drop-in (novox/hq ADR 0208 §4): `xinitrc` is POSIX
// code the session's start runs, `xresources` X resources merged at its start. Placed by the
// display server's holder, as a shell's slots are placed by the login shell's.
sessionFiles = []string{"xinitrc", "xresources"}
// powerMoments are the moments of a machine's power a module may run code at (novox/hq ADR
// 0211 §3): POSIX code run as root by node-power's holder, in module order, each piece bounded.
powerMoments = []string{"after-boot", "before-sleep", "after-wake", "before-shutdown", "on-mains", "on-battery"}
)
// contributionTargets is every name a contribution's `for` may take.
func contributionTargets() []string {
out := append(append([]string(nil), knownShells...), sessionFiles...)
return append(out, powerMoments...)
}
// placerOf is the seat whose holder places a contribution for this target (novox/hq ADR 0204,
// ADR 0208 §4).
func placerOf(target string) string {
if oneOf(sessionFiles, target) {
return DisplayServerSeat
}
if oneOf(powerMoments, target) {
return PowerSeat
}
return LoginShellSeat
}
// The two renderings of the environment a holder may place (novox/hq ADR 0203, decision 3).
const (
EnvironmentPOSIX = "posix"
EnvironmentSystemd = "systemd"
)
// ofEnvironment and ofShell are where a holder places what was contributed: ${environment:posix},
// ${environment:systemd} and ${shell:<shell>:<slot>}. Loose inside the braces on purpose, so a
// misspelt key is found and refused rather than left in a file as a literal nobody reads.
var (
ofEnvironment = regexp.MustCompile(`\$\{environment:([^}]*)\}`)
ofShell = regexp.MustCompile(`\$\{shell:([^}]*)\}`)
// ofContributed is either kind of contributed text, matched together so both fill in one pass.
ofContributed = regexp.MustCompile(`\$\{(shell|contribution):([^}]*)\}`)
)
// variableName is a POSIX shell variable name, which is also what environment.d accepts.
var variableName = regexp.MustCompile(`^[A-Za-z_][A-Za-z0-9_]*$`)
// environmentProblems is what is wrong with this module's environment contribution, from the
// manifest alone.
func (m Manifest) environmentProblems() []string {
if m.Environment == nil {
return nil
}
var problems []string
for _, n := range sortedKeys(m.Environment.Variables) {
switch {
case !variableName.MatchString(n):
problems = append(problems, fmt.Sprintf(
"%s sets the variable %q, which is not a name a shell accepts: a letter or an "+
"underscore, then letters, digits and underscores", m.Module, n))
continue
case n == "PATH":
// PATH is the one variable every module shares, so no module may set it whole: a second
// setter would replace the first's entries, and the account's own PATH with them.
problems = append(problems, fmt.Sprintf(
"%s sets PATH as a variable; a module adds an entry under environment.path, at the "+
"start or the end, and PATH is composed from every module's (novox/hq ADR 0203)", m.Module))
continue
}
if why := literalProblem(m.Environment.Variables[n]); why != "" {
problems = append(problems, fmt.Sprintf(
"%s sets %s to %q, which %s — %s", m.Module, n, m.Environment.Variables[n], why, literalRule))
}
}
seen := map[string]bool{}
for i, p := range m.Environment.Path {
switch {
case p.Entry == "":
problems = append(problems, fmt.Sprintf("%s's PATH entry %d names no directory", m.Module, i+1))
case strings.Contains(ofMachine.ReplaceAllString(p.Entry, ""), ":"):
// A colon is PATH's own separator, so an entry holding one is two entries, and the
// check that it is already present would look for the wrong thing.
problems = append(problems, fmt.Sprintf(
"%s puts %q on PATH, which holds a colon, PATH's own separator", m.Module, p.Entry))
case seen[p.Entry]:
problems = append(problems, fmt.Sprintf("%s puts %q on PATH twice", m.Module, p.Entry))
default:
if why := literalProblem(p.Entry); why != "" {
problems = append(problems, fmt.Sprintf(
"%s puts %q on PATH, which %s — %s", m.Module, p.Entry, why, literalRule))
}
}
seen[p.Entry] = true
if p.At != PathAtStart && p.At != PathAtEnd {
problems = append(problems, fmt.Sprintf(
"%s puts %q on PATH at %q; an entry goes at %q or %q of the account's PATH",
m.Module, p.Entry, p.At, PathAtStart, PathAtEnd))
}
}
return problems
}
// literalRule is why a value must be literal, said with every refusal of one.
const literalRule = "a value is literal, so a POSIX shell and the service manager read it alike, and " +
"names the machine only through the mesh's own ${machine:…} facts (novox/hq ADR 0203)"
// literalProblem is why a value cannot be written, unquoted by either reader, as the same string in
// both formats — or nothing. A `$` would expand differently in each; a quote or a backslash is
// quoting in one and a character in the other; a line break ends the line in both.
func literalProblem(v string) string {
switch {
case strings.ContainsAny(v, `'"`):
return "holds a quote"
case strings.Contains(v, `\`):
return "holds a backslash"
case strings.ContainsAny(v, "\n\r"):
return "holds a line break"
case strings.ContainsRune(v, 0):
return "holds a NUL"
case strings.Contains(ofMachine.ReplaceAllString(v, ""), "$"):
return "holds a $ that is not one of the machine's ${machine:…} facts"
}
return ""
}
// shellProblems is what is wrong with this module's shell code, from the manifest alone. The code
// itself is not judged: it is the shell's syntax, which the controller does not read.
func (m Manifest) shellProblems() []string {
var problems []string
for i, c := range m.Shell {
if !oneOf(contributionTargets(), c.For) {
problems = append(problems, fmt.Sprintf(
"%s's shell code %d is for %q; the shells are %s, the session's files %s, and the power "+
"moments %s", m.Module, i+1, c.For, strings.Join(knownShells, ", "),
strings.Join(sessionFiles, ", "), strings.Join(powerMoments, ", ")))
}
if !oneOf(knownSlots, c.Slot) {
problems = append(problems, fmt.Sprintf(
"%s's shell code %d goes in the slot %q; the slots are %s", m.Module, i+1, c.Slot,
strings.Join(knownSlots, ", ")))
}
if strings.TrimSpace(c.Code) == "" {
problems = append(problems, fmt.Sprintf("%s's shell code %d has no code", m.Module, i+1))
}
}
return problems
}
// contributionPlaceholderProblems is every place this module's resources name the environment or
// the shell's code and may not — judged from the manifest, so the catalogue check refuses it before
// a mesh does, and again at composition in the same words.
func (m Manifest) contributionPlaceholderProblems() []string {
var problems []string
for _, r := range m.Resources {
problems = append(problems, placeholderProblems(m, r)...)
problems = append(problems, seatPlaceholderProblems(m, r)...)
}
return problems
}
// placeholderProblems is what is wrong with one resource's ${environment:…} and ${shell:…}.
//
// **The seat authorises it, not the placeholder** (novox/hq ADR 0203 §5, ADR 0204 §3), as the seat
// authorises the bus's user list: a module that does not hold the account's environment writing it
// would be a second writer of a file there is one of, and a module that does not hold the login
// shell writing every module's shell code would be a second shell.
func placeholderProblems(m Manifest, r map[string]any) []string {
var problems []string
for _, field := range sortedKeys(r) {
s, ok := r[field].(string)
if !ok {
continue
}
env := ofEnvironment.FindAllStringSubmatch(s, -1)
code := ofShell.FindAllStringSubmatch(s, -1)
if len(env)+len(code) == 0 {
continue
}
if field != "content" {
// Placed only where a file's bytes are, which is where every one of them is meant to go:
// a path or an owner holding several lines of shell is nothing the host could act on.
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s in its %s; the environment and the shell's code are placed "+
"only in a file's content", m.Module, r["id"], placeholderOf(env, code), field))
continue
}
for _, e := range env {
if e[1] != EnvironmentPOSIX && e[1] != EnvironmentSystemd {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s; the environment is ${environment:%s} or ${environment:%s}",
m.Module, r["id"], e[0], EnvironmentPOSIX, EnvironmentSystemd))
}
}
if len(env) > 0 && !m.ClaimsSeat(EnvironmentSeat) {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s and %s does not claim %s; the account's environment is "+
"written by that seat's holder alone (novox/hq ADR 0203)",
m.Module, r["id"], env[0][0], m.Module, EnvironmentSeat))
}
// Each placeholder judged by its own target: a shell's code is the login shell's holder's to
// place (ADR 0204), the session's files the display server's (ADR 0208 §4) — and a holder of
// one placing the other's would be a second writer of a file there is one of.
refusedFor := map[string]bool{}
for _, c := range code {
target, slot, two := strings.Cut(c[1], ":")
if !two || !oneOf(contributionTargets(), target) || !oneOf(knownSlots, slot) {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s; shell code is ${shell:<shell>:<slot>}, the shell one of "+
"%s, the session's file one of %s or the power moment one of %s, and the slot one of %s",
m.Module, r["id"], c[0], strings.Join(knownShells, ", "), strings.Join(sessionFiles, ", "),
strings.Join(powerMoments, ", "), strings.Join(knownSlots, ", ")))
continue
}
seat := placerOf(target)
if m.ClaimsSeat(seat) || refusedFor[seat] {
continue
}
refusedFor[seat] = true
if seat == PowerSeat {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s and %s does not claim %s; every module's code for a power "+
"moment is placed by the power seat's holder alone (novox/hq ADR 0211)",
m.Module, r["id"], c[0], m.Module, seat))
continue
}
if seat == DisplayServerSeat {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s and %s does not claim %s; every module's %s is placed by "+
"the display server's holder alone (novox/hq ADR 0208)",
m.Module, r["id"], c[0], m.Module, seat, target))
continue
}
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s and %s does not claim %s; every module's shell code is "+
"placed by the login shell's holder alone (novox/hq ADR 0204)",
m.Module, r["id"], c[0], m.Module, seat))
}
}
return problems
}
func placeholderOf(env, code [][]string) string {
if len(env) > 0 {
return env[0][0]
}
return code[0][0]
}
// contributedEnvironment is one node's environment, gathered and in the order it is written.
type contributedEnvironment struct {
// variables is by module in name order, each module's sorted by name.
variables []setBy
// start and end are PATH's entries in their final order, each once.
start, end []placedOn
}
type setBy struct {
module string
names []string
values map[string]string
}
type placedOn struct {
module, entry string
}
// inModuleOrder is the modules sorted by name — the order contributions are written in (novox/hq
// ADR 0203, ADR 0204), so the same set composes byte for byte whatever order they were assigned in.
func inModuleOrder(modules []Manifest) []Manifest {
out := append([]Manifest(nil), modules...)
sort.SliceStable(out, func(a, b int) bool { return out[a].Module < out[b].Module })
return out
}
// variablesSetOnce refuses a variable two modules on one node both set (novox/hq ADR 0203 §5),
// naming both. Neither is chosen: whichever was written last would win in one reader and not
// necessarily in the other, and the module that lost would not be told.
func variablesSetOnce(modules []Manifest) error {
setter := map[string]string{}
for _, m := range inModuleOrder(modules) {
if m.Environment == nil {
continue
}
for _, n := range sortedKeys(m.Environment.Variables) {
if first, taken := setter[n]; taken {
return fmt.Errorf(
"%s and %s both set %s on this machine; the account has one environment, so one "+
"of them must stop setting it (novox/hq ADR 0203)", first, m.Module, n)
}
setter[n] = m.Module
}
}
return nil
}
// environmentOn gathers every module's environment on a node, with the machine's facts in place.
//
// A PATH entry two modules both add is written once, where the first puts it: two toolchains
// sharing ~/.local/bin is ordinary, and nothing about it is in conflict.
func environmentOn(modules []Manifest, facts map[string]string) (contributedEnvironment, error) {
var env contributedEnvironment
if err := variablesSetOnce(modules); err != nil {
return env, err
}
placed := map[string]bool{}
for _, m := range inModuleOrder(modules) {
if m.Environment == nil {
continue
}
if len(m.Environment.Variables) > 0 {
set := setBy{module: m.Module, values: map[string]string{}}
for _, n := range sortedKeys(m.Environment.Variables) {
v, err := factsIn(m.Environment.Variables[n], facts, m.Module, n)
if err != nil {
return env, err
}
set.names = append(set.names, n)
set.values[n] = v
}
env.variables = append(env.variables, set)
}
for _, p := range m.Environment.Path {
entry, err := factsIn(p.Entry, facts, m.Module, "a PATH entry")
if err != nil {
return env, err
}
if strings.Contains(entry, ":") {
return env, fmt.Errorf("%s puts %q on PATH on this machine, which holds a colon, PATH's own separator",
m.Module, entry)
}
if placed[entry] {
continue
}
placed[entry] = true
if p.At == PathAtEnd {
env.end = append(env.end, placedOn{m.Module, entry})
} else {
env.start = append(env.start, placedOn{m.Module, entry})
}
}
}
return env, nil
}
// factsIn resolves a contributed value's ${machine:…} facts with this machine's — first, before
// either format is written, so both say the same thing (novox/hq ADR 0203).
func factsIn(v string, facts map[string]string, module, what string) (string, error) {
for _, key := range machineUsed(v) {
value, has := facts[key]
if !has {
return "", fmt.Errorf("%s sets %s to a value that says ${machine:%s}, and this machine says %s",
module, what, key, orNothing(namesOfFacts(facts)))
}
v = strings.ReplaceAll(v, fmt.Sprintf("${machine:%s}", key), value)
}
// Judged again once filled: a fact is the mesh's, and still has to be a literal both readers
// take alike.
if why := literalProblem(v); why != "" {
return "", fmt.Errorf("%s sets %s to %q on this machine, which %s — %s", module, what, v, why, literalRule)
}
return v, nil
}
// posix is the environment as lines a POSIX shell sources (novox/hq ADR 0203 §3): every variable
// exported, every PATH entry added only when it is missing, so sourcing the file twice — a login
// shell that starts another — changes nothing. POSIX sh only, because sh, bash and zsh all read it.
//
// The start entries are written last-first: each is put in front of PATH, so the last written ends
// up first, and the result reads in module order, then the order each module declared.
func (e contributedEnvironment) posix() string {
var b strings.Builder
for _, set := range e.variables {
fmt.Fprintf(&b, "# %s\n", set.module)
for _, n := range set.names {
fmt.Fprintf(&b, "export %s='%s'\n", n, set.values[n])
}
}
named := ""
for i := len(e.start) - 1; i >= 0; i-- {
p := e.start[i]
if p.module != named {
fmt.Fprintf(&b, "# %s\n", p.module)
named = p.module
}
fmt.Fprintf(&b, "case \":${PATH}:\" in *':%s:'*) ;; *) PATH='%s'\"${PATH:+:${PATH}}\" ;; esac\n",
p.entry, p.entry)
}
named = ""
for _, p := range e.end {
if p.module != named {
fmt.Fprintf(&b, "# %s\n", p.module)
named = p.module
}
fmt.Fprintf(&b, "case \":${PATH}:\" in *':%s:'*) ;; *) PATH=\"${PATH:+${PATH}:}\"'%s' ;; esac\n",
p.entry, p.entry)
}
if len(e.start)+len(e.end) > 0 {
b.WriteString("export PATH\n")
}
return b.String()
}
// systemd is the same environment as the service manager's environment.d reads it (novox/hq ADR
// 0203 §3), for the account's user manager and so for everything a graphical session starts. Read
// once per manager start, so it needs no guard against running twice; the account's existing PATH
// sits between the start and the end entries.
func (e contributedEnvironment) systemd() string {
var b strings.Builder
for _, set := range e.variables {
fmt.Fprintf(&b, "# %s\n", set.module)
for _, n := range set.names {
fmt.Fprintf(&b, "%s=%s\n", n, set.values[n])
}
}
if len(e.start) > 0 {
fmt.Fprintf(&b, "# %s\nPATH=%s${PATH:+:$PATH}\n", modulesOf(e.start), entriesOf(e.start))
}
if len(e.end) > 0 {
fmt.Fprintf(&b, "# %s\nPATH=${PATH:+$PATH:}%s\n", modulesOf(e.end), entriesOf(e.end))
}
return b.String()
}
// modulesOf names who contributed a line holding several modules' entries, in the order they appear.
func modulesOf(entries []placedOn) string {
var names []string
seen := map[string]bool{}
for _, p := range entries {
if !seen[p.module] {
seen[p.module] = true
names = append(names, p.module)
}
}
return strings.Join(names, ", ")
}
func entriesOf(entries []placedOn) string {
out := make([]string, len(entries))
for i, p := range entries {
out[i] = p.entry
}
return strings.Join(out, ":")
}
// shellCode is every module's code for one shell and one slot (novox/hq ADR 0204 §3): in module
// order, each module's pieces in the order it declared them, each preceded by a line naming the
// module, and empty when nothing is contributed.
func shellCode(modules []Manifest, shell, slot string) string {
var b strings.Builder
for _, m := range inModuleOrder(modules) {
named := false
for _, c := range m.Shell {
if c.For != shell || c.Slot != slot {
continue
}
if !named {
fmt.Fprintf(&b, "# %s\n", m.Module)
named = true
}
b.WriteString(c.Code)
if !strings.HasSuffix(c.Code, "\n") {
b.WriteString("\n")
}
}
}
return b.String()
}
// contributionsInto fills a holder's file with the node's environment and its shell code.
//
// **Last, after every other placeholder pass, and in one pass each.** Shell code is contributed text
// in a shell's own syntax — `${XDG_CACHE_HOME:-$HOME/.cache}`, `${(%):-%n}` — and the rendered
// environment holds `${PATH:+…}`: a scanner for the mesh's own placeholders that ran after these
// were in place would read the shell's expansions as the mesh's and refuse them, or fill a
// `${machine:…}` some module wrote for its shell to see. So nothing runs after them, the environment
// is filled before the shell's code is, and each is replaced in a single pass over what the holder
// wrote, so a contributed piece is never scanned again.
func contributionsInto(resource map[string]any, m Manifest, modules []Manifest, facts map[string]string) error {
if problems := append(placeholderProblems(m, resource), seatPlaceholderProblems(m, resource)...); len(problems) > 0 {
return fmt.Errorf("%s", problems[0])
}
content, ok := resource["content"].(string)
if !ok {
return nil
}
if ofEnvironment.MatchString(content) {
env, err := environmentOn(modules, facts)
if err != nil {
return err
}
content = ofEnvironment.ReplaceAllStringFunc(content, func(placeholder string) string {
if ofEnvironment.FindStringSubmatch(placeholder)[1] == EnvironmentSystemd {
return env.systemd()
}
return env.posix()
})
}
// Shell code and seat contributions in one pass (novox/hq ADR 0212): both are contributed text
// the controller does not read, so neither may be scanned after the other is in place — a
// contributed line that happened to spell the other's placeholder would be filled.
if ofContributed.MatchString(content) {
content = ofContributed.ReplaceAllStringFunc(content, func(placeholder string) string {
found := ofContributed.FindStringSubmatch(placeholder)
first, second, _ := strings.Cut(found[2], ":")
if found[1] == "contribution" {
return seatContributions(modules, first, second)
}
return shellCode(modules, first, second)
})
}
resource["content"] = content
return nil
}
-471
View File
@@ -1,471 +0,0 @@
package catalogue
import (
"os"
"os/exec"
"path/filepath"
"strings"
"testing"
)
// Defends novox/hq ADR 0203 (the account's environment is one module's, and every module
// contributes to it) and ADR 0204 (shell code in named slots, placed by the login shell's holder).
// contributors is a fixed set of contributions, in no particular order: what the renderings are
// asserted against byte for byte. go-toolchain and zsh both put ~/.local/bin on PATH, which is the
// ordinary case of two modules sharing a directory, and is written once.
func contributors() []Manifest {
return []Manifest{
{Module: "zsh", Environment: &Environment{
Variables: map[string]string{"XDG_CONFIG_HOME": "${machine:account-home}/.config", "EDITOR": "vim"},
Path: []PathEntry{
{Entry: "${machine:account-home}/.local/bin", At: PathAtStart},
{Entry: "${machine:account-home}/bin", At: PathAtStart},
{Entry: "/opt/scripts", At: PathAtEnd},
},
}},
{Module: "go-toolchain", Environment: &Environment{
Variables: map[string]string{"GOPATH": "${machine:account-home}/go"},
Path: []PathEntry{
{Entry: "${machine:account-home}/go/bin", At: PathAtStart},
{Entry: "/usr/local/go/bin", At: PathAtStart},
{Entry: "${machine:account-home}/.local/bin", At: PathAtStart},
},
}},
{Module: "agent", Environment: &Environment{
Variables: map[string]string{"DISABLE_AUTOUPDATER": "1"},
Path: []PathEntry{{Entry: "/opt/agent/bin", At: PathAtEnd}},
}},
// A module contributing nothing is in the set and writes nothing.
{Module: "postgres"},
}
}
var operatorFacts = map[string]string{"name": "workstation", "account": "op", "account-home": "/home/op"}
// The final PATH this set composes, around whatever the account had: the start entries in module
// order and then declared order, the account's own, then the end entries.
const composedPOSIX = `# agent
export DISABLE_AUTOUPDATER='1'
# go-toolchain
export GOPATH='/home/op/go'
# zsh
export EDITOR='vim'
export XDG_CONFIG_HOME='/home/op/.config'
# zsh
case ":${PATH}:" in *':/home/op/bin:'*) ;; *) PATH='/home/op/bin'"${PATH:+:${PATH}}" ;; esac
# go-toolchain
case ":${PATH}:" in *':/home/op/.local/bin:'*) ;; *) PATH='/home/op/.local/bin'"${PATH:+:${PATH}}" ;; esac
case ":${PATH}:" in *':/usr/local/go/bin:'*) ;; *) PATH='/usr/local/go/bin'"${PATH:+:${PATH}}" ;; esac
case ":${PATH}:" in *':/home/op/go/bin:'*) ;; *) PATH='/home/op/go/bin'"${PATH:+:${PATH}}" ;; esac
# agent
case ":${PATH}:" in *':/opt/agent/bin:'*) ;; *) PATH="${PATH:+${PATH}:}"'/opt/agent/bin' ;; esac
# zsh
case ":${PATH}:" in *':/opt/scripts:'*) ;; *) PATH="${PATH:+${PATH}:}"'/opt/scripts' ;; esac
export PATH
`
const composedSystemd = `# agent
DISABLE_AUTOUPDATER=1
# go-toolchain
GOPATH=/home/op/go
# zsh
EDITOR=vim
XDG_CONFIG_HOME=/home/op/.config
# go-toolchain, zsh
PATH=/home/op/go/bin:/usr/local/go/bin:/home/op/.local/bin:/home/op/bin${PATH:+:$PATH}
# agent, zsh
PATH=${PATH:+$PATH:}/opt/agent/bin:/opt/scripts
`
func TestTheEnvironmentRendersForAPOSIXShellByteForByte(t *testing.T) {
env, err := environmentOn(contributors(), operatorFacts)
if err != nil {
t.Fatal(err)
}
if got := env.posix(); got != composedPOSIX {
t.Fatalf("the POSIX rendering is\n%s\nnot\n%s", got, composedPOSIX)
}
}
func TestTheEnvironmentRendersForTheServiceManagerByteForByte(t *testing.T) {
env, err := environmentOn(contributors(), operatorFacts)
if err != nil {
t.Fatal(err)
}
if got := env.systemd(); got != composedSystemd {
t.Fatalf("the environment.d rendering is\n%s\nnot\n%s", got, composedSystemd)
}
}
// Sourcing twice changes nothing (ADR 0203 §3): a login shell that starts another reads the file
// again, and a PATH that grew each time would be the symptom. Run by a real `sh`, because the claim
// is about what a shell does with the file, not about what the file looks like.
func TestThePOSIXEnvironmentSourcedTwiceLeavesPATHAsOnce(t *testing.T) {
sh, err := exec.LookPath("sh")
if err != nil {
t.Skip("no sh on this machine")
}
script := "PATH=/usr/bin:/bin\n" + composedPOSIX + "once=$PATH\n" + composedPOSIX +
`[ "$PATH" = "$once" ] || { echo "changed: $once -> $PATH"; exit 1; }` + "\n" +
`echo "$PATH"; echo "$GOPATH"`
out, err := exec.Command(sh, "-c", script).CombinedOutput()
if err != nil {
t.Fatalf("sourcing twice: %v\n%s", err, out)
}
lines := strings.Split(strings.TrimSpace(string(out)), "\n")
want := "/home/op/go/bin:/usr/local/go/bin:/home/op/.local/bin:/home/op/bin:/usr/bin:/bin:/opt/agent/bin:/opt/scripts"
if lines[0] != want {
t.Fatalf("PATH is %s, not %s", lines[0], want)
}
if lines[1] != "/home/op/go" {
t.Fatalf("GOPATH was not exported: %q", lines[1])
}
// And an entry the account already has stays where it is, and once.
out, err = exec.Command(sh, "-c", "PATH=/opt/scripts:/usr/bin\n"+composedPOSIX+`echo "$PATH"`).CombinedOutput()
if err != nil {
t.Fatalf("%v\n%s", err, out)
}
if got := strings.TrimSpace(string(out)); got !=
"/home/op/go/bin:/usr/local/go/bin:/home/op/.local/bin:/home/op/bin:/opt/scripts:/usr/bin:/opt/agent/bin" {
t.Fatalf("an entry already on PATH was added again or moved: %s", got)
}
}
// The environment.d rendering, read by the service manager's own generator where this machine has
// one — the same reader an account's user manager runs, so the PATH it composes is the one asserted.
func TestTheServiceManagerReadsTheSystemdRenderingAsMeant(t *testing.T) {
generator := "/usr/lib/systemd/user-environment-generators/30-systemd-environment-d-generator"
if _, err := os.Stat(generator); err != nil {
t.Skip("no environment.d generator on this machine")
}
config := t.TempDir()
if err := os.MkdirAll(filepath.Join(config, "environment.d"), 0o755); err != nil {
t.Fatal(err)
}
if err := os.WriteFile(filepath.Join(config, "environment.d", "50-mesh.conf"), []byte(composedSystemd), 0o644); err != nil {
t.Fatal(err)
}
cmd := exec.Command(generator)
cmd.Env = []string{"PATH=/usr/bin:/bin", "HOME=" + config, "XDG_CONFIG_HOME=" + config}
out, err := cmd.CombinedOutput()
if err != nil {
t.Fatalf("%v\n%s", err, out)
}
want := "PATH=/home/op/go/bin:/usr/local/go/bin:/home/op/.local/bin:/home/op/bin:/usr/bin:/bin:/opt/agent/bin:/opt/scripts"
if !strings.Contains(string(out), want+"\n") || !strings.Contains(string(out), "GOPATH=/home/op/go\n") {
t.Fatalf("the service manager read\n%s", out)
}
}
// Nothing contributed renders nothing, in both formats — not an empty `export PATH`.
func TestNoContributionsRenderNothing(t *testing.T) {
env, err := environmentOn([]Manifest{{Module: "postgres"}}, operatorFacts)
if err != nil {
t.Fatal(err)
}
if env.posix() != "" || env.systemd() != "" {
t.Fatalf("an empty environment rendered %q and %q", env.posix(), env.systemd())
}
}
// A ${machine:…} fact the machine does not have is refused naming the module, as a file's is.
func TestAContributedFactTheMachineLacksIsRefused(t *testing.T) {
_, err := environmentOn(contributors(), map[string]string{"name": "server"})
if err == nil || !strings.Contains(err.Error(), "go-toolchain sets GOPATH") ||
!strings.Contains(err.Error(), "${machine:account-home}") {
t.Fatalf("a missing account home was not refused by name: %v", err)
}
}
// ADR 0203 §5: two modules setting one variable are refused, both named — neither silently wins.
func TestAVariableTwoModulesSetIsRefusedNamingBoth(t *testing.T) {
modules := append(contributors(), Manifest{Module: "neovim", Environment: &Environment{
Variables: map[string]string{"EDITOR": "nvim"}}})
_, err := environmentOn(modules, operatorFacts)
if err == nil || err.Error() != "neovim and zsh both set EDITOR on this machine; the account has one "+
"environment, so one of them must stop setting it (novox/hq ADR 0203)" {
t.Fatalf("a variable set twice was not refused naming both: %v", err)
}
// And at composition, whether or not the node holds the environment.
r := Resolution{Node: "workstation", Account: "op", Modules: modules}
if _, err := r.Declaration(Rendering{}); err == nil || !strings.Contains(err.Error(), "neovim and zsh both set EDITOR") {
t.Fatalf("composition accepted a variable set twice: %v", err)
}
}
// shells contributes code for several shells and slots, in no order.
func shells() []Manifest {
return []Manifest{
{Module: "zsh-syntax-highlighting", Shell: []ShellCode{
{For: "zsh", Slot: "last", Code: "source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh"},
}},
{Module: "powerlevel10k", Shell: []ShellCode{
{For: "zsh", Slot: "first", Code: "if [[ -r \"${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh\" ]]; then\n" +
" source \"${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh\"\nfi\n"},
{For: "zsh", Slot: "normal", Code: "source ~/.local/share/powerlevel10k/powerlevel10k.zsh-theme"},
{For: "zsh", Slot: "normal", Code: "[[ -f ~/.local/share/powerlevel10k/p10k.zsh ]] && source ~/.local/share/powerlevel10k/p10k.zsh"},
}},
{Module: "zsh-autosuggestions", Shell: []ShellCode{
{For: "zsh", Slot: "normal", Code: "source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh"},
{For: "bash", Slot: "normal", Code: "echo not for zsh"},
}},
{Module: "direnv", Shell: []ShellCode{
{For: "fish", Slot: "last", Code: "direnv hook fish | source"},
{For: "bash", Slot: "last", Code: "eval \"$(direnv hook bash)\""},
}},
}
}
// ADR 0204 §3: a slot holds that shell's code only, in module order, each module's pieces in the
// order it declared them under a line naming it; empty when nothing is contributed.
func TestShellCodeLandsInItsSlotInModuleOrderForItsShellOnly(t *testing.T) {
if got, want := shellCode(shells(), "zsh", "normal"), "# powerlevel10k\n"+
"source ~/.local/share/powerlevel10k/powerlevel10k.zsh-theme\n"+
"[[ -f ~/.local/share/powerlevel10k/p10k.zsh ]] && source ~/.local/share/powerlevel10k/p10k.zsh\n"+
"# zsh-autosuggestions\n"+
"source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh\n"; got != want {
t.Fatalf("zsh's normal slot is\n%s\nnot\n%s", got, want)
}
if got, want := shellCode(shells(), "zsh", "last"), "# zsh-syntax-highlighting\n"+
"source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh\n"; got != want {
t.Fatalf("zsh's last slot is\n%s\nnot\n%s", got, want)
}
if got, want := shellCode(shells(), "bash", "last"), "# direnv\neval \"$(direnv hook bash)\"\n"; got != want {
t.Fatalf("bash's last slot is %q, not %q", got, want)
}
if got := shellCode(shells(), "fish", "first"); got != "" {
t.Fatalf("a slot nobody contributed to holds %q", got)
}
}
// The holder of node-login-shell, as WP3's zsh module writes its block, with its own zsh around the
// slots — which holds `${…}` of the shell's own that no mesh pass may touch either.
func zshHolder() Manifest {
return Manifest{Module: "zsh", Claims: []Claim{{Name: LoginShellSeat, Scope: ScopeNode}},
Resources: []map[string]any{
{"id": "zshrc", "type": "file", "path": "${machine:account-home}/.zshrc", "content": "" +
"${shell:zsh:first}" +
"PROMPT='%n@%m ${PWD/#$HOME/~} '\n" +
"${shell:zsh:normal}" +
"alias ll='ls -l'\n" +
"${shell:zsh:last}"},
}}
}
// The case the ordering exists for: contributed zsh code full of `${…}` reaches the file byte for
// byte, because the shell's code is placed after every other placeholder pass and in one pass — a
// scanner for the mesh's placeholders that ran after it would read `${XDG_CACHE_HOME:-…}` and
// `${(%):-%n}` as the mesh's, or fill a `${machine:…}` some module wrote for its shell to see.
func TestShellCodeReachesTheHoldersFileByteForByte(t *testing.T) {
modules := append(shells(), zshHolder(), Manifest{Module: "sly", Shell: []ShellCode{
{For: "zsh", Slot: "last", Code: "echo ${machine:account-home} ${secret:x} ${shell:zsh:first} ${environment:posix}"},
}})
r := Resolution{Node: "workstation", Account: "op", Modules: modules}
out, err := r.Declaration(Rendering{})
if err != nil {
t.Fatal(err)
}
var zshrc map[string]any
for _, res := range out {
if res["id"] == "zsh.zshrc" {
zshrc = res
}
}
if zshrc == nil {
t.Fatalf("the holder's file was not composed: %v", out)
}
if zshrc["path"] != "/home/op/.zshrc" {
t.Fatalf("the holder's own placeholders were not filled first: %v", zshrc["path"])
}
want := "# powerlevel10k\n" +
"if [[ -r \"${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh\" ]]; then\n" +
" source \"${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh\"\nfi\n" +
"PROMPT='%n@%m ${PWD/#$HOME/~} '\n" +
"# powerlevel10k\n" +
"source ~/.local/share/powerlevel10k/powerlevel10k.zsh-theme\n" +
"[[ -f ~/.local/share/powerlevel10k/p10k.zsh ]] && source ~/.local/share/powerlevel10k/p10k.zsh\n" +
"# zsh-autosuggestions\n" +
"source /usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh\n" +
"alias ll='ls -l'\n" +
"# sly\n" +
"echo ${machine:account-home} ${secret:x} ${shell:zsh:first} ${environment:posix}\n" +
"# zsh-syntax-highlighting\n" +
"source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh\n"
if got := zshrc["content"]; got != want {
t.Fatalf("the holder's .zshrc is\n%s\nnot\n%s", got, want)
}
}
// The holder of node-environment places both renderings, and they are the same as rendered alone.
func TestTheEnvironmentHolderPlacesBothRenderings(t *testing.T) {
holder := Manifest{Module: "node-env", Claims: []Claim{{Name: EnvironmentSeat, Scope: ScopeNode}},
Resources: []map[string]any{
{"id": "posix", "type": "file", "path": "${machine:account-home}/.config/mesh/environment.sh",
"content": "# The mesh's environment.\n${environment:posix}"},
{"id": "systemd", "type": "file", "path": "${machine:account-home}/.config/environment.d/50-mesh.conf",
"content": "${environment:systemd}"},
}}
r := Resolution{Node: "workstation", Account: "op", Modules: append(contributors(), holder)}
out, err := r.Declaration(Rendering{})
if err != nil {
t.Fatal(err)
}
by := map[string]any{}
for _, res := range out {
by[res["id"].(string)] = res["content"]
}
if by["node-env.posix"] != "# The mesh's environment.\n"+composedPOSIX {
t.Fatalf("the POSIX file is\n%v", by["node-env.posix"])
}
if by["node-env.systemd"] != composedSystemd {
t.Fatalf("the environment.d file is\n%v", by["node-env.systemd"])
}
}
// ADR 0203 §5 and ADR 0204 §3: a placeholder outside the seat's holder is refused — by the parser,
// which is what the catalogue check and registration run, and again at composition, in the same words.
func TestAPlaceholderOutsideTheHolderIsRefused(t *testing.T) {
for _, c := range []struct{ content, want string }{
{"${environment:posix}", "toolchain's resource rc names ${environment:posix} and toolchain does not claim node-environment"},
{"${shell:zsh:normal}", "toolchain's resource rc names ${shell:zsh:normal} and toolchain does not claim node-login-shell"},
} {
raw := `{"module":"toolchain","resources":[{"id":"rc","type":"file","path":"/etc/rc","content":"` + c.content + `"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("the catalogue check accepted %s outside its holder: %v", c.content, err)
}
m := Manifest{Module: "toolchain", Resources: []map[string]any{
{"id": "rc", "type": "file", "path": "/etc/rc", "content": c.content}}}
r := Resolution{Node: "workstation", Account: "op", Modules: []Manifest{m}}
if _, err := r.Declaration(Rendering{}); err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("composition accepted %s outside its holder: %v", c.content, err)
}
}
}
// A key nobody renders is refused, not left in the file as a literal.
func TestAnUnknownPlaceholderKeyIsRefused(t *testing.T) {
for _, c := range []struct{ content, want string }{
{"${environment:foo}", "names ${environment:foo}; the environment is ${environment:posix} or ${environment:systemd}"},
{"${shell:zsh:middle}", "names ${shell:zsh:middle}; shell code is ${shell:<shell>:<slot>}"},
{"${shell:tcsh:first}", "names ${shell:tcsh:first}; shell code is ${shell:<shell>:<slot>}"},
{"${shell:zsh}", "names ${shell:zsh}; shell code is ${shell:<shell>:<slot>}"},
} {
raw := `{"module":"holder","claims":[{"name":"node-environment","scope":"node"},{"name":"node-login-shell","scope":"node"}],` +
`"resources":[{"id":"rc","type":"file","path":"/etc/rc","content":"` + c.content + `"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("%s was accepted: %v", c.content, err)
}
}
// And outside a file's content, where nothing could be placed.
raw := `{"module":"holder","claims":[{"name":"node-environment","scope":"node"}],` +
`"resources":[{"id":"rc","type":"file","path":"/etc/${environment:posix}","content":"x"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil ||
!strings.Contains(err.Error(), "names ${environment:posix} in its path; the environment and the shell's code are placed only in a file's content") {
t.Errorf("a placeholder in a path was accepted: %v", err)
}
}
// What ADR 0203 §2 allows a contribution to say, refused at parse when it says anything else.
func TestAMalformedEnvironmentIsRefusedAtParse(t *testing.T) {
for _, c := range []struct{ environment, want string }{
{`{"variables":{"1X":"a"}}`, `tool sets the variable "1X", which is not a name a shell accepts`},
{`{"variables":{"MY-VAR":"a"}}`, `tool sets the variable "MY-VAR", which is not a name a shell accepts`},
{`{"variables":{"PATH":"/bin"}}`, `tool sets PATH as a variable; a module adds an entry under environment.path`},
{`{"variables":{"A":"$HOME/x"}}`, `tool sets A to "$HOME/x", which holds a $ that is not one of the machine's ${machine:…} facts`},
{`{"variables":{"A":"${HOME}/x"}}`, `tool sets A to "${HOME}/x", which holds a $`},
{`{"variables":{"A":"it's"}}`, `tool sets A to "it's", which holds a quote`},
{`{"variables":{"A":"say \"hi\""}}`, `which holds a quote`},
{`{"variables":{"A":"a\\b"}}`, `which holds a backslash`},
{`{"variables":{"A":"a\nb"}}`, `which holds a line break`},
{`{"variables":{"A":"a\u0000b"}}`, `which holds a NUL`},
{`{"path":[{"entry":"","at":"start"}]}`, `tool's PATH entry 1 names no directory`},
{`{"path":[{"entry":"/a:/b","at":"start"}]}`, `tool puts "/a:/b" on PATH, which holds a colon`},
{`{"path":[{"entry":"$HOME/bin","at":"start"}]}`, `tool puts "$HOME/bin" on PATH, which holds a $`},
{`{"path":[{"entry":"/a","at":"middle"}]}`, `tool puts "/a" on PATH at "middle"; an entry goes at "start" or "end"`},
{`{"path":[{"entry":"/a"}]}`, `tool puts "/a" on PATH at ""`},
{`{"path":[{"entry":"/a","at":"start"},{"entry":"/a","at":"end"}]}`, `tool puts "/a" on PATH twice`},
{`{"variables":{"A":"x"},"paths":[]}`, `unknown field "paths"`},
} {
_, err := ParseManifest([]byte(`{"module":"tool","environment":` + c.environment + `}`))
if err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("%s: want %q, got %v", c.environment, c.want, err)
}
}
// What is allowed: a literal, and the machine's own facts.
if _, err := ParseManifest([]byte(`{"module":"tool","environment":{` +
`"variables":{"GOPATH":"${machine:account-home}/go","DISABLE_X":"1","ANSWER":"a b+c=d"},` +
`"path":[{"entry":"${machine:account-home}/go/bin","at":"start"},{"entry":"/opt/x","at":"end"}]}}`)); err != nil {
t.Fatalf("a well-formed environment was refused: %v", err)
}
}
func TestMalformedShellCodeIsRefusedAtParse(t *testing.T) {
for _, c := range []struct{ shell, want string }{
{`[{"for":"tcsh","slot":"normal","code":"x"}]`, `tool's shell code 1 is for "tcsh"; the shells are zsh, bash, fish`},
{`[{"for":"zsh","slot":"middle","code":"x"}]`, `tool's shell code 1 goes in the slot "middle"; the slots are first, normal, last`},
{`[{"for":"zsh","slot":"last","code":"x"},{"for":"zsh","slot":"last","code":" \n"}]`, `tool's shell code 2 has no code`},
{`[{"for":"zsh","slot":"last","code":"x","order":1}]`, `unknown field "order"`},
} {
_, err := ParseManifest([]byte(`{"module":"tool","shell":` + c.shell + `}`))
if err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("%s: want %q, got %v", c.shell, c.want, err)
}
}
// The code itself is never judged: a shell's own `${…}` is not the mesh's.
if _, err := ParseManifest([]byte(`{"module":"tool","shell":[{"for":"zsh","slot":"first",` +
`"code":"source \"${XDG_CACHE_HOME:-$HOME/.cache}/p10k-instant-prompt-${(%):-%n}.zsh\""}]}`)); err != nil {
t.Fatalf("shell code was judged as if it were the mesh's: %v", err)
}
}
// ADR 0203 §1 and ADR 0204 §1: both seats are the mesh's own, held once per machine; the login
// shell's contract is `execute`, described and with a schema an agent can call.
func TestTheSeatTableCarriesTheEnvironmentAndTheLoginShell(t *testing.T) {
env, ok := SeatNamed("node-environment")
if !ok || env.Scope != ScopeNode || env.Decision != "novox/hq ADR 0203" ||
len(env.Serves)+len(env.Accepts)+len(env.Emits) != 0 || env.Delivers != "" {
t.Fatalf("node-environment is not a node seat with no protocol: %+v (defined %v)", env, ok)
}
shell, ok := SeatNamed("node-login-shell")
if !ok || shell.Scope != ScopeNode || shell.Decision != "novox/hq ADR 0204" {
t.Fatalf("node-login-shell is not a node seat: %+v (defined %v)", shell, ok)
}
if len(shell.Serves) != 1 || shell.Serves[0].Name != "execute" || shell.Serves[0].Description == "" {
t.Fatalf("the login shell serves %+v, not execute alone", shell.Serves)
}
props, _ := shell.Serves[0].Input["properties"].(map[string]any)
required, _ := shell.Serves[0].Input["required"].([]string)
if _, has := props["command"]; !has || len(required) != 1 || required[0] != "command" {
t.Fatalf("execute does not require a command: %v", shell.Serves[0].Input)
}
if _, has := props["timeout_seconds"]; !has {
t.Fatalf("execute takes no timeout: %v", props)
}
}
// ADR 0204 §1: the login shell is the mesh's, so no module declares it — neither under the mesh's
// name nor under the name a module gave it before.
func TestNoModuleMayDeclareTheLoginShell(t *testing.T) {
for _, n := range []string{"login-shell", "node-login-shell", "node-environment"} {
raw := `{"module":"zsh","seats":[{"name":"` + n + `","scope":"node","serves":["execute"]}],"tools":["execute"]}`
_, err := ParseManifest([]byte(raw))
if err == nil {
t.Errorf("a module declaring %q was accepted", n)
}
}
got := strings.Join(declaredSeatProblems(Manifest{Module: "zsh",
DefinesSeats: []SeatDeclaration{{Name: "login-shell", Scope: ScopeNode}}}), "; ")
if !strings.Contains(got, `zsh declares a seat named "login-shell"; the login shell is the mesh's own seat node-login-shell`) {
t.Fatalf("declaring login-shell was not refused by name: %q", got)
}
// And a shell module claiming the mesh's seat, serving execute, is what the seat is for.
m, err := ParseManifest([]byte(`{"module":"zsh","tools":["execute"],` +
`"claims":[{"name":"node-login-shell","scope":"node"}]}`))
if err != nil {
t.Fatal(err)
}
if err := CanHold(m, Seat{Name: LoginShellSeat, Scope: ScopeNode, Serves: loginShellVerbs()}); err != nil {
t.Fatalf("a shell module claiming the seat cannot hold it: %v", err)
}
}
+17 -23
View File
@@ -1,7 +1,6 @@
package catalogue
import (
"encoding/json"
"fmt"
"os"
"reflect"
@@ -171,7 +170,7 @@ func TestTheForgeHoldsTheNpmAndGitSeats(t *testing.T) {
// **And the forge's own address follows it**, composed from the manifest in the catalogue beside
// this checkout (novox/hq 04-ISSUES/088).
//
// The forge is reached a third way that neither test above covers: by its own code, over the
// The forge is reached a third way that neither test above covers: by its own sidecar, over the
// machine's loopback, told where to go in its environment. The `2999:3000` mapping that lets the
// forge go on binding 3000 does nothing for a caller dialling the machine — so a literal there is
// wrong on every node whose assignment differs, and wrong for a second reason on a node given the
@@ -179,13 +178,13 @@ func TestTheForgeHoldsTheNpmAndGitSeats(t *testing.T) {
// in an `env` at all is a declaration, not a manifest.
func TestTheForgesOwnAddressFollowsThePortTheNodeGaveIt(t *testing.T) {
forge, err := catalogueManifest(t, "gitea").Resolve([]Built{{
Name: "code", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "gitea/code/blobs/" + bundleDigest, Digest: bundleDigest,
Name: "runtime", Kind: ArtifactImage,
Reference: "registry.example/gitea-runtime@sha256:" + strings.Repeat("a", 64),
}})
if err != nil {
t.Fatalf("the forge's manifest does not resolve against its own build: %v", err)
}
r := Resolution{Node: "anchor", Modules: []Manifest{forge, theRuntime(t)}, Needs: []Needed{
r := Resolution{Node: "anchor", Modules: []Manifest{forge}, Needs: []Needed{
{Name: "postgres-database", For: "gitea", From: "anchor", At: "127.0.0.1",
Serves: map[string]any{"port": float64(5432)}, Sealed: "sealed-db"},
{Name: "route", For: "gitea", From: "anchor"},
@@ -195,8 +194,8 @@ func TestTheForgesOwnAddressFollowsThePortTheNodeGaveIt(t *testing.T) {
// The number this node was given for the forge — the one the machine it is about to run on
// already publishes.
out, err := r.Declaration(Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-broker"}},
out, err := r.Declaration(Rendering{
Needed: map[string]map[string]string{"gitea": {"broker": "sealed-broker"}},
Given: map[string]map[int]int{"gitea": {3000: 2999}},
})
if err != nil {
@@ -211,19 +210,14 @@ func TestTheForgesOwnAddressFollowsThePortTheNodeGaveIt(t *testing.T) {
if published := fmt.Sprint(server["ports"]); !strings.Contains(published, "2999:3000") {
t.Fatalf("the forge is not published on the port this node gave it: %v", server["ports"])
}
// The forge's own code runs in the node's runtime (novox/hq ADR 0198), given its words there.
runtime := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())
runtime := fileNamed(out, "gitea.runtime")
if runtime == nil {
t.Fatalf("the node's runtime is not in the declaration: %v", ids(out))
t.Fatalf("the forge's sidecar is not in the declaration: %v", out)
}
env, _ := runtime["env"].(map[string]string)
var given map[string]map[string]string
if err := json.Unmarshal([]byte(env[RuntimeToolEnv]), &given); err != nil {
t.Fatalf("the runtime's %s is not JSON: %q", RuntimeToolEnv, env[RuntimeToolEnv])
}
if given["gitea"]["MESH_GITEA_URL"] != "http://127.0.0.1:2999" {
t.Fatalf("the forge's code dials %v while the machine publishes the forge on 2999 — "+
"whatever reads it dials a dead port", given["gitea"]["MESH_GITEA_URL"])
env, _ := runtime["env"].(map[string]any)
if env["MESH_GITEA_URL"] != "http://127.0.0.1:2999" {
t.Fatalf("the forge's sidecar dials %v while the machine publishes the forge on 2999 — "+
"whatever reads it dials a dead port", env["MESH_GITEA_URL"])
}
}
@@ -235,13 +229,13 @@ func declaredGiteaSsh(t *testing.T, given map[int]int) map[string]any {
t.Helper()
forge := catalogueManifest(t, "gitea")
resolved, err := forge.Resolve([]Built{{
Name: "code", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "gitea/code/blobs/" + bundleDigest, Digest: bundleDigest,
Name: "runtime", Kind: ArtifactImage,
Reference: "registry.example/gitea-runtime@sha256:" + strings.Repeat("a", 64),
}})
if err != nil {
t.Fatalf("the forge's manifest does not resolve against its own build: %v", err)
}
r := Resolution{Node: "anchor", Modules: []Manifest{resolved, theRuntime(t)}, Needs: []Needed{
r := Resolution{Node: "anchor", Modules: []Manifest{resolved}, Needs: []Needed{
{Name: "postgres-database", For: "gitea", From: "anchor", At: "127.0.0.1",
Serves: map[string]any{"port": float64(5432)}, Sealed: "sealed-db"},
{Name: "route", For: "gitea", From: "anchor"},
@@ -252,8 +246,8 @@ func declaredGiteaSsh(t *testing.T, given map[int]int) map[string]any {
for k, v := range given {
givenPorts[k] = v
}
out, err := r.Declaration(Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-broker"}},
out, err := r.Declaration(Rendering{
Needed: map[string]map[string]string{"gitea": {"broker": "sealed-broker"}},
Ports: map[string]map[int]int{"gitea": givenPorts},
Given: map[string]map[int]int{"gitea": given},
})
-29
View File
@@ -1,29 +0,0 @@
package catalogue
import (
"os"
"regexp"
"testing"
)
// novox/hq issue 223: genesis raises the controller as a container built from this repository's own
// Dockerfile, with no build arguments — the manifest no longer builds an image, so nothing passes a
// base in. The Dockerfile's own default must therefore be a Go that builds this module, pinned by
// digest, and the replacement the manifest's process names must be the container genesis raises.
func TestGenesisCanBuildTheControllersImageAsItStands(t *testing.T) {
raw, err := os.ReadFile("../../Dockerfile")
if err != nil {
t.Fatal(err)
}
if !regexp.MustCompile(`(?m)^ARG GO_BASE=golang@sha256:[0-9a-f]{64}$`).Match(raw) {
t.Fatal("the Dockerfile's default Go base is not pinned by digest; genesis builds it with no arguments")
}
makefile, err := os.ReadFile("../../Makefile")
if err != nil {
t.Fatal(err)
}
pin := regexp.MustCompile(`golang@sha256:[0-9a-f]{64}`)
if string(pin.Find(raw)) != string(pin.Find(makefile)) {
t.Errorf("the Dockerfile and the Makefile build on different Go: %s, %s", pin.Find(raw), pin.Find(makefile))
}
}
@@ -1,103 +0,0 @@
package catalogue
import (
"strings"
"testing"
)
// A grant secret is read by whatever provisions, and that stopped being root (novox/hq issue 225).
//
// The mesh seals one credential per consumer beside the provider's contributions file. The
// provider's harness reads both: the file to learn who asked, the secret to set their password.
// While a module's own code ran in a container as root, a root-owned 0600 file was readable by
// the thing that needed it. ADR 0198 moved that code under the node's runtime, which runs as the
// operator's account — and the secret stayed root's.
//
// **The cost was silence.** The harness says `secret not readable yet`, which is true and
// ordinary on the first pass, so four thousand refusals in three hours read as patience. No user
// was ever created, and two consumers crash-looped against a database that had never heard of
// them.
//
// The same reasoning is already written for a module's *own* secrets, three hundred lines above:
// "a root-owned 0600 file is one that process cannot read". This is that rule reaching the other
// kind of secret the mesh writes for a module.
// aProviderWithABundle is a provider whose code is a bundle the node's runtime runs — the shape
// every TypeScript provisioner has since ADR 0198.
func aProviderWithABundle() Manifest {
return Manifest{
Module: "mongodb", Version: "1",
Provides: FromAnywhere("mongodb-database"),
Receives: map[string]string{"mongodb-database": "/var/lib/mongodb/grants/mesh.json"},
Grants: map[string]string{"mongodb-database": "/var/lib/mongodb/grants"},
Bundles: []Bundle{{Name: "code", Language: "typescript"}},
Resources: []map[string]any{{
"id": "server", "type": "container", "name": "mongodb-server",
"image": "mongo@sha256:" + strings.Repeat("a", 64),
}},
}
}
func TestAGrantSecretIsOwnedByTheAccountThatProvisions(t *testing.T) {
r, err := Resolve(shelf(aProviderWithABundle()), []string{"mongodb"}, reachable(), World{})
if err != nil {
t.Fatal(err)
}
r.Account = "operator"
out, err := r.Declaration(Rendering{Grants: []Grant{{
Provision: "mongodb-database", Consumer: "workstation", From: "photos", Slug: "photos",
Values: map[string]any{}, Sealed: "c2VhbGVk",
}}})
if err != nil {
t.Fatal(err)
}
var secret map[string]any
for _, res := range out {
if res["type"] == "file" && strings.HasSuffix(fmtPath(res), ".secret") {
secret = res
}
}
if secret == nil {
t.Fatalf("no grant secret was composed at all: %v", out)
}
if got := secret["owner"]; got != "operator" {
t.Fatalf("the grant secret at %v belongs to %v; the provisioner runs as %q and a "+
"root-owned 0600 file is one it cannot read — which is silent, because the harness "+
"calls it \"not readable yet\"", fmtPath(secret), got, "operator")
}
}
// And a provider whose code still runs in a container keeps the owner it declares, so this
// changes nothing for the modules the runtime has not taken.
func TestAContainerProvidersGrantSecretKeepsItsDeclaredOwner(t *testing.T) {
m := aProviderWithABundle()
m.Bundles = nil
m.SecretsOwner = "65534:65534"
r, err := Resolve(shelf(m), []string{"mongodb"}, reachable(), World{})
if err != nil {
t.Fatal(err)
}
r.Account = "operator"
out, err := r.Declaration(Rendering{Grants: []Grant{{
Provision: "mongodb-database", Consumer: "workstation", From: "photos", Slug: "photos",
Values: map[string]any{}, Sealed: "c2VhbGVk",
}}})
if err != nil {
t.Fatal(err)
}
for _, res := range out {
if res["type"] == "file" && strings.HasSuffix(fmtPath(res), ".secret") {
if got := res["owner"]; got != "65534:65534" {
t.Fatalf("a container provider's grant secret belongs to %v, not what it declares", got)
}
return
}
}
t.Fatal("no grant secret was composed")
}
func fmtPath(r map[string]any) string {
p, _ := r["path"].(string)
return p
}
-109
View File
@@ -1,109 +0,0 @@
package catalogue
// The graphical session's seats (novox/hq ADR 0208): one module per piece of software, each piece's
// role a node seat in the mesh's own set, so i3 and sway, xterm and foot, rofi and dmenu compete for
// a role rather than each inventing one — and a machine running two of one role is refused at
// assignment instead of found by two bars on one screen.
const (
LoginManagerSeat = "node-login-manager"
DisplayServerSeat = "node-display-server"
DisplaySessionSeat = "node-display-session"
TerminalEmulatorSeat = "node-terminal-emulator"
LauncherSeat = "node-launcher"
NotifierSeat = "node-notifier"
LockScreenSeat = "node-lock-screen"
ClipboardSeat = "node-clipboard"
BarSeat = "node-bar"
CompositorSeat = "node-compositor"
SecretServiceSeat = "node-secret-service"
)
// graphicalSessionSeats are the eleven, in the order ADR 0208's table reads, each with the verbs
// research 026/05 starts it with. Three have none yet: the bar, the compositor and the secret
// service are roles a second holder competes for, and nothing has needed to ask them anything.
func graphicalSessionSeats() []Seat {
const decided = "novox/hq ADR 0208"
return []Seat{
{Name: LoginManagerSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "sessions", Description: "The sessions the login manager offers on this machine, and which " +
"one the operator account starts by default.",
Input: schema(map[string]string{}, nil)},
}},
{Name: DisplayServerSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "displays", Description: "The monitors connected now, each with its identity, its modes and " +
"where it is placed; and the layout profile in force, if one matches.",
Input: schema(map[string]string{}, nil)},
// Profiles are keyed by the monitors' identities and are the operator's data (ADR 0208 §6).
{Name: "layout", Description: "The monitor layout profiles, keyed by the connected monitors' " +
"identities: list them, save the current arrangement under a name, or apply one.",
Input: withEnum(schema(map[string]string{
"action": "list, save or apply",
"name": "the profile to save or apply (save and apply only)",
}, []string{"action"}), "action", "list", "save", "apply")},
}},
// It receives window-manager configuration lines from every other module (novox/hq ADR 0212):
// bindings, start-up commands, rules — placed by the session's holder, never written into
// its directory by the contributor.
{Name: DisplaySessionSeat, Scope: ScopeNode, Decision: decided,
Receives: []Receivable{{Kind: "config", Comment: "#"}}, Serves: []Verb{
{Name: "reload", Description: "Reload the session's configuration in place, keeping its windows.",
Input: schema(map[string]string{}, nil)},
{Name: "workspaces", Description: "The session's workspaces: each one's name, output, and whether " +
"it is visible or focused.",
Input: schema(map[string]string{}, nil)},
{Name: "windows", Description: "The session's windows: each one's title, class, workspace and " +
"whether it has focus; narrowed to one workspace when named.",
Input: schema(map[string]string{"workspace": "one workspace (optional)"}, nil)},
}},
{Name: TerminalEmulatorSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "open", Description: "Open a terminal window in the operator's session, running a command " +
"or the login shell, in a directory or the account's home.",
Input: schema(map[string]string{
"command": "what to run in it (optional; the login shell when absent)",
"directory": "where it starts (optional; the account's home when absent)",
}, nil)},
}},
{Name: LauncherSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "menu", Description: "Put a menu of choices in front of the operator and answer with the " +
"one chosen, or nothing when the menu was dismissed — the dmenu-compatible contract.",
Input: map[string]any{"type": "object", "required": []string{"choices"},
"properties": map[string]any{
"choices": map[string]any{"type": "array", "items": map[string]any{"type": "string"},
"description": "the lines to choose between, in order"},
"prompt": map[string]any{"type": "string", "description": "what the menu asks (optional)"},
}}},
}},
{Name: NotifierSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "send", Description: "Show the operator a notification.",
Input: withEnum(schema(map[string]string{
"title": "the notification's summary",
"body": "its text (optional)",
"urgency": "low, normal (the default) or critical",
}, []string{"title"}), "urgency", "low", "normal", "critical")},
{Name: "history", Description: "The notifications shown lately, newest first.",
Input: schema(map[string]string{"limit": "how many (optional, default 20)"}, nil)},
}},
{Name: LockScreenSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "lock", Description: "Lock the operator's session now.",
Input: schema(map[string]string{}, nil)},
}},
{Name: ClipboardSeat, Scope: ScopeNode, Decision: decided, Serves: []Verb{
{Name: "history", Description: "What the clipboard held lately, newest first.",
Input: schema(map[string]string{"limit": "how many (optional, default 20)"}, nil)},
{Name: "copy", Description: "Put text on the operator's clipboard.",
Input: schema(map[string]string{"text": "the text"}, []string{"text"})},
}},
{Name: BarSeat, Scope: ScopeNode, Decision: decided},
{Name: CompositorSeat, Scope: ScopeNode, Decision: decided},
{Name: SecretServiceSeat, Scope: ScopeNode, Decision: decided},
}
}
// withEnum narrows one string property of a schema to the values it may take, so a caller is told
// the choices by the schema rather than by a refusal.
func withEnum(s map[string]any, property string, values ...string) map[string]any {
props := s["properties"].(map[string]any)
p := props[property].(map[string]any)
p["enum"] = values
return s
}
@@ -1,213 +0,0 @@
package catalogue
import (
"encoding/json"
"reflect"
"strings"
"testing"
)
// Defends novox/hq ADR 0208: the graphical session is one module per piece, on the mesh's seats.
// §2: the eleven roles are the mesh's own node seats, each with the verbs it starts with.
func TestTheGraphicalSessionsSeatsAreTheMeshsOwnWithTheirVerbs(t *testing.T) {
want := map[string][]string{
LoginManagerSeat: {"sessions"},
DisplayServerSeat: {"displays", "layout"},
DisplaySessionSeat: {"reload", "workspaces", "windows"},
TerminalEmulatorSeat: {"open"},
LauncherSeat: {"menu"},
NotifierSeat: {"send", "history"},
LockScreenSeat: {"lock"},
ClipboardSeat: {"history", "copy"},
BarSeat: nil,
CompositorSeat: nil,
SecretServiceSeat: nil,
}
for name, verbs := range want {
s, ok := SeatNamed(name)
if !ok {
t.Errorf("%s is not in the mesh's set", name)
continue
}
if s.Scope != ScopeNode || s.Decision != "novox/hq ADR 0208" {
t.Errorf("%s is %s-scoped under %q", name, s.Scope, s.Decision)
}
var got []string
for _, v := range s.Serves {
got = append(got, v.Name)
if v.Description == "" || v.Input["type"] != "object" {
t.Errorf("%s.%s has no description or no object schema", name, v.Name)
}
}
if !reflect.DeepEqual(got, verbs) {
t.Errorf("%s serves %v, want %v", name, got, verbs)
}
}
// The launcher's menu takes a list, and the layout verb says its actions.
menu, _ := SeatNamed(LauncherSeat)
choices := menu.Serves[0].Input["properties"].(map[string]any)["choices"].(map[string]any)
if choices["type"] != "array" {
t.Errorf("menu's choices are %v, not a list", choices["type"])
}
display, _ := SeatNamed(DisplayServerSeat)
action := display.Serves[1].Input["properties"].(map[string]any)["action"].(map[string]any)
if !reflect.DeepEqual(action["enum"], []string{"list", "save", "apply"}) {
t.Errorf("layout's actions are %v", action["enum"])
}
// And they survive the store's JSON, which is where the live set comes from.
if _, err := json.Marshal(graphicalSessionSeats()); err != nil {
t.Fatal(err)
}
}
// §2: a module may claim one of them, and may not declare it as its own.
func TestNoModuleMayDeclareAGraphicalSessionSeat(t *testing.T) {
raw := `{"module":"xorg","seats":[{"name":"node-display-server","scope":"node"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), "mesh's own namespace") {
t.Fatalf("a module declared node-display-server as its own: %v", err)
}
}
func displayServer(name, display string, claims ...string) Manifest {
m := Manifest{Module: name, Provides: []Offer{{Name: display, Reach: ReachMachine}}}
for _, c := range claims {
m.Claims = append(m.Claims, Claim{Name: c})
}
return m
}
func windowManager() Manifest {
return Manifest{Module: "i3", Requires: []string{"x11-display"}}
}
// §3: a display is resolved on the requiring module's own node.
func TestAMachineReachRequirementResolvesToTheProviderOnItsOwnNode(t *testing.T) {
cat := shelf(windowManager(), displayServer("xorg", "x11-display", DisplayServerSeat))
got, err := Resolve(cat, []string{"xorg", "i3"}, workstation(), World{})
if err != nil {
t.Fatalf("i3 beside xorg did not resolve: %v", err)
}
if !reflect.DeepEqual(names(got), []string{"xorg", "i3"}) && !reflect.DeepEqual(names(got), []string{"i3", "xorg"}) {
t.Errorf("resolved %v", names(got))
}
}
// §3: never answered by installing a provider, and never by another machine's.
func TestAMachineReachRequirementIsNotPulledInNorAnsweredFromAnotherNode(t *testing.T) {
cat := shelf(windowManager(),
displayServer("xorg", "x11-display", DisplayServerSeat),
displayServer("xwayland", "x11-display"))
// Another machine runs xorg and says so to the world; it does not count.
world := World{Offered: map[string][]Provider{
"x11-display": {{Node: "laptop", At: "laptop.mesh", Module: "xorg"}}}}
_, err := Resolve(cat, []string{"i3"}, workstation(), world)
if err == nil {
t.Fatal("i3 resolved on a machine with no display of its own")
}
for _, want := range []string{
`"x11-display" is wanted by i3`, "usable only on the machine that provides it",
"assign one to workstation", "xorg (holds node-display-server)", "xwayland",
} {
if !strings.Contains(err.Error(), want) {
t.Errorf("the refusal does not say %q:\n%v", want, err)
}
}
// With a single provider in the catalogue too: one candidate is still not a choice to make
// for somebody, unlike a node-scoped provision without the machine's reach.
_, err = Resolve(shelf(windowManager(), displayServer("xorg", "x11-display", DisplayServerSeat)),
[]string{"i3"}, workstation(), World{})
if err == nil {
t.Fatal("xorg was pulled in for i3")
}
// Not in the first pass, whose refusals take the machine off the network.
if _, err := Resolve(cat, []string{"i3"}, workstation(), World{Unchecked: true}); err != nil {
t.Errorf("the first pass refused: %v", err)
}
}
func TestTheMachinesReachIsAProvisionsOnlyReachAndIsNodeScoped(t *testing.T) {
for _, c := range []struct{ provides, want string }{
{`{"name":"x11-display","reach":"internal"}`, `with reach "internal"; a provision's reach is "machine" or nothing`},
{`{"name":"x11-display","scope":"mesh","reach":"machine"}`, `at scope "mesh" with the machine's reach`},
} {
_, err := ParseManifest([]byte(`{"module":"xorg","provides":[` + c.provides + `]}`))
if err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("%s: want %q, got %v", c.provides, c.want, err)
}
}
m, err := ParseManifest([]byte(`{"module":"xorg","provides":[{"name":"x11-display","reach":"machine"}]}`))
if err != nil {
t.Fatal(err)
}
if !m.Provides[0].MachineReach() {
t.Fatal("the reach was not read")
}
back, _ := json.Marshal(m.Provides[0])
if string(back) != `{"name":"x11-display","reach":"machine"}` {
t.Errorf("written back as %s", back)
}
}
func TestACatalogueDisagreeingAboutAProvisionsReachIsRefused(t *testing.T) {
cat := shelf(windowManager(), displayServer("xorg", "x11-display"),
Manifest{Module: "fake-x", Provides: Offers("x11-display")})
_, err := Resolve(cat, []string{"xorg", "i3"}, workstation(), World{})
if err == nil || !strings.Contains(err.Error(), `the catalogue disagrees about "x11-display"`) {
t.Fatalf("a provision with and without the machine's reach gave %v", err)
}
}
// §4: xinitrc and xresources slots, placed by the display server's holder alone.
func TestTheSessionsFilesArePlacedByTheDisplayServersHolderAlone(t *testing.T) {
xorg := Manifest{Module: "xorg", Claims: []Claim{{Name: DisplayServerSeat}},
Shell: []ShellCode{{For: "xinitrc", Slot: "first", Code: "xset s off"}},
Resources: []map[string]any{
{"id": "xinitrc", "type": "file", "path": "/home/op/.xinitrc",
"content": "${shell:xinitrc:first}${shell:xinitrc:normal}${shell:xinitrc:last}"},
{"id": "xresources", "type": "file", "path": "/home/op/.Xresources",
"content": "${shell:xresources:normal}"},
}}
i3 := Manifest{Module: "i3", Shell: []ShellCode{{For: "xinitrc", Slot: "last", Code: "exec i3"}}}
theme := Manifest{Module: "theme", Shell: []ShellCode{
{For: "xresources", Slot: "normal", Code: "Xft.dpi: 96"},
{For: "zsh", Slot: "normal", Code: "not for the session"},
}}
r := Resolution{Node: "workstation", Account: "op", Modules: []Manifest{xorg, i3, theme}}
out, err := r.Declaration(Rendering{})
if err != nil {
t.Fatal(err)
}
by := map[string]any{}
for _, res := range out {
by[res["id"].(string)] = res["content"]
}
if got := by["xorg.xinitrc"]; got != "# xorg\nxset s off\n# i3\nexec i3\n" {
t.Errorf("the .xinitrc is %q", got)
}
if got := by["xorg.xresources"]; got != "# theme\nXft.dpi: 96\n" {
t.Errorf("the .Xresources is %q", got)
}
// The contributions parse; the placeholders parse only in the holder.
if _, err := ParseManifest([]byte(`{"module":"i3","shell":[{"for":"xinitrc","slot":"last","code":"exec i3"},` +
`{"for":"xresources","slot":"normal","code":"i3.font: x"}]}`)); err != nil {
t.Fatalf("a session contribution was refused: %v", err)
}
for _, c := range []struct{ claims, content, want string }{
{``, "${shell:xinitrc:normal}", "does not claim node-display-server; every module's xinitrc is placed by the display server's holder alone"},
{`{"name":"node-login-shell"}`, "${shell:xresources:normal}", "does not claim node-display-server"},
{`{"name":"node-display-server"}`, "${shell:zsh:normal}", "does not claim node-login-shell"},
{`{"name":"node-display-server"}`, "${shell:xsession:normal}", "the session's file one of xinitrc, xresources"},
} {
raw := `{"module":"holder","claims":[` + c.claims + `],"resources":[{"id":"rc","type":"file","path":"/etc/rc","content":"` +
c.content + `"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), c.want) {
t.Errorf("%s with claims [%s]: want %q, got %v", c.content, c.claims, c.want, err)
}
}
if _, err := ParseManifest([]byte(`{"module":"xorg","claims":[{"name":"node-display-server"}],` +
`"resources":[{"id":"rc","type":"file","path":"/home/op/.xinitrc","content":"${shell:xinitrc:last}"}]}`)); err != nil {
t.Errorf("the display server's holder could not place the session's slots: %v", err)
}
}
+2 -12
View File
@@ -1,8 +1,6 @@
package catalogue
import (
"crypto/sha256"
"encoding/hex"
"fmt"
"sort"
"strings"
@@ -45,16 +43,8 @@ func jailsInto(modules []Manifest, j *Jailing) []map[string]any {
out := make([]map[string]any, 0, len(jails)+1)
for _, d := range jails {
// **The filter's digest rides in the jail file.** fail2ban is restarted when this file
// changes, and the filter is a file of its own: a module that changed only what a failure
// looks like rewrote the filter on disk and left the running jail on the old pattern, with
// nothing said (novox/hq issue 191's rollout found it on gitea's sshd). Naming the filter's
// digest here makes a changed pattern a changed jail file, so the restart the service
// already takes on it covers the filter too.
sum := sha256.Sum256([]byte(d.jail.Failregex))
fmt.Fprintf(&composed, "\n# from %s, filter %s\n[%s]\nenabled = true\nfilter = %s\n%s\n",
d.module, hex.EncodeToString(sum[:])[:12], d.jail.Name, d.jail.Name,
strings.TrimRight(d.jail.Jail, "\n"))
fmt.Fprintf(&composed, "\n# from %s\n[%s]\nenabled = true\nfilter = %s\n%s\n",
d.module, d.jail.Name, d.jail.Name, strings.TrimRight(d.jail.Jail, "\n"))
// The filter is a file of its own, named as the jail's filter= references it.
out = append(out, map[string]any{
"id": "filter-" + d.jail.Name,
-26
View File
@@ -44,29 +44,3 @@ func TestTheComposedJailFileIsWrittenEvenWhenEmpty(t *testing.T) {
t.Fatalf("the empty composed jail file was not written alone: %v", files)
}
}
// A changed pattern restarts fail2ban (novox/hq issue 191's rollout): the service restarts when the
// composed jail file changes, and the filter is a file of its own, so the jail file names the
// filter's digest. Changing only the failregex must change the jail file; the same pattern must not.
func TestAChangedFilterChangesTheJailFile(t *testing.T) {
jailFile := func(failregex string) string {
modules := []Manifest{
{Module: "fail2ban", Jailing: &Jailing{Into: "/etc/fail2ban/jail.d/mesh.conf", FilterInto: "/etc/fail2ban/filter.d"}},
{Module: "gitea", Jails: []Jail{{Name: "gitea", Failregex: failregex, Jail: "port = 222"}}},
}
for _, f := range jailsInto(modules, modules[0].Jailing) {
if f["id"] == ComposedJailsID() {
return f["content"].(string)
}
}
t.Fatal("no composed jail file")
return ""
}
before := jailFile("web login failed from <HOST>")
if again := jailFile("web login failed from <HOST>"); again != before {
t.Errorf("the same pattern composed a different jail file, which would restart fail2ban for nothing")
}
if after := jailFile("web login failed from <HOST>\n Invalid user .* from <HOST>"); after == before {
t.Errorf("a changed pattern left the jail file as it was, so fail2ban keeps the old filter:\n%s", after)
}
}
+6 -179
View File
@@ -147,17 +147,8 @@ type Offer struct {
// shared by every consumer (novox/hq ADR 0158): software that holds one password or one key
// cannot give each consumer a login of its own. The named secret must say how it is taken.
Credential *OfferCredential `json:"credential,omitempty"`
// Reach is ReachMachine for a provision usable only on the provider's own machine — a display
// (novox/hq ADR 0208 §3). Node scope already keeps a provision off other machines; what this adds
// is that a requirement for it is never answered by installing a provider: the display server is
// a seat's holder gated by the machine's graphical session, and pulling one in for whatever asked
// is the misassignment research 026 found. Unmet, the requirement is refused naming who could.
Reach string `json:"reach,omitempty"`
}
// MachineReach is whether a provision is usable only on its provider's own machine.
func (o Offer) MachineReach() bool { return o.Reach == ReachMachine }
// OfferCredential names which of the provider's own secrets a provision's consumers receive.
type OfferCredential struct {
Own string `json:"own"`
@@ -205,29 +196,27 @@ func (o *Offer) UnmarshalJSON(raw []byte) error {
Name string `json:"name"`
Scope string `json:"scope,omitempty"`
Credential *OfferCredential `json:"credential,omitempty"`
Reach string `json:"reach,omitempty"`
}
dec := json.NewDecoder(bytes.NewReader(raw))
dec.DisallowUnknownFields()
if err := dec.Decode(&full); err != nil {
return fmt.Errorf("a provided name is either a string or {name, scope, credential, reach}: %w", err)
return fmt.Errorf("a provided name is either a string or {name, scope, credential}: %w", err)
}
o.Name, o.Scope, o.Credential, o.Reach = full.Name, full.Scope, full.Credential, full.Reach
o.Name, o.Scope, o.Credential = full.Name, full.Scope, full.Credential
return nil
}
// MarshalJSON writes back the short form when there is nothing else to say, so a manifest that
// went through the mesh comes out looking like the one that went in.
func (o Offer) MarshalJSON() ([]byte, error) {
if o.Scope == "" && o.Credential == nil && o.Reach == "" {
if o.Scope == "" && o.Credential == nil {
return json.Marshal(o.Name)
}
return json.Marshal(struct {
Name string `json:"name"`
Scope string `json:"scope,omitempty"`
Credential *OfferCredential `json:"credential,omitempty"`
Reach string `json:"reach,omitempty"`
}{o.Name, o.Scope, o.Credential, o.Reach})
}{o.Name, o.Scope, o.Credential})
}
// Manifest is everything a module says about itself.
@@ -336,15 +325,6 @@ type Manifest struct {
// person's account (design 25 §7) already had the same shape.
Invokes []string `json:"invokes,omitempty"`
// State is the current state this module keeps on the bus, by local name: each a key-value
// bucket the controller creates, which every instance of the module writes and reads
// (novox/hq ADR 0201). Not history — that is an event — and never a secret, sealed or not.
State []StateDeclaration `json:"state,omitempty"`
// Reads are other modules' state this module reads and watches, each `<module>.<name>`
// (novox/hq ADR 0201). Read-only: only the owner's instances write.
Reads []string `json:"reads,omitempty"`
// Capabilities the machine must have. A different field from Requires because the remedy
// differs: a missing module can be assigned, and a missing capability means the wrong
// machine.
@@ -528,22 +508,6 @@ type Manifest struct {
// holder. Like Filtering: one module per node gathers what every module declared and writes it.
Jailing *Jailing `json:"jailing,omitempty"`
// Environment is what this module adds to the operator account's environment: variables, and
// entries on PATH (novox/hq ADR 0203). Facts, not lines of one shell's syntax — the holder of
// node-environment places them, and the controller writes them in each reader's format. Like
// Jails: any module contributes, gathered from every module on the node, written by the holder.
Environment *Environment `json:"environment,omitempty"`
// Shell is code this module adds to the login shell's startup, for a named shell in a named
// slot (novox/hq ADR 0204). The controller never reads it: it is placed, in module order, where
// the holder of node-login-shell put the slot's placeholder.
Shell []ShellCode `json:"shell,omitempty"`
// Contributions are configuration this module gives the holder of a seat it does not hold, in
// that tool's own grammar (novox/hq ADR 0212): a seat, a kind the seat receives, and the text. The
// holder places them; the module depends on the seat (ADR 0210 §3).
Contributions []SeatContribution `json:"contributions,omitempty"`
// Guards are ports of this module's the mesh refuses on an adopted node except from the
// private network and from the machine itself (novox/hq ADR 0100) — the store's port and the
// broker's management port. The ports the software uses; the mesh guards where the machine
@@ -608,44 +572,6 @@ type Manifest struct {
// a module that could ask for it could read every credential on the bus — and the claim on
// `mesh-broker` is what authorises it, checked from this manifest alone.
BusUsers string `json:"bus-users,omitempty"`
// Bundles are this module's compiled bundles as the build produced them: what each is called,
// where it is, what it hashes to, what language it is in and which files a tool runtime loads
// from it (novox/hq ADR 0175, to-be 38).
//
// **Derived, never written.** The manifest in a repository says `build.artifacts`; the manifest
// the mesh holds says what came out, the way a resource naming an artifact comes to name a
// digest. Kept here because a tools bundle is referenced by no resource of the module's own —
// the node's runtime loads it, and the runtime is composed by the mesh — so without this the
// resolved manifest would carry no trace of the one artifact the runtime needs. A repository
// manifest that writes this beside a build is refused: it would be stating the build's output
// by hand.
Bundles []Bundle `json:"bundles,omitempty"`
}
// Bundle is one compiled bundle after it exists, as the resolved manifest carries it.
type Bundle struct {
Name string `json:"name"`
// Source is where a machine fetches it, kept without the store's address like every reference
// the mesh records (artifacts.go); Digest is what it must hash to.
Source string `json:"source"`
Digest string `json:"digest"`
// Language is what it was compiled from, which is what says how it is run.
Language string `json:"language,omitempty"`
// Entrypoints are the compiled files it was built around, relative to its root.
Entrypoints []string `json:"entrypoints,omitempty"`
// Loads are the entrypoints a node's tool runtime imports from it: what the artifact said, or
// every entrypoint for a module declaring tools that said nothing. Empty for a bundle that is
// run rather than loaded.
Loads []string `json:"loads,omitempty"`
// Env is what the artifact said it is given (ADR 0192), as written; composed per machine.
Env map[string]string `json:"env,omitempty"`
// Launchers are the executables the build wrote beside its entrypoints, by entrypoint (novox/hq
// ADR 0193). A bundle built before them has none, and is served as it was built.
Launchers map[string]string `json:"launchers,omitempty"`
// Binary is the executable a bundle compiled to a binary is, at its root (novox/hq ADR 0193):
// what runs it, where an interpreted bundle names an interpreter and an entrypoint.
Binary string `json:"binary,omitempty"`
}
// Build says how to produce this module's artifacts from its source.
@@ -782,26 +708,6 @@ type Artifact struct {
// somebody adds a helper. An empty list is a bundle that is run rather than loaded — a
// provisioner or a step, named by whatever runs it.
Entrypoints []string `json:"entrypoints,omitempty"`
// Loads are the entrypoints of this bundle the node's tool runtime loads (novox/hq ADR 0175,
// to-be 38): the module's tool code, each file registering its tools as it is imported. A
// subset of Entrypoints, for a bundle that also carries things that are RUN — a daemon, a
// step, a report — and must not have them imported into the runtime.
//
// Absent means every entrypoint, for a module that declares `tools`: a bundle holding the
// module's tools and nothing else is the ordinary case and should not have to say the same
// list twice. A module declaring no tools has nothing the runtime loads, whatever it compiles.
Loads []string `json:"loads,omitempty"`
// External are packages a TypeScript bundle keeps as imports rather than inlining — a native
// addon, a package that reads its own files — and so carries the toolchain's node_modules for
// (novox/hq ADR 0193). Absent for nearly every bundle, which is then one file per entrypoint.
External []string `json:"external,omitempty"`
// Env is what a tools bundle is given on a machine (novox/hq ADR 0192): words and their values,
// paths and constants composed with ${dir:…} and ${port:…} exactly as a container's environment
// is, never a secret's content. The node's runtime hands it to this bundle and to no other.
Env map[string]string `json:"env,omitempty"`
}
// Kinds an artifact may be.
@@ -1333,19 +1239,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
"%s provides %q at scope %q; a provision is %q or %q",
m.Module, p, s, ScopeNode, ScopeMesh))
}
switch {
case offer.Reach == "":
case offer.Reach != ReachMachine:
// The one reach a provision has (novox/hq ADR 0208): a provision reached over the private
// network is mesh scope, and the world reaches nothing but a name.
problems = append(problems, fmt.Sprintf(
"%s provides %q with reach %q; a provision's reach is %q or nothing",
m.Module, p, offer.Reach, ReachMachine))
case offer.At() != ScopeNode:
problems = append(problems, fmt.Sprintf(
"%s provides %q at scope %q with the machine's reach; a provision usable only on its own "+
"machine is node-scoped (novox/hq ADR 0208)", m.Module, p, offer.At()))
}
if p == m.Module {
// Harmless and worth saying: a module always provides its own name, so writing it
// suggests the author expected it not to.
@@ -1365,8 +1258,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
// module whose event names are wrong installs, starts, connects and reacts to nothing, with
// every log line saying it is fine (novox/hq 04-ISSUES/127).
problems = append(problems, EventProblems(m)...)
// And what it may call its state, and whose it may read (state.go, novox/hq ADR 0201).
problems = append(problems, StateProblems(m)...)
wellFormed := true
for _, c := range m.Claims {
if !name.MatchString(c.Name) {
@@ -1429,7 +1320,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
}
}
problems = append(problems, m.Build.problems(m.Module)...)
problems = append(problems, undeliveredBundles(m)...)
// **What provides the artifact store cannot be delivered through it** (novox/hq 04-ISSUES/029).
//
// Building publishes to the store, and the builder will not start without one. So a module
@@ -1443,15 +1333,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
//
// Refused here because the alternative is a build that never returns, on a mesh new enough
// that nobody is watching it yet.
if m.Build != nil && len(m.Bundles) > 0 {
// The output of a build, written beside the build that produces it (ADR 0175). A resource
// naming a digest beside an `artifact` would be the same mistake, and is caught the same way:
// what the mesh derives, a repository does not state.
problems = append(problems, fmt.Sprintf(
"%s writes `bundles` beside its build. The mesh derives that from what the build "+
"produced; a manifest states `build.artifacts` and nothing about what came out",
m.Module))
}
if m.Build != nil && len(m.Build.Artifacts) > 0 {
for _, o := range m.Offers() {
if o != ArtifactStoreProvision {
@@ -1479,7 +1360,7 @@ func ParseManifest(raw []byte) (Manifest, error) {
"%s serves %q to whoever requires it, and does not provide it", m.Module, to))
}
}
// A served value may be derived for the consumer it is served to (novox/hq ADR 0201). Read
// A served value may be derived for the consumer it is served to (novox/hq ADR 0188). Read
// here, where the definition is, rather than when somebody first requires it: a rule that
// would be refused at the first consumer is wrong from the moment it is written.
problems = append(problems, CheckServes(m)...)
@@ -1570,53 +1451,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
"program that reads what the mesh delivered and reconciles",
m.Module, r["id"]))
}
// **What a process replaces is something the module no longer declares** (novox/hq issue 213).
// The host keeps it running until the process is, then removes it: so it is named by the id the
// module used to give it, it is never a resource the module still declares — that would be
// applied and removed by one declaration — and only a process that stays up has anything to
// hand over to. Said here, near the author, as the host would refuse it far away.
ids := map[string]bool{}
for _, r := range m.Resources {
ids[fmt.Sprint(r["id"])] = true
}
for _, r := range m.Resources {
raw, present := r["replaces"]
if !present {
continue
}
if fmt.Sprint(r["type"]) != "process" {
problems = append(problems, fmt.Sprintf(
"%s: %v says what it replaces, and only a process does", m.Module, r["id"]))
continue
}
if once, _ := r["run-once"].(bool); once || r["schedule"] != nil {
problems = append(problems, fmt.Sprintf(
"%s: %v replaces something and runs once or on a schedule — only a process that stays "+
"up is there a moment later to hand over to", m.Module, r["id"]))
}
list, ok := raw.([]any)
if !ok {
problems = append(problems, fmt.Sprintf(
"%s: %v replaces %v; replaces is a list of the ids this module no longer declares",
m.Module, r["id"], raw))
continue
}
for _, item := range list {
id, ok := item.(string)
switch {
case !ok || strings.TrimSpace(id) == "":
problems = append(problems, fmt.Sprintf(
"%s: %v replaces %v, which is not an id", m.Module, r["id"], item))
case strings.Contains(id, "."):
problems = append(problems, fmt.Sprintf(
"%s: %v replaces %q; a process replaces only a resource of its own module, named "+
"by its own id", m.Module, r["id"], id))
case ids[id]:
problems = append(problems, fmt.Sprintf(
"%s: %v replaces %q, which this module still declares", m.Module, r["id"], id))
}
}
}
// **A module that prepares its state must have code the mesh can run** (novox/hq ADR 0135). The
// preparation is the module's own program in its preparation mode, so it is derived from the
// resource that runs that program — and a module declaring none has asked for something the mesh
@@ -1624,7 +1458,7 @@ func ParseManifest(raw []byte) (Manifest, error) {
// quietly prepares nothing.
if m.Prepares && preparationTarget(m) == "" {
problems = append(problems, fmt.Sprintf(
"%s says it prepares its state, and declares no container or process running an artifact it built — "+
"%s says it prepares its state, and declares no container running an artifact it built — "+
"the preparation is this module's own program, so there has to be one for the mesh to "+
"run it in", m.Module))
}
@@ -1845,13 +1679,6 @@ func ParseManifest(raw []byte) (Manifest, error) {
problems = append(problems, m.unknownDirRefs()...)
problems = append(problems, m.unknownAccessRefs()...)
problems = append(problems, m.jailProblems()...)
// What a module adds to the account's environment and to the login shell, and the holder's
// placeholders for them (novox/hq ADR 0203, ADR 0204) — here, so the catalogue check refuses
// them in the words registration does.
problems = append(problems, m.environmentProblems()...)
problems = append(problems, m.shellProblems()...)
problems = append(problems, m.contributionPlaceholderProblems()...)
problems = append(problems, m.seatContributionProblems()...)
for i, r := range m.Resources {
id, _ := r["id"].(string)
+124
View File
@@ -0,0 +1,124 @@
package catalogue
import (
"sort"
"strings"
)
// Which machine serves each routed name (novox/hq ADR 0066, issue 178).
//
// A routed name is a label the mesh composed for a consumer's endpoint, and it is *served* by the
// provider that answers requests for it — the proxy the consumer's route reaches. The same name is
// composed into every labelled contribution the consumer makes, because a provider that must know
// the consumer's public name (an identity provider composing a redirect) is told it the same way
// (04-ISSUES/122). Attributing the name to whichever of those providers a map happened to yield
// last sent a public name to the identity provider's machine on one plan and to the proxy's on the
// next (forge issue 227), and the whole names region flipped with it.
//
// **The terminus serves the name.** Among the providers a name reaches, the one that serves it is
// the one that is not itself routed: a provider that contributes a labelled name of its own to some
// requirement is published through another provider, and is a consumer of names, not their end.
// Name-agnostic — nothing here knows what "route" means — and structural: it reads the graph the
// modules declared. Deterministic: names, requirements and nodes are walked in order, so two
// plans of one mesh yield one region.
// NamesServed is every routed name across the mesh and the node that serves it, from every node's
// resolution and settings. A name several termini claim goes to the first node in name order, so
// the answer is stable; a name nothing terminal claims is left out.
func NamesServed(plans map[string]Resolution, settings map[string]SettingsBy) (map[string]string, error) {
nodes := make([]string, 0, len(plans))
for n := range plans {
nodes = append(nodes, n)
}
sort.Strings(nodes)
out := map[string]string{}
for _, node := range nodes {
plan := plans[node]
all, err := plan.contributions(settings[node], nil, nil)
if err != nil {
return nil, err
}
requirements := make([]string, 0, len(all))
for to := range all {
requirements = append(requirements, to)
}
sort.Strings(requirements)
for _, to := range requirements {
for _, given := range all[to] {
if given.Node != "" {
// Said from another machine; that machine's own resolution carries it.
continue
}
// A routed name, and only that: a contribution the mesh composed a name for from a
// label it was given. A grant that happens to carry a `name` of its own — a database
// name — carries no label and is left alone.
if _, labelled := given.Values["label"]; !labelled {
continue
}
name, _ := given.Values["name"].(string)
if name == "" {
continue
}
serving := servingNodeOf(plan, to, given.From, node)
if !servesNames(plans[serving], to) {
continue
}
name = strings.ToLower(name)
if held, taken := out[name]; !taken || serving < held {
out[name] = serving
}
}
}
}
return out, nil
}
// servingNodeOf is the node answering one consumer's requirement: whoever the plan needs it from,
// or this same node when the provider is beside the consumer.
func servingNodeOf(plan Resolution, requirement, consumer, self string) string {
for _, need := range plan.Needs {
if need.Name == requirement && need.For == consumer && need.From != "" {
return need.From
}
}
return self
}
// servesNames says whether the module providing a requirement on a node is a terminus: it is not
// itself published under a labelled name through some other provider. A node whose plan is not
// known (it did not resolve) serves nothing.
func servesNames(plan Resolution, requirement string) bool {
for _, m := range plan.Modules {
if !offers(m, requirement) {
continue
}
return !contributesALabel(m)
}
return false
}
func offers(m Manifest, requirement string) bool {
for _, o := range m.Offers() {
if o == requirement {
return true
}
}
return false
}
func contributesALabel(m Manifest) bool {
for _, values := range m.Contributes {
if _, labelled := values["label"]; labelled {
return true
}
}
for _, locals := range m.ContributesMany {
for _, values := range locals {
if _, labelled := values["label"]; labelled {
return true
}
}
}
return false
}
+99
View File
@@ -0,0 +1,99 @@
package catalogue
import (
"testing"
)
// The mesh of forge issue 227 (novox/hq issue 178): a dashboard on the home server contributes its
// label to the route its proxy serves AND to the identity provider on the control node, which must
// know the dashboard's public name to compose a redirect. Both contributions carry the composed
// name; only the proxy serves it.
func twoNodesOneName(t *testing.T) (map[string]Resolution, map[string]SettingsBy) {
t.Helper()
catalogue := shelf(
Manifest{Module: "route-adapter", Version: "1", Provides: Offers("route"),
Serves: map[string]map[string]any{"route": {}}, Receives: map[string]string{"route": "/etc/adapter/mesh.json"}},
Manifest{Module: "route-proxy", Version: "1", Provides: Offers("route"),
Serves: map[string]map[string]any{"route": {}}, Receives: map[string]string{"route": "/etc/proxy/mesh.json"}},
Manifest{Module: "keycloak", Version: "1", Provides: FromAnywhere("oidc-client"),
Serves: map[string]map[string]any{"oidc-client": {"token-path": "/token"}},
Receives: map[string]string{"oidc-client": "/etc/keycloak/clients.json"},
Listens: []Listening{{Port: 8080, From: FromMesh, Why: "the login page"}},
// Published through the proxy itself: the identity provider is routed, not a router.
Contributes: map[string]map[string]any{"route": {"label": "login", "endpoint": "web", "port": 8080}}},
Manifest{Module: "grafana", Version: "1",
Listens: []Listening{{Port: 3000, From: FromMesh, Why: "dashboards"}},
Contributes: map[string]map[string]any{
"route": {"label": "grafana", "endpoint": "web", "port": 3000},
"oidc-client": {"label": "grafana", "endpoint": "web", "port": 3000, "callback": "/login"},
}},
)
home := withDomain("home.example")
home.Name, home.At = "home-server", "home-server.internal"
control := withDomain("control.example")
control.Name, control.At = "anchor", "anchor.internal"
onHome, err := Resolve(catalogue, []string{"grafana", "route-adapter"}, home, World{
Offered: map[string][]Provider{"oidc-client": {{Node: "anchor", At: "anchor.internal", Module: "keycloak"}}},
})
if err != nil {
t.Fatal(err)
}
onControl, err := Resolve(catalogue, []string{"keycloak", "route-proxy"}, control, World{})
if err != nil {
t.Fatal(err)
}
return map[string]Resolution{"home-server": onHome, "anchor": onControl},
map[string]SettingsBy{"home-server": {}, "anchor": {}}
}
func TestANameResolvesToTheNodeWhoseProxyServesIt(t *testing.T) {
plans, settings := twoNodesOneName(t)
// Many times, because the fault was map order: one plan said one node, the next the other.
for i := 0; i < 25; i++ {
served, err := NamesServed(plans, settings)
if err != nil {
t.Fatal(err)
}
if served["grafana.home.example"] != "home-server" {
t.Fatalf("run %d: the dashboard's name is served by %q, and its proxy is on the home server: %v",
i, served["grafana.home.example"], served)
}
if served["login.control.example"] != "anchor" {
t.Fatalf("run %d: the identity provider's own name is served by its proxy on the control node: %v", i, served)
}
if _, leaked := served["grafana.control.example"]; leaked {
t.Fatalf("a name composed for the identity provider's benefit is not one it serves: %v", served)
}
}
}
// A module that is routed several times names each route (ADR 0094's sibling for contributes);
// every one of them is a name the mesh must resolve, and none reached the names region before.
func TestEveryRouteOfAModuleWithSeveralIsANameServed(t *testing.T) {
catalogue := shelf(
Manifest{Module: "route-proxy", Version: "1", Provides: Offers("route"),
Serves: map[string]map[string]any{"route": {}}, Receives: map[string]string{"route": "/etc/proxy/mesh.json"}},
Manifest{Module: "photos", Version: "1",
Listens: []Listening{{Port: 8102, From: FromMesh, Why: "web"}, {Port: 9102, From: FromMesh, Why: "api"}},
ContributesMany: map[string]map[string]map[string]any{"route": {
"site": {"label": "photos", "endpoint": "web", "port": 8102},
"api": {"label": "photos-api", "endpoint": "api", "port": 9102},
}}},
)
node := withDomain("control.example")
node.Name, node.At = "anchor", "anchor.internal"
plan, err := Resolve(catalogue, []string{"photos", "route-proxy"}, node, World{})
if err != nil {
t.Fatal(err)
}
served, err := NamesServed(map[string]Resolution{"anchor": plan}, map[string]SettingsBy{"anchor": {}})
if err != nil {
t.Fatal(err)
}
for _, name := range []string{"photos.control.example", "photos-api.control.example"} {
if served[name] != "anchor" {
t.Fatalf("%s is not served by its proxy: %v", name, served)
}
}
}
+5 -10
View File
@@ -31,7 +31,7 @@ import (
//
// So a module asks. `${port:8080}` is "the machine-side port you gave me for the 8080 I said I
// listen on", and the module writes that where it would otherwise have written a literal — in a
// file's content, or in a value of a container's or a process's `env`.
// file's content, or in a value of a container's `env`.
//
// **The environment is filled by the control plane, exactly as a bound value is.** A port is not
// secret — the mesh holds it in the clear — so there is nothing for the host to be the only
@@ -64,12 +64,7 @@ func portsUsed(content string) []int {
}
// portInto replaces a resource's ${port:…} placeholders with what this machine assigned — in a
// file's content, and in a value of a container's or a process's environment.
//
// **A process's environment is a container's** (novox/hq to-be 38 WP4c). A module's code moving out
// of its container becomes a process on the machine and still has to be told what the container
// was told; filled for one kind and not the other, the literal reached the process and was read as
// a port, and the modules that moved first wrote their run-once steps a 0600 env file instead.
// file's content, and in a value of a container's environment.
//
// A port the module did not say it listens on is refused, for the same reason a binding's unknown
// key is: the module is asking about something it never declared, and the answer would be a guess.
@@ -89,7 +84,7 @@ func portInto(resource map[string]any, module string, listens []Listening, with
}
resource["content"] = filled
case "container", "process":
case "container":
env, ok := resource["env"].(map[string]any)
if !ok {
return nil
@@ -111,8 +106,8 @@ func portInto(resource map[string]any, module string, listens []Listening, with
continue
}
value, err := portsFilledInto(written,
fmt.Sprintf("%s's %s %s sets %s to something that",
module, resource["type"], resource["name"], key), module, listens, with)
fmt.Sprintf("%s's container %s sets %s to something that",
module, resource["name"], key), module, listens, with)
if err != nil {
return err
}
-80
View File
@@ -1,80 +0,0 @@
package catalogue
import (
"strings"
"testing"
)
// **A process's environment is composed as a container's is** (novox/hq to-be 38 WP4c).
//
// A module's code moving out of its container becomes a process on the machine, and what its
// container's environment asked for — the port this machine gave the module, the place it put the
// module's directory — it still has to be told. Filled for a container and not for a process, the
// literal `${port:8080}` reached the process as its environment and was read as a port; the modules
// that moved first wrote their run-once steps an env file instead.
func processModule(env map[string]any) Manifest {
return Manifest{
Module: "showcase",
Listens: []Listening{{Port: 8080, From: FromMesh}},
Resources: []map[string]any{
{"id": "data", "type": "directory", "mode": "0700"},
{"id": "setup", "type": "process", "name": "showcase-setup", "run-once": true,
"run": []any{"/usr/bin/showcase", "setup"}, "env": env},
},
}
}
func TestAProcessIsToldItsPortAndItsPlaceInItsEnvironment(t *testing.T) {
env := map[string]any{
"SHOWCASE_URL": "http://127.0.0.1:${port:8080}",
"SHOWCASE_DATA": "${dir:data}/objects",
"SHOWCASE_DB": "127.0.0.1:${seat:mesh-store:5432}",
"GREETING": "hello",
}
out, err := Resolution{Node: "anchor", Modules: []Manifest{processModule(env)}}.Declaration(Rendering{
Ports: map[string]map[int]int{"showcase": {8080: 21000}},
Seats: map[string]map[int]int{"mesh-store": {5432: 6852}},
})
if err != nil {
t.Fatalf("a process asking for its port and its place does not compose: %v", err)
}
setup := fileNamed(out, "showcase.setup")
if setup == nil {
t.Fatalf("the process is not in the declaration: %v", out)
}
got, _ := setup["env"].(map[string]any)
for key, want := range map[string]string{
"SHOWCASE_URL": "http://127.0.0.1:21000",
"SHOWCASE_DATA": "/var/lib/showcase/data/objects",
"SHOWCASE_DB": "127.0.0.1:6852",
"GREETING": "hello",
} {
if got[key] != want {
t.Errorf("the process is told %s=%v, want %q", key, got[key], want)
}
}
if env["SHOWCASE_URL"] != "http://127.0.0.1:${port:8080}" {
t.Fatalf("composing for one machine edited the module's own manifest: %v", env)
}
}
// An unknown reference in a process's environment is refused as a container's is, naming the
// process and the variable — left alone, it would reach the machine as a literal.
func TestAProcessAskingAboutAnUndeclaredPortIsRefused(t *testing.T) {
env := map[string]any{"SHOWCASE_URL": "http://127.0.0.1:${port:9999}"}
_, err := Resolution{Node: "anchor", Modules: []Manifest{processModule(env)}}.Declaration(Rendering{})
if err == nil {
t.Fatal("a process was told a port its module never said it listens on")
}
for _, said := range []string{"showcase-setup", "SHOWCASE_URL", "${port:9999}", "8080"} {
if !strings.Contains(err.Error(), said) {
t.Errorf("the refusal does not say %q: %v", said, err)
}
}
env = map[string]any{"SHOWCASE_DATA": "${dir:date}/objects"}
if _, err := (Resolution{Node: "anchor", Modules: []Manifest{processModule(env)}}).Declaration(Rendering{}); err == nil ||
!strings.Contains(err.Error(), "${dir:date}") {
t.Fatalf("a process naming no directory of its module was not refused: %v", err)
}
}
@@ -1,75 +0,0 @@
package catalogue
import (
"fmt"
"os"
"path/filepath"
"strconv"
"strings"
"testing"
)
// A container publishes only a port its module declares (novox/hq issue 227).
//
// **The short form is a question the mesh answers.** `"80"` means *publish what the software
// calls 80*, and the mesh fills in the machine's half from the port it assigned
// ([ADR 0038](0038)). It can only assign one for a port the module declared in `listens` — so a
// container publishing a number that appears nowhere in `listens` gets no assignment, and
// `publishedOn` falls back to the number as written. It escapes to the machine.
//
// That is how the photo module asked for port 80 on the control node, where the reverse proxy
// holds it: it declared its web endpoint at 4001, published a bare 80, and the container never
// started. Four other modules publish 80 quite safely — because they declare 80, so the mesh
// gives them a machine port for it. The difference is the declaration, not the number.
//
// A mapping written the long way is a module pinning both halves on purpose and is left alone.
func TestEveryPublishedPortIsOneItsModuleDeclares(t *testing.T) {
root := catalogueRoot(t)
entries, err := os.ReadDir(filepath.Join(root, "modules"))
if err != nil {
t.Fatal(err)
}
var escaped []string
for _, entry := range entries {
if !entry.IsDir() {
continue
}
raw, err := os.ReadFile(filepath.Join(root, "modules", entry.Name(), "module.json"))
if err != nil {
continue
}
m, err := ParseManifest(raw)
if err != nil {
// Whether every manifest parses is TestEveryCatalogueManifestParses's question.
continue
}
declared := map[int]bool{}
for _, l := range m.Listens {
declared[l.Port] = true
}
for _, r := range m.Resources {
if fmt.Sprint(r["type"]) != "container" {
continue
}
listed, _ := r["ports"].([]any)
for _, p := range listed {
written := strings.Split(fmt.Sprint(p), "/")[0]
if strings.Contains(written, ":") {
continue // pinned by hand, both halves, on purpose
}
port, err := strconv.Atoi(strings.TrimSpace(written))
if err != nil || declared[port] {
continue
}
escaped = append(escaped, fmt.Sprintf(
"%s's %v publishes %d, and %s declares no such port — the mesh has nothing "+
"to assign, so %d reaches the machine as written",
m.Module, r["id"], port, m.Module, port))
}
}
}
if len(escaped) > 0 {
t.Fatalf("a container may publish only a port its module declares:\n - %s",
strings.Join(escaped, "\n - "))
}
}
-115
View File
@@ -147,10 +147,6 @@ type Resolution struct {
// dropped nor fatal to the rest. A module that is *required* by something running here is a
// different case — that set is incoherent and is refused (see checkCapabilities).
Unhostable []Unhostable
// Unheld is every dependency of this node's modules on a seat nothing here holds (novox/hq ADR
// 0207) — reported rather than refused while enforceSeatDependencies is off, so a node short of a
// holder still converges and `status` says what it is short of.
Unheld []Unheld
}
// Unhostable is one directly-assigned module the machine cannot run.
@@ -233,27 +229,6 @@ func Resolve(catalogue map[string]Manifest, assigned []string, node Node, world
local[o.Name] = true
}
}
// Which names are usable only on their provider's own machine (novox/hq ADR 0208 §3). Also a
// property of the name: a display one provider says is the machine's and another says is not
// would be pulled in for one consumer and refused for the next.
machineReach := map[string]bool{}
plainLocal := map[string]bool{}
for _, m := range catalogue {
for _, o := range m.Provides {
if o.MachineReach() {
machineReach[o.Name] = true
} else if o.At() == ScopeNode {
plainLocal[o.Name] = true
}
}
}
for want := range machineReach {
if plainLocal[want] {
problems = append(problems, fmt.Sprintf(
"the catalogue disagrees about %q: some modules provide it with the machine's reach and "+
"others without, so a requirement for it would be met differently by each", want))
}
}
for want := range brokered {
if local[want] {
problems = append(problems, fmt.Sprintf(
@@ -520,23 +495,6 @@ func Resolve(catalogue map[string]Manifest, assigned []string, node Node, world
continue
}
// Usable only on its provider's own machine, and not here: refused, never answered by
// installing a provider (novox/hq ADR 0208 §3). The display server is the machine's own role,
// gated by its graphical session; one pulled in for a window manager is the misassignment
// research 026 found. Another node's provider never counts — node scope is never brokered.
if machineReach[want] && !isModule(catalogue, want) {
reported[want] = true
if world.Unchecked {
// The first pass's refusals take a machine off the network; the second says it.
continue
}
problems = append(problems, fmt.Sprintf(
"%q is wanted by %s and is usable only on the machine that provides it, and nothing "+
"assigned to %s does — %s", want, because[want], node.Name,
machineReachRemedy(catalogue, want, node.Name)))
continue
}
candidates := offers[want]
switch len(candidates) {
case 0:
@@ -670,22 +628,6 @@ func Resolve(catalogue map[string]Manifest, assigned []string, node Node, world
problems = append(problems, checkResources(resolution.Modules)...)
resolution.Claims = claims
// Judged over the closure — what this node will actually run — so a holder pulled in by a
// requirement counts, and the holders' mutual dependence resolves (novox/hq ADR 0207 §3).
// Reported until the switch; refused after it, though never in the first pass, whose refusals
// make a machine vanish from the network rather than report anything.
resolution.Unheld = UnheldDependencies(catalogue, node.Name, resolution.Modules, nil)
// Only a dependency some module in the catalogue could meet is refused: one with no possible
// holder has no remedy to name, and stays a report in `status` (novox/hq ADR 0207 §4, read with
// the assign rule above it).
if enforceSeatDependencies && !world.Unchecked {
for _, u := range resolution.Unheld {
if len(u.Holders) > 0 {
problems = append(problems, u.String())
}
}
}
if len(problems) > 0 {
sort.Strings(problems)
return Resolution{}, &Refusal{Problems: problems}
@@ -862,28 +804,6 @@ func checkResources(modules []Manifest) []string {
// does not exist is the manifest's own problem, refused where it was made.
dirs := dirsFor(m, Rendering{})
for _, r := range m.Resources {
if fmt.Sprint(r["type"]) == "user" {
// **An account is shared; what it is set to is not.** Several modules may need one
// login: the shell's module sets its shell, the container runtime's puts it in the
// `docker` group. The host only ever adds groups — it never takes the account out of
// one, not even when the resource that named it is undeclared — so groups from
// several modules cannot contradict each other and are not owned. A shell or a home
// is one value, and two modules setting it would each be undone by the other's
// apply: each stays one module's per node, and two are refused naming both.
name, _ := r["name"].(string)
for _, field := range []string{"shell", "home"} {
if v, ok := r[field].(string); !ok || v == "" || name == "" {
continue
}
key := "user " + field + " " + name
if other, taken := owner[key]; taken && other != m.Module {
problems = append(problems, fmt.Sprintf(
"%s and %s both set the %s of the user %q", other, m.Module, field, name))
}
owner[key] = m.Module
}
continue
}
for _, field := range []string{"path", "unit", "name", "package"} {
value, ok := r[field].(string)
if !ok || value == "" {
@@ -1099,38 +1019,3 @@ func eachLocal(needs []Needed, catalogue map[string]Manifest, n Needed) []Needed
}
return needs
}
// machineReachRemedy names what would meet a requirement with the machine's reach: every module in
// the catalogue that provides it, each with the node seats it holds — for a display, the holders of
// node-display-server (novox/hq ADR 0208 §3), named by the seat because that is the role being
// asked for, without this code knowing which seat any provision belongs to.
func machineReachRemedy(catalogue map[string]Manifest, want, node string) string {
var named []string
for _, name := range sortedKeys(catalogue) {
m := catalogue[name]
provides := false
for _, o := range m.Provides {
if o.Name == want {
provides = true
}
}
if !provides {
continue
}
var held []string
for _, c := range m.Claims {
if c.At() == ScopeNode {
held = append(held, c.Name)
}
}
if len(held) > 0 {
named = append(named, fmt.Sprintf("%s (holds %s)", name, strings.Join(held, ", ")))
} else {
named = append(named, name)
}
}
if len(named) == 0 {
return "and nothing in the catalogue provides it"
}
return fmt.Sprintf("assign one to %s: %s", node, strings.Join(named, "; "))
}
@@ -1,42 +0,0 @@
package catalogue
import (
"strings"
"testing"
)
// A resolved manifest keeps a built artifact's reference in the store-relative form, never the
// address the builder reached the store by (novox/hq ADR 0155): on 2026-10-02 the first bundle
// resolved on the mesh carried the store's host in bundles[0].source and registration refused it
// as naming an installation. Archive resources are the same kind of reference and get the same.
func TestAResolvedReferenceIsKeptNotRouted(t *testing.T) {
m, err := ParseManifest([]byte(`{
"module": "sample", "version": "1",
"tools": ["one"],
"build": {"artifacts": [
{"name": "code", "kind": "bundle", "language": "typescript", "entrypoints": ["tools/index.js"]},
{"name": "files", "kind": "archive", "from": "files"}
]},
"resources": [{"id": "packed", "type": "archive", "path": "/opt/sample", "artifact": "files"}]
}`))
if err != nil {
t.Fatal(err)
}
digest := "sha256:" + strings.Repeat("ab", 32)
resolved, err := m.Resolve([]Built{
{Name: "code", Kind: ArtifactBundle, Reference: "http://store.example:5100/v2/sample/code/blobs/" + digest, Digest: digest},
{Name: "files", Kind: ArtifactArchive, Reference: "http://store.example:5100/v2/sample/files/blobs/" + digest, Digest: digest},
})
if err != nil {
t.Fatal(err)
}
if got, want := resolved.Bundles[0].Source, ArtifactStoreScheme+"sample/code/blobs/"+digest; got != want {
t.Errorf("bundle source %q, want the kept form %q", got, want)
}
if got, want := resolved.Resources[0]["source"], ArtifactStoreScheme+"sample/files/blobs/"+digest; got != want {
t.Errorf("archive source %q, want the kept form %q", got, want)
}
if problems := InstallationProblems(resolved); len(problems) != 0 {
t.Errorf("a resolved manifest names an installation: %v", problems)
}
}
+4 -4
View File
@@ -28,10 +28,10 @@ import (
// A RosterFile is a file the mesh renders from the roster of machines, in the format the module
// gives as a Go text/template. The template sees a rosterView: `.Node` (this machine's bare name),
// `.Suffix` (what its mesh name ends in), and two sets of `{Name, FQDN, Address}` — `.Names` and
// `.Machines`. Both are the nodes of the mesh: routed names were once in `.Names` too, and are not
// since every route became a name under its node's internal domain (novox/hq ADR 0191) — the hq
// issue 111 distinction is kept as two fields so the templates that range either keep rendering.
// `.Suffix` (what its mesh name ends in), and two sets of `{Name, FQDN, Address}` — `.Names`, every
// name the mesh serves, and `.Machines`, only the nodes of the mesh. Which set a template ranges is
// how the hq issue 111 distinction is drawn: a container's hosts wants every name; a resolver told
// the suffix is its own wants only the machines.
type RosterFile struct {
// Path is where on the machine the rendered file goes. Absolute, or it is refused here rather
// than discovered as a daemon that reads nothing.
-365
View File
@@ -1,365 +0,0 @@
package catalogue
import (
"encoding/json"
"fmt"
"sort"
"strings"
)
// The node's tool runtime, as the catalogue knows it (novox/hq ADR 0175, to-be 38).
//
// **One module is the runtime.** Where it is assigned, one process per machine serves every assigned
// module's tools and every held seat's verbs, on the host side, from the bundles each module's build
// produced — and no module needs a container to reach the bus with its tools. The name is a constant
// rather than a manifest field because a rule turns on it: the composer places the runtime's process
// where this module is, and registration refuses the old pattern once this module exists.
// RuntimeModule is the module that is the node's tool runtime. Mirrored in the broker package,
// which composes a principal of its own for it; the agreement test there holds the two to one string.
const RuntimeModule = "node-tools"
// BundleRoot is where a machine keeps the tools bundles the mesh delivers to it: under the mesh's
// own directory, beside the daemons the host unpacks there, and never where a package manager also
// writes. One directory per module, one per bundle beneath it, at a path that does not move with
// the version — so the runtime's process names each entrypoint once and is restarted, not
// recomposed, when a bundle changes.
const BundleRoot = "/var/lib/mesh/bundles"
// BundleID names the archive resource that delivers one of a module's bundles; prefixed with the
// module like every resource of its own.
func BundleID(bundle string) string { return "bundle-" + bundle }
// BundlePath is where one module's bundle is unpacked on a machine.
func BundlePath(module, bundle string) string { return BundleRoot + "/" + module + "/" + bundle }
// runtimeHere says whether this node's set includes the runtime module, which is what decides
// whether anything about tools changes on the machine (to-be 38 WP2): until the runtime is assigned,
// a node is sent exactly what it was sent before, bundles included, because a bundle nothing loads
// is bytes nobody reads.
func (r Resolution) runtimeHere() bool {
for _, m := range r.Modules {
if m.Module == RuntimeModule {
return true
}
}
return false
}
// bundleArchives is one archive per tools bundle of a module — a bundle the runtime LOADS something
// from — as the host fetches and unpacks any artifact (novox/hq ADR 0175 §3: a module brings its
// tools as a bundle, delivered by the host like any artifact, never an image). A bundle it loads
// nothing from is run rather than loaded: a daemon, a step, the runtime itself — delivered by the
// process that runs it, and not again here.
//
// The source is the kept reference; the per-resource pass that follows routes it through the
// artifact store as this network reaches it now, as it does every image and archive the mesh built.
func bundleArchives(m Manifest) []map[string]any {
var out []map[string]any
for _, b := range m.Bundles {
if len(b.Loads) == 0 {
continue
}
out = append(out, map[string]any{
"id": BundleID(b.Name), "type": "archive",
"source": b.Source, "digest": b.Digest,
"path": BundlePath(m.Module, b.Name),
})
}
return out
}
// RuntimeProcessID names the one process the mesh composes for a machine's runtime; prefixed with
// the runtime module like a resource of its own, because that module is what the host sees it as.
func RuntimeProcessID() string { return "runtime" }
// RuntimeToolModules is the variable the runtime reads the modules it serves from: one
// `<module>=<entrypoint>` per file it loads, comma-separated — several entries may name one module.
// RuntimeBrokerFile is where it reads the node's credential; RuntimeOperatorAccount and
// RuntimeOperatorHome are the machine's operator account and home, handed to every tool's
// environment (to-be 38 WP1), and absent on a machine with no account.
const (
RuntimeToolModules = "MESH_TOOL_MODULES"
RuntimeBrokerFile = "MESH_BROKER_FILE"
RuntimeOperatorAccount = "MESH_OPERATOR_ACCOUNT"
RuntimeOperatorHome = "MESH_OPERATOR_HOME"
// RuntimeToolEnv is every served module's composed environment, as JSON (novox/hq ADR 0192):
// {"<module>": {"<word>": "<value>"}}. The runtime takes it at start, removes it from its own
// environment and hands each module's words to that module's bundles alone. In the unit, so a
// change to any module's words changes the process and restarts it.
RuntimeToolEnv = "MESH_TOOL_ENV"
)
// interpreterFor is how a bundle in a language is run: the program the host's unit starts, with the
// bundle's entrypoint after it. The one thing the composer takes from a language, and said here
// rather than in a manifest because the runtime's process is the mesh's to compose (to-be 38 WP3).
func interpreterFor(language string) (string, error) {
switch language {
case "typescript":
return "node", nil
}
return "", fmt.Errorf(
"%s is written in %q, and the mesh knows no interpreter to run a %q bundle with",
RuntimeModule, language, language)
}
// runtimeProcess is the one process a machine runs the node's tool runtime as (novox/hq ADR 0175,
// to-be 38 WP2.3): the runtime module's own bundle, run by its language's interpreter, told which
// modules it serves and from which files, where its credential is, and who the machine's operator
// is — and restarted when any bundle it loads or the credential it holds changes.
//
// Composed from the placed manifests, so the credential's path is where this node puts it. The
// runtime runs as the operator's account when the machine has one, which is what lets a tool that
// needs root escalate as the operator would (ADR 0175 §4); on a machine with no account it runs as
// root, and the two operator words are not set.
func (r Resolution) runtimeProcess(with Rendering) (map[string]any, error) {
var runtime *Manifest
for i := range r.Modules {
if r.Modules[i].Module == RuntimeModule {
runtime = &r.Modules[i]
}
}
if runtime == nil {
return nil, nil
}
if len(runtime.Bundles) != 1 {
return nil, fmt.Errorf(
"%s is assigned to %s and its build produced %d bundle(s); the runtime is one bundle "+
"the mesh runs, so the module declares exactly one (novox/hq to-be 38)",
RuntimeModule, r.Node, len(runtime.Bundles))
}
bundle := runtime.Bundles[0]
// What runs it (novox/hq ADR 0193): a runtime compiled to a binary runs itself, from its own
// unpacked bundle; an interpreted one is its language's interpreter and its one entrypoint.
var run []any
if bundle.Binary != "" {
run = []any{"./" + bundle.Binary}
} else {
if len(bundle.Entrypoints) != 1 {
return nil, fmt.Errorf(
"%s's bundle %q names %d entrypoint(s); the runtime is run from one, so the module "+
"declares exactly one (novox/hq to-be 38)", RuntimeModule, bundle.Name, len(bundle.Entrypoints))
}
interpreter, err := interpreterFor(bundle.Language)
if err != nil {
return nil, err
}
run = []any{interpreter, bundle.Entrypoints[0]}
}
credential, declared := runtime.OwnSecrets["broker"]
if !declared {
return nil, fmt.Errorf(
"%s declares no own secret named broker, and the node's credential is delivered there: "+
"a module that speaks on the bus declares \"own-secrets\": {\"broker\": <path>}",
RuntimeModule)
}
// What it serves, and from which files: every module on this machine that composes here, in
// name order, each bundle it loads from in the order the manifest gave. A module left out of
// the declaration — a filter on an adopted machine — is left out of this too, or the runtime
// would be told to load files that were never delivered.
var served []string
var restartOn []string
given := map[string]map[string]string{}
for _, m := range r.Modules {
if with.Adopted && m.Filtering != nil {
continue
}
words, err := bundleWords(m, with)
if err != nil {
return nil, err
}
if len(words) > 0 {
given[m.Module] = words
}
for _, b := range m.Bundles {
if len(b.Loads) == 0 {
continue
}
for _, load := range b.Loads {
// What the runtime starts: the launcher the build wrote beside the entrypoint, where
// it wrote one (ADR 0193); the entrypoint itself for a build from before them.
if launcher, has := b.Launchers[load]; has {
load = launcher
}
served = append(served, m.Module+"="+BundlePath(m.Module, b.Name)+"/"+load)
}
restartOn = append(restartOn, m.Module+"."+BundleID(b.Name))
}
}
sort.Strings(served)
restartOn = append(restartOn, RuntimeModule+"."+NeedID("broker"))
sort.Strings(restartOn)
env := map[string]string{
RuntimeToolModules: strings.Join(served, ","),
RuntimeBrokerFile: credential.Path,
}
if len(given) > 0 {
// Marshalled from maps, whose keys encoding/json sorts: the same words, the same unit.
body, err := json.Marshal(given)
if err != nil {
return nil, err
}
env[RuntimeToolEnv] = string(body)
}
process := map[string]any{
"id": RuntimeModule + "." + RuntimeProcessID(), "type": "process", "name": RuntimeModule,
"source": bundle.Source, "digest": bundle.Digest,
"run": run,
"env": env,
"restart-on": toAny(restartOn),
}
if r.Account != "" {
env[RuntimeOperatorAccount] = r.Account
env[RuntimeOperatorHome] = accountHomeOf(r.Account, r.AccountHome)
process["user"] = r.Account
}
// Routed through the artifact store as this network reaches it now, like everything the mesh
// built; refused with the same words when there is no store to route through.
if err := artifactsInto(process, RuntimeModule, with); err != nil {
return nil, err
}
return process, nil
}
func toAny(in []string) []any {
out := make([]any, 0, len(in))
for _, s := range in {
out = append(out, s)
}
return out
}
// RuntimeImageModule and RuntimeImageArtifact name the image every per-module tool container was
// built on: the tool runtime's own runtime image. With the runtime a module of its own, that image
// stays the way a module's SERVICE may be built and stops being the way tools reach a node (ADR 0175).
const (
RuntimeImageModule = "mesh-tools"
RuntimeImageArtifact = "runtime"
)
// ToolContainerOnTheRuntime says why a manifest is the pattern ADR 0175 retires — a module whose tools
// are served from a container built on the tool runtime's image — or nothing when it is not. Judged
// from the manifest's own `build.on` when it is a repository manifest, and from what its build stood
// on when it is a built one, because a resolved manifest carries no build. The gate itself is
// registration's (to-be 38 WP2.4): once the runtime module is in the catalogue, this is refused.
//
// Three things must hold, and each alone is fine: declaring tools (a bundle does that); a container
// (a module's service may well be one); building on the runtime's image (a service written against
// the SDK may). All three is a container whose purpose is tools, which the runtime now serves.
func ToolContainerOnTheRuntime(m Manifest, against []string) string {
if len(m.Tools) == 0 {
return ""
}
container := false
for _, r := range m.Resources {
if fmt.Sprint(r["type"]) == "container" {
container = true
}
}
if !container {
return ""
}
onTheRuntime := false
if m.Build != nil {
for _, on := range m.Build.On {
if on.Module == RuntimeImageModule && on.Artifact == RuntimeImageArtifact {
onTheRuntime = true
}
}
}
for _, ref := range against {
path, kept := InArtifactStore(Recorded(ref))
if kept && strings.HasPrefix(path, RuntimeImageModule+"/"+RuntimeImageArtifact+"@") {
onTheRuntime = true
}
}
if !onTheRuntime {
return ""
}
return fmt.Sprintf(
"%s declares tools and a container built on %s's %s image — a container whose purpose is "+
"serving tools. The node's tool runtime (%s) serves every module's tools from its bundle "+
"now (novox/hq ADR 0175, to-be 38); declare the tools as a bundle and drop the container",
m.Module, RuntimeImageModule, RuntimeImageArtifact, RuntimeModule)
}
// bundleWords is what one module's tools bundles are given on this machine (novox/hq ADR 0192):
// each loaded bundle's env, its ${dir:…} resolved to where this machine places the module's
// directories and its ${port:…} to the port this machine gave it — the same resolution a
// container's environment gets. Two bundles of one module naming one word differently is refused:
// the runtime hands a module's words to all its bundles.
func bundleWords(m Manifest, with Rendering) (map[string]string, error) {
var out map[string]string
dirs := dirsFor(m, with)
for _, b := range m.Bundles {
if len(b.Loads) == 0 || len(b.Env) == 0 {
continue
}
for _, word := range sortedKeys(b.Env) {
value, err := dirFill(b.Env[word], dirs, m.Module)
if err != nil {
return nil, err
}
if value, err = portsFilledInto(value, m.Module+"'s bundle "+b.Name+" ("+word+")", m.Module, m.Listens, with); err != nil {
return nil, err
}
if out == nil {
out = map[string]string{}
}
if was, had := out[word]; had && was != value {
return nil, fmt.Errorf("%s's bundles give %s two values (%q, %q); a module's words are "+
"handed to all its bundles, so they agree (novox/hq ADR 0192)", m.Module, word, was, value)
}
out[word] = value
}
}
return out, nil
}
// givenTo makes what a bundle's words name readable by the account the runtime runs as (novox/hq
// ADR 0192): every file and directory of the module whose path a word names, or that holds one,
// is owned by the account — a tool reads its configuration and its secret as the account, and a
// root-owned 0600 file or a 0700 directory is one it cannot. Only where it says no owner already:
// a module that named one knew why. Nothing on a machine with no account, where the runtime is root.
//
// It answers the files a word names exactly: what a tool reads, whose change the runtime must be
// restarted for, as the container the tools came from was restarted when its configuration changed.
func givenTo(out []map[string]any, owner map[string]string, words map[string]map[string]string, account string) []string {
var named []string
if len(words) == 0 {
return nil
}
for _, resource := range out {
module := owner[fmt.Sprint(resource["id"])]
mine := words[module]
if len(mine) == 0 {
continue
}
kind := fmt.Sprint(resource["type"])
if kind != "file" && kind != "directory" {
continue
}
path, _ := resource["path"].(string)
if path == "" {
continue
}
for _, value := range mine {
if kind == "file" && value == path {
named = append(named, fmt.Sprint(resource["id"]))
}
}
if _, said := resource["owner"]; said || account == "" {
continue
}
for _, value := range mine {
if value == path || strings.HasPrefix(value, strings.TrimRight(path, "/")+"/") {
resource["owner"] = account
break
}
}
}
sort.Strings(named)
return named
}
-88
View File
@@ -1,88 +0,0 @@
package catalogue
import (
"strings"
"testing"
)
// The packet-filter manifest as it was the day the runtime was decided (novox/hq ADR 0175): tools,
// served from a container built on the tool runtime's image, with NET_ADMIN so the container could
// reach the filter. The exact pattern to-be 38 WP4 moves it off, and the one the gate refuses.
const thePacketFilterAsItWas = `{
"module": "nftables",
"version": "1",
"capabilities": ["firewall", "container-runtime"],
"claims": [{"name": "node-packet-filter", "scope": "node", "serves": ["rules", "reload", "remove"]}],
"filtering": {"into": "/etc/nftables.conf"},
"resources": [
{"id": "mesh-state", "type": "directory", "mode": "0700", "place": "mesh"},
{"id": "package", "type": "package", "package": "nftables"},
{"id": "unit", "type": "file", "path": "/etc/systemd/system/mesh-filter.service",
"content": "[Unit]\nDescription=The mesh's packet filter\n[Service]\nType=oneshot\nExecStart=nft -f /etc/nftables.conf\n", "mode": "0644"},
{"id": "load", "type": "service", "unit": "mesh-filter.service", "state": "running", "boot": "enabled",
"restart-on": ["unit"], "reload-on": ["filtering"]},
{"id": "runtime", "type": "container", "name": "mesh-nftables", "network": "host",
"capabilities": ["NET_ADMIN"],
"volumes": ["${dir:mesh-state}/broker:/run/secrets/broker:ro", "/etc/nftables.conf:/etc/nftables.conf:ro"],
"env": {"MESH_BROKER_FILE": "/run/secrets/broker", "MESH_FILTER_FILE": "/etc/nftables.conf"},
"artifact": "runtime"}
],
"tools": ["firewall_rules"],
"own-secrets": {"broker": "${dir:mesh-state}/broker"},
"build": {
"on": [
{"arg": "BUILD_BASE", "module": "mesh-tools", "artifact": "build"},
{"arg": "RUNTIME_BASE", "module": "mesh-tools", "artifact": "runtime"}
],
"artifacts": [{"name": "runtime", "kind": "image", "from": "Dockerfile"}]
}
}`
func TestAToolContainerOnTheRuntimeImageIsNamedForWhatItIs(t *testing.T) {
m, err := ParseManifest([]byte(thePacketFilterAsItWas))
if err != nil {
t.Fatal(err)
}
// From the repository: the manifest says what it builds on.
why := ToolContainerOnTheRuntime(m, nil)
if why == "" {
t.Fatal("the packet filter's tool container was not recognised from its build")
}
for _, word := range []string{"nftables", "mesh-tools", "runtime", "ADR 0175", "bundle"} {
if !strings.Contains(why, word) {
t.Errorf("the refusal does not say %q: %s", word, why)
}
}
// Built: the manifest carries no build, and what it stood on says the same.
built, err := m.Resolve([]Built{{Name: "runtime", Kind: ArtifactImage,
Reference: ArtifactStoreScheme + "nftables/runtime@" + digest}})
if err != nil {
t.Fatal(err)
}
stoodOn := []string{"anchor.internal:5100/mesh-tools/build@" + digest, "anchor.internal:5100/mesh-tools/runtime@" + digest}
if ToolContainerOnTheRuntime(built, stoodOn) == "" {
t.Error("the packet filter's tool container was not recognised from what its build stood on")
}
if ToolContainerOnTheRuntime(built, nil) != "" {
t.Error("a built manifest with no record of its base was judged to be on the runtime")
}
// Each of the three alone is an ordinary module.
bundle := m
bundle.Resources = m.Resources[:len(m.Resources)-1]
if ToolContainerOnTheRuntime(bundle, nil) != "" {
t.Error("a module with tools and no container is the pattern the runtime serves, and was refused")
}
service := m
service.Tools = nil
if ToolContainerOnTheRuntime(service, nil) != "" {
t.Error("a service built against the SDK, declaring no tools, was refused")
}
elsewhere := m
elsewhere.Build = &Build{On: []BuildsOn{{Arg: "NODE_BASE", Image: "node@" + digest}},
Artifacts: m.Build.Artifacts}
if ToolContainerOnTheRuntime(elsewhere, nil) != "" {
t.Error("a tool container on a public base was refused as though it were on the runtime's")
}
}
-459
View File
@@ -1,459 +0,0 @@
package catalogue
import (
"encoding/json"
"fmt"
"strings"
"testing"
)
// The node's tool runtime (novox/hq ADR 0175, to-be 38): where the runtime module is assigned, a
// machine is sent every assigned module's tools bundle as an archive, and the runtime's own process
// loading them. Where it is not, the machine is sent exactly what it was sent before.
var bundleDigest = "sha256:" + strings.Repeat("b", 64)
// aToolsModule is a module whose tools come as a compiled bundle and nothing else — the shape every
// module takes once its tool container goes (to-be 38 WP4).
func aToolsModule(t *testing.T, name string, entrypoints ...string) Manifest {
t.Helper()
m := Manifest{Module: name, Version: "1", Tools: []string{"status"},
Build: &Build{Artifacts: []Artifact{
{Name: "tools", Kind: ArtifactBundle, Language: "typescript", Entrypoints: entrypoints},
}}}
resolved, err := m.Resolve([]Built{{Name: "tools", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + name + "/tools/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
return resolved
}
// theRuntime is the runtime module as the catalogue holds it: its own bundle, run rather than
// loaded, and its broker secret to receive the node's credential in.
func theRuntime(t *testing.T) Manifest {
t.Helper()
m := Manifest{Module: RuntimeModule, Version: "1",
OwnSecrets: OwnSecrets{"broker": {Path: "/var/lib/mesh/" + RuntimeModule + "/broker"}},
Build: &Build{Artifacts: []Artifact{{Name: "runtime", Kind: ArtifactBundle, Language: "typescript",
Entrypoints: []string{"src/main.js"}}}}}
resolved, err := m.Resolve([]Built{{Name: "runtime", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + RuntimeModule + "/runtime/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
return resolved
}
func TestABuildsBundlesAreCarriedOnTheResolvedManifest(t *testing.T) {
m := aToolsModule(t, "nftables", "tools/index.js")
if len(m.Bundles) != 1 {
t.Fatalf("the resolved manifest carries %d bundle(s), not the one the build made", len(m.Bundles))
}
b := m.Bundles[0]
if b.Name != "tools" || b.Digest != bundleDigest || b.Language != "typescript" ||
b.Source != ArtifactStoreScheme+"nftables/tools/blobs/"+bundleDigest ||
len(b.Entrypoints) != 1 || b.Entrypoints[0] != "tools/index.js" {
t.Errorf("the bundle is carried as %+v", b)
}
// A repository manifest may not write what the build derives.
raw := `{"module":"x","version":"1","build":{"artifacts":[{"name":"t","kind":"bundle","language":"typescript"}]},` +
`"bundles":[{"name":"t","source":"s","digest":"` + bundleDigest + `"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), "bundles") {
t.Errorf("a manifest stating its build's output by hand was accepted: %v", err)
}
}
func TestEveryToolsBundleIsDeliveredWhereTheRuntimeRuns(t *testing.T) {
store := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-credential"}}}
nftables := aToolsModule(t, "nftables", "tools/index.js")
zsh := aToolsModule(t, "zsh", "tools/index.js", "tools/more.js")
t.Run("with the runtime, one archive per tools bundle", func(t *testing.T) {
r := Resolution{Node: "anchor", Modules: []Manifest{nftables, zsh, theRuntime(t)}}
out, err := r.Declaration(store)
if err != nil {
t.Fatal(err)
}
archive := fileNamed(out, "nftables."+BundleID("tools"))
if archive == nil {
t.Fatalf("nftables' tools bundle was not delivered: %v", ids(out))
}
if archive["type"] != "archive" || archive["digest"] != bundleDigest ||
archive["path"] != BundleRoot+"/nftables/tools" {
t.Errorf("delivered as %v", archive)
}
if archive["source"] != "http://anchor.internal:5101/v2/nftables/tools/blobs/"+bundleDigest {
t.Errorf("fetched from %v, not through the store as this network reaches it", archive["source"])
}
if fileNamed(out, "zsh."+BundleID("tools")) == nil {
t.Errorf("zsh's tools bundle was not delivered: %v", ids(out))
}
// The runtime's own bundle is run, not loaded: its process delivers it, not an archive.
if fileNamed(out, RuntimeModule+"."+BundleID("runtime")) != nil {
t.Error("the runtime's own bundle was delivered as an archive beside its process")
}
})
t.Run("without the runtime, nothing changes", func(t *testing.T) {
r := Resolution{Node: "anchor", Modules: []Manifest{nftables, zsh}}
out, err := r.Declaration(store)
if err != nil {
t.Fatal(err)
}
for _, id := range ids(out) {
if strings.Contains(id, BundleID("")) {
t.Errorf("%s was delivered to a machine running no runtime to load it", id)
}
}
})
}
func ids(out []map[string]any) []string {
var names []string
for _, r := range out {
names = append(names, r["id"].(string))
}
return names
}
// One process per machine runs the runtime from its own bundle, told what it serves and from where,
// where its credential is, and who the operator is — restarted when any of that changes.
func TestTheMachineRunsOneRuntimeLoadingEveryDeliveredBundle(t *testing.T) {
with := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-credential"}}}
nftables := aToolsModule(t, "nftables", "tools/index.js")
// A bundle carrying a daemon beside its tools says which files the runtime loads.
showcase := Manifest{Module: "showcase", Version: "1", Tools: []string{"greet"},
Build: &Build{Artifacts: []Artifact{{Name: "code", Kind: ArtifactBundle, Language: "typescript",
Entrypoints: []string{"daemon/index.js", "tools/index.js"}, Loads: []string{"tools/index.js"}}}}}
showcase, err := showcase.Resolve([]Built{{Name: "code", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "showcase/code/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
r := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{nftables, showcase, theRuntime(t)}}
out, err := r.Declaration(with)
if err != nil {
t.Fatal(err)
}
process := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())
if process == nil {
t.Fatalf("no runtime process was composed: %v", ids(out))
}
if process["type"] != "process" || process["name"] != RuntimeModule || process["digest"] != bundleDigest ||
process["source"] != "http://anchor.internal:5101/v2/"+RuntimeModule+"/runtime/blobs/"+bundleDigest {
t.Errorf("the runtime's process is %v", process)
}
if fmt.Sprint(process["run"]) != "[node src/main.js]" {
t.Errorf("the runtime is run as %v; its bundle's one entrypoint, by its language's interpreter", process["run"])
}
env := process["env"].(map[string]string)
if env[RuntimeToolModules] != "nftables="+BundleRoot+"/nftables/tools/tools/index.js,"+
"showcase="+BundleRoot+"/showcase/code/tools/index.js" {
t.Errorf("the runtime is told to serve %q: every loaded file, by module, and nothing a bundle runs", env[RuntimeToolModules])
}
if env[RuntimeBrokerFile] != "/var/lib/mesh/"+RuntimeModule+"/broker" {
t.Errorf("the runtime reads its credential at %q, not where the module's own secret is placed", env[RuntimeBrokerFile])
}
if env[RuntimeOperatorAccount] != "ops" || env[RuntimeOperatorHome] != "/home/ops" || process["user"] != "ops" {
t.Errorf("the operator is not handed to the runtime: %v as %v", env, process["user"])
}
// The credential the process reads belongs to the account it runs as, or it could not read it
// (to-be 38 WP3); other modules' secrets are left as their manifests say.
if credential := fileNamed(out, RuntimeModule+"."+NeedID("broker")); credential == nil || credential["owner"] != "ops" {
t.Errorf("the runtime's credential is not the account's to read: %v", credential)
}
restarts := fmt.Sprint(process["restart-on"])
for _, want := range []string{"nftables." + BundleID("tools"), "showcase." + BundleID("code"), RuntimeModule + "." + NeedID("broker")} {
if !strings.Contains(restarts, want) {
t.Errorf("the runtime is not restarted when %s changes: %s", want, restarts)
}
}
// After every bundle and the credential, so both exist before it starts.
names := ids(out)
if names[len(names)-1] != RuntimeModule+"."+RuntimeProcessID() {
t.Errorf("the runtime's process is not last: %v", names)
}
t.Run("a machine with no account runs it as root without the operator words", func(t *testing.T) {
out, err := Resolution{Node: "anchor", Modules: []Manifest{nftables, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
process := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())
env := process["env"].(map[string]string)
if _, set := env[RuntimeOperatorAccount]; set {
t.Error("an operator account was named on a machine that has none")
}
if _, set := process["user"]; set {
t.Error("a user was set on a machine with no account")
}
if credential := fileNamed(out, RuntimeModule+"."+NeedID("broker")); credential == nil || credential["owner"] != nil {
t.Errorf("the runtime's credential was given an owner on a machine with no account: %v", credential)
}
})
t.Run("a runtime module built wrong is refused by name", func(t *testing.T) {
two := Manifest{Module: RuntimeModule, Version: "1", OwnSecrets: OwnSecrets{"broker": {Path: "/b"}},
Build: &Build{Artifacts: []Artifact{{Name: "runtime", Kind: ArtifactBundle, Language: "typescript",
Entrypoints: []string{"a.js", "b.js"}}}}}
resolved, err := two.Resolve([]Built{{Name: "runtime", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "x/runtime/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
_, err = Resolution{Node: "anchor", Modules: []Manifest{resolved}}.Declaration(with)
if err == nil || !strings.Contains(err.Error(), "entrypoint") {
t.Errorf("a runtime bundle with two entrypoints was composed: %v", err)
}
})
}
// novox/hq ADR 0192: a tools bundle says what it is given; the composer resolves it per machine as
// a container's environment, hands it to the runtime as the module's words, and makes what the
// words name readable by the account the runtime runs as.
func TestABundleIsGivenItsWordsResolvedForThisMachine(t *testing.T) {
with := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{
RuntimeModule: {"broker": "sealed-credential"},
"dash": {"token": "sealed-token"},
}}
dash := Manifest{Module: "dash", Version: "1", Tools: []string{"status"},
Listens: []Listening{{Name: "web", Port: 3000, Protocol: "tcp"}},
OwnSecrets: OwnSecrets{"token": {Path: "${dir:mesh-state}/token"}},
Resources: []map[string]any{
{"id": "mesh-state", "type": "directory", "mode": "0700", "place": "mesh"},
{"id": "config", "type": "file", "path": "${dir:mesh-state}/config.json", "mode": "0600", "content": "{}\n"},
{"id": "unrelated", "type": "file", "path": "/etc/dash.conf", "content": "x\n"},
},
Build: &Build{Artifacts: []Artifact{{Name: "tools", Kind: ArtifactBundle, Language: "typescript",
Entrypoints: []string{"tools/index.js"},
Env: map[string]string{
"DASH_CONFIG_FILE": "${dir:mesh-state}/config.json",
"DASH_TOKEN_FILE": "${dir:mesh-state}/token",
"DASH_URL": "http://127.0.0.1:${port:3000}",
"DASH_ADMIN": "mesh-admin",
}}}}}
if problems := dash.Build.problems(dash.Module); len(problems) > 0 {
t.Fatalf("a bundle's words written with ${dir:…} and ${port:…} were refused: %v", problems)
}
dash, err := dash.Resolve([]Built{{Name: "tools", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "dash/tools/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
other := aToolsModule(t, "nftables", "tools/index.js")
out, err := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{dash, other, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
dir := fileNamed(out, "dash.mesh-state")
if dir == nil {
t.Fatalf("no directory: %v", ids(out))
}
at := fmt.Sprint(dir["path"])
process := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())
env := process["env"].(map[string]string)
var given map[string]map[string]string
if err := json.Unmarshal([]byte(env[RuntimeToolEnv]), &given); err != nil {
t.Fatalf("the runtime's %s is not JSON: %q", RuntimeToolEnv, env[RuntimeToolEnv])
}
want := map[string]string{
"DASH_CONFIG_FILE": at + "/config.json",
"DASH_TOKEN_FILE": at + "/token",
"DASH_URL": "http://127.0.0.1:3000",
"DASH_ADMIN": "mesh-admin",
}
if fmt.Sprint(given["dash"]) != fmt.Sprint(want) {
t.Errorf("dash is given %v, want %v", given["dash"], want)
}
if _, has := given["nftables"]; has {
t.Errorf("a module that declares no words was given some: %v", given)
}
// What the words name is the account's to read; nothing else of the module's is touched.
for _, id := range []string{"dash.mesh-state", "dash.config", "dash." + NeedID("token")} {
if r := fileNamed(out, id); r == nil || r["owner"] != "ops" {
t.Errorf("%s is not the account's to read: %v", id, r)
}
}
if r := fileNamed(out, "dash.unrelated"); r == nil || r["owner"] != nil {
t.Errorf("a file no word names was given an owner: %v", r)
}
// A file a word names restarts the runtime when it changes, as it restarted the tool container.
restarts := fmt.Sprint(process["restart-on"])
for _, want := range []string{"dash.config", "dash." + NeedID("token")} {
if !strings.Contains(restarts, want) {
t.Errorf("the runtime is not restarted when %s changes: %s", want, restarts)
}
}
if strings.Contains(restarts, "dash.unrelated") || strings.Contains(restarts, "dash.mesh-state") {
t.Errorf("the runtime restarts for something no word names as a file: %s", restarts)
}
t.Run("on a machine with no account the runtime is root and nothing is re-owned", func(t *testing.T) {
out, err := Resolution{Node: "anchor", Modules: []Manifest{dash, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
if r := fileNamed(out, "dash.config"); r["owner"] != nil {
t.Errorf("re-owned with no account: %v", r)
}
})
t.Run("a change to a module's words changes the runtime's process", func(t *testing.T) {
changed := dash
changed.Bundles = append([]Bundle(nil), dash.Bundles...)
changed.Bundles[0].Env = map[string]string{"DASH_ADMIN": "somebody-else"}
out2, err := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{changed, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
if fmt.Sprint(fileNamed(out2, RuntimeModule+"."+RuntimeProcessID())["env"]) == fmt.Sprint(env) {
t.Error("the runtime's process is the same after a module's words changed, so it would not restart")
}
})
}
func TestABundlesWordsAreRefusedWhenTheyAreNotPathsOrConstants(t *testing.T) {
m := Manifest{Module: "dash", Version: "1", Build: &Build{Artifacts: []Artifact{
{Name: "tools", Kind: ArtifactBundle, Language: "typescript", Entrypoints: []string{"tools/index.js"},
Env: map[string]string{"DASH_TOKEN": "${secret:token}", RuntimeBrokerFile: "/x", "DASH_PEER": "${bound:db:url}"}},
{Name: "runtime", Kind: ArtifactImage, From: "Dockerfile", Env: map[string]string{"X": "y"}},
}}}
said := strings.Join(m.Build.problems(m.Module), "\n")
for _, want := range []string{
`"tools" gives DASH_TOKEN the value "${secret:token}"`,
`"tools" gives DASH_PEER the value "${bound:db:url}"`,
`"tools" gives itself ` + RuntimeBrokerFile,
`"runtime" is a "image" and says what it is given`,
} {
if !strings.Contains(said, want) {
t.Errorf("not refused: %s\nsaid:\n%s", want, said)
}
}
}
// novox/hq ADR 0193: the runtime is told the launcher a build wrote, and the entrypoint itself for a
// build from before launchers — so the move needs no flag day.
func TestTheRuntimeStartsTheLauncherWhereTheBuildWroteOne(t *testing.T) {
with := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-credential"}}}
launched := Manifest{Module: "dash", Version: "1", Tools: []string{"status"},
Build: &Build{Artifacts: []Artifact{{Name: "tools", Kind: ArtifactBundle, Language: "typescript",
Entrypoints: []string{"tools/index.js"}}}}}
launched, err := launched.Resolve([]Built{{Name: "tools", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "dash/tools/blobs/" + bundleDigest, Digest: bundleDigest,
Launchers: map[string]string{"tools/index.js": "tools/index.serve.mjs"}}})
if err != nil {
t.Fatal(err)
}
older := aToolsModule(t, "nftables", "tools/index.js")
out, err := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{launched, older, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
env := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())["env"].(map[string]string)
want := "dash=" + BundleRoot + "/dash/tools/tools/index.serve.mjs,nftables=" + BundleRoot + "/nftables/tools/tools/index.js"
if env[RuntimeToolModules] != want {
t.Errorf("the runtime is told %q, want %q", env[RuntimeToolModules], want)
}
}
// novox/hq ADR 0193: a runtime compiled to a binary runs itself from its own unpacked bundle.
func TestARuntimeCompiledToABinaryRunsItself(t *testing.T) {
with := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-credential"}}}
goRuntime := Manifest{Module: RuntimeModule, Version: "1",
OwnSecrets: OwnSecrets{"broker": {Path: "/var/lib/mesh/" + RuntimeModule + "/broker"}},
Build: &Build{Artifacts: []Artifact{{Name: "runtime", Kind: ArtifactBundle, Language: "go",
System: "arch", From: "cmd/node-tools"}}}}
goRuntime, err := goRuntime.Resolve([]Built{{Name: "runtime", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + RuntimeModule + "/runtime/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
out, err := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{aToolsModule(t, "nftables", "tools/index.js"), goRuntime}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
process := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())
if fmt.Sprint(process["run"]) != "[./node-tools]" {
t.Errorf("a Go runtime is run as %v, want its own binary", process["run"])
}
env := process["env"].(map[string]string)
if env[RuntimeToolModules] == "" || process["user"] != "ops" {
t.Errorf("the Go runtime is not told what to serve or whose it is: %v %v", env, process["user"])
}
}
// novox/hq 04-ISSUES/216: a bundle nothing loads, runs or unpacks is refused at registration; saying
// `loads`, listing `tools`, or a resource naming it admits it.
func TestABundleNothingDeliversIsRefused(t *testing.T) {
base := func() Manifest {
return Manifest{Module: "baserow", Version: "1", Build: &Build{Artifacts: []Artifact{
{Name: "tools", Kind: ArtifactBundle, Language: "typescript", Entrypoints: []string{"tools/index.js"}}}}}
}
if p := undeliveredBundles(base()); len(p) != 1 || !strings.Contains(p[0], "never reach a machine") {
t.Fatalf("a bundle nothing delivers was admitted: %v", p)
}
loads := base()
loads.Build.Artifacts[0].Loads = []string{"tools/index.js"}
tools := base()
tools.Tools = []string{"baserow_list_rows"}
run := base()
run.Resources = []map[string]any{{"id": "daemon", "type": "process", "artifact": "tools", "run": []any{"node", "tools/index.js"}}}
runtime := base()
runtime.Module = RuntimeModule
for name, m := range map[string]Manifest{"loads": loads, "tools": tools, "a process": run, "the runtime": runtime} {
if p := undeliveredBundles(m); len(p) != 0 {
t.Errorf("a bundle delivered by %s was refused: %v", name, p)
}
}
}
// novox/hq ADR 0193: a Go tools bundle is served — its binary is what the runtime starts, delivered
// like any tools bundle, named to the runtime where a TypeScript bundle names its launcher.
func TestAGoToolsBundleIsServedByItsBinary(t *testing.T) {
with := Rendering{ArtifactStore: "anchor.internal:5101",
Needed: map[string]map[string]string{RuntimeModule: {"broker": "sealed-credential"}}}
lamp := Manifest{Module: "lamp", Version: "1", Tools: []string{"on"},
Build: &Build{Artifacts: []Artifact{{Name: "tools", Kind: ArtifactBundle, Language: "go",
System: "arch", From: "cmd/lamp-tools"}}}}
if p := lamp.Build.problems("lamp"); len(p) != 0 {
t.Fatalf("a Go tools bundle was refused: %v", p)
}
lamp, err := lamp.Resolve([]Built{{Name: "tools", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "lamp/tools/blobs/" + bundleDigest, Digest: bundleDigest}})
if err != nil {
t.Fatal(err)
}
if fmt.Sprint(lamp.Bundles[0].Loads) != "[lamp-tools]" {
t.Fatalf("the runtime loads %v from a Go bundle, want its binary", lamp.Bundles[0].Loads)
}
out, err := Resolution{Node: "anchor", Account: "ops", Modules: []Manifest{lamp, theRuntime(t)}}.Declaration(with)
if err != nil {
t.Fatal(err)
}
if fileNamed(out, "lamp."+BundleID("tools")) == nil {
t.Errorf("the Go bundle is not delivered: %v", ids(out))
}
env := fileNamed(out, RuntimeModule+"."+RuntimeProcessID())["env"].(map[string]string)
if env[RuntimeToolModules] != "lamp="+BundlePath("lamp", "tools")+"/lamp-tools" {
t.Errorf("the runtime is told %q, want the binary", env[RuntimeToolModules])
}
// An artifact may say it explicitly; naming anything but the binary is refused.
said := Manifest{Module: "lamp", Version: "1", Build: &Build{Artifacts: []Artifact{{Name: "tools",
Kind: ArtifactBundle, Language: "go", System: "arch", Binary: "lamp", Loads: []string{"lamp"}}}}}
if p := said.Build.problems("lamp"); len(p) != 0 {
t.Errorf("loads naming the binary was refused: %v", p)
}
said.Build.Artifacts[0].Loads = []string{"tools/index.js"}
if p := said.Build.problems("lamp"); len(p) == 0 {
t.Error("a Go bundle loading a file it does not contain was admitted")
}
}
-156
View File
@@ -1,156 +0,0 @@
package catalogue
import (
"fmt"
"regexp"
"strings"
)
// A module contributes to a seat it does not hold (novox/hq ADR 0212).
//
// ADR 0210 made a tool's configuration its seat holder's, and every other module's way in a
// contribution to the seat. The environment, the shell's slots and the power moments each became a
// field of their own; this is the general form, so a new seat that takes contributions is a row in
// the seat table rather than a change to the manifest: a contribution names a seat, a kind that
// seat receives, and text in the tool's own grammar, which the controller never reads.
// HotkeysSeat is the machine's hotkey daemon (novox/hq ADR 0212 §5).
const HotkeysSeat = "node-hotkeys"
// SeatContribution is one piece of configuration a module gives a seat's holder to place.
type SeatContribution struct {
// Seat is the seat whose holder places it.
Seat string `json:"seat"`
// Kind is which of the seat's receivable kinds it is.
Kind string `json:"kind"`
// Content is the text, in the tool's own grammar. Never interpreted.
Content string `json:"content"`
}
// ofContribution is where a holder places a kind: ${contribution:<seat>:<kind>}. Loose inside the
// braces, so a misspelt seat or kind is found and refused rather than written out as text.
var ofContribution = regexp.MustCompile(`\$\{contribution:([^}]*)\}`)
// receivable is what a seat receives of a kind, with the seat's canonical name; false when the seat
// is unknown or does not receive it.
func receivable(seat, kind string) (Seat, Receivable, bool) {
s, known := SeatNamed(seat)
if !known {
return Seat{}, Receivable{}, false
}
for _, r := range s.Receives {
if r.Kind == kind {
return s, r, true
}
}
return s, Receivable{}, false
}
// kindsOf names a seat's receivable kinds for a refusal.
func kindsOf(s Seat) string {
if len(s.Receives) == 0 {
return "it receives no contributions"
}
var kinds []string
for _, r := range s.Receives {
kinds = append(kinds, r.Kind)
}
return "it receives " + strings.Join(kinds, ", ")
}
// seatContributionProblems is what is wrong with this module's contributions, from the manifest
// alone (novox/hq ADR 0212 §2).
func (m Manifest) seatContributionProblems() []string {
var problems []string
for i, c := range m.Contributions {
s, _, ok := receivable(c.Seat, c.Kind)
switch {
case s.Name == "":
problems = append(problems, fmt.Sprintf(
"%s's contribution %d is to the seat %q, which the mesh does not define", m.Module, i+1, c.Seat))
case !ok:
problems = append(problems, fmt.Sprintf(
"%s's contribution %d to %s is of the kind %q; %s (novox/hq ADR 0212)",
m.Module, i+1, s.Name, c.Kind, kindsOf(s)))
}
if strings.TrimSpace(c.Content) == "" {
problems = append(problems, fmt.Sprintf("%s's contribution %d has no content", m.Module, i+1))
}
}
return problems
}
// seatPlaceholderProblems is what is wrong with one resource's ${contribution:…}: placed only in a
// file's content, naming a seat and a kind it receives, and only by a module that claims that seat
// — another would be a second writer of a file there is one of (novox/hq ADR 0212 §3).
func seatPlaceholderProblems(m Manifest, r map[string]any) []string {
var problems []string
for _, field := range sortedKeys(r) {
v, ok := r[field].(string)
if !ok {
continue
}
found := ofContribution.FindAllStringSubmatch(v, -1)
if len(found) == 0 {
continue
}
if field != "content" {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s in its %s; contributions are placed only in a file's content",
m.Module, r["id"], found[0][0], field))
continue
}
for _, f := range found {
seat, kind, two := strings.Cut(f[1], ":")
s, _, ok := receivable(seat, kind)
if !two || !ok {
detail := "the mesh defines no seat " + fmt.Sprintf("%q", seat)
if s.Name != "" {
detail = s.Name + ": " + kindsOf(s)
}
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s; a contribution is ${contribution:<seat>:<kind>} (%s)",
m.Module, r["id"], f[0], detail))
continue
}
if !m.ClaimsSeat(s.Name) {
problems = append(problems, fmt.Sprintf(
"%s's resource %v names %s and %s does not claim %s; every module's contributions to a "+
"seat are placed by its holder alone (novox/hq ADR 0212)",
m.Module, r["id"], f[0], m.Module, s.Name))
}
}
}
return problems
}
// seatContributions is every module's contribution of one kind to one seat (novox/hq ADR 0212 §3):
// in module order, each module's pieces in the order it declared them, each module's preceded by a
// comment line naming it in the tool's grammar, and empty when nothing is contributed.
func seatContributions(modules []Manifest, seat, kind string) string {
s, r, ok := receivable(seat, kind)
if !ok {
return ""
}
var b strings.Builder
for _, m := range inModuleOrder(modules) {
named := false
for _, c := range m.Contributions {
if c.Kind != kind {
continue
}
if cs, known := SeatNamed(c.Seat); !known || cs.Name != s.Name {
continue
}
if !named {
fmt.Fprintf(&b, "%s %s\n", r.Comment, m.Module)
named = true
}
b.WriteString(c.Content)
if !strings.HasSuffix(c.Content, "\n") {
b.WriteString("\n")
}
}
}
return b.String()
}
@@ -1,117 +0,0 @@
package catalogue
import (
"reflect"
"strings"
"testing"
)
// Defends novox/hq ADR 0212: a seat says what it receives, its holder places it, and a contribution
// depends on the seat.
func hotkeysHolder() Manifest {
return Manifest{Module: "triggerhappy", Claims: []Claim{{Name: HotkeysSeat}}, Resources: []map[string]any{
{"id": "triggers", "type": "file", "path": "/etc/triggerhappy/triggers.d/mesh.conf",
"content": "# the mesh's triggers\n${contribution:node-hotkeys:trigger}"},
}}
}
func TestAContributionReachesTheHoldersFileInModuleOrderNamedByModule(t *testing.T) {
laptop := Manifest{Module: "laptop", Contributions: []SeatContribution{
{Seat: HotkeysSeat, Kind: "trigger", Content: "KEY_PROG1 1 play ${machine:account-home}"},
{Seat: HotkeysSeat, Kind: "trigger", Content: "KEY_F21 1 touchpad\n"},
}}
another := Manifest{Module: "another", Contributions: []SeatContribution{
{Seat: HotkeysSeat, Kind: "trigger", Content: "KEY_MUTE 1 mute ${shell:zsh:first}"},
}}
unrelated := Manifest{Module: "bar", Contributions: []SeatContribution{
{Seat: DisplaySessionSeat, Kind: "config", Content: "bar { }"},
}}
r := Resolution{Node: "laptop", Account: "op", Modules: []Manifest{hotkeysHolder(), laptop, another, unrelated}}
out, err := r.Declaration(Rendering{})
if err != nil {
t.Fatal(err)
}
var file map[string]any
for _, res := range out {
if res["id"] == "triggerhappy.triggers" {
file = res
}
}
if file == nil {
t.Fatalf("the holder's file was not composed: %v", out)
}
// Module order; each module named once; text never read, so neither ${machine:…} nor ${shell:…}
// inside a contribution is filled.
want := "# the mesh's triggers\n" +
"# another\nKEY_MUTE 1 mute ${shell:zsh:first}\n" +
"# laptop\nKEY_PROG1 1 play ${machine:account-home}\nKEY_F21 1 touchpad\n"
if got := file["content"]; got != want {
t.Fatalf("the holder's file is\n%s\nnot\n%s", got, want)
}
}
func TestNoContributionPlacesNothing(t *testing.T) {
r := Resolution{Node: "laptop", Account: "op", Modules: []Manifest{hotkeysHolder()}}
out, err := r.Declaration(Rendering{})
if err != nil {
t.Fatal(err)
}
for _, res := range out {
if res["id"] == "triggerhappy.triggers" && res["content"] != "# the mesh's triggers\n" {
t.Fatalf("an empty kind left %q", res["content"])
}
}
}
func TestAContributionToASeatThatDoesNotReceiveItIsRefused(t *testing.T) {
cases := map[string]string{
`{"seat":"node-hotkeys","kind":"config","content":"x"}`: "it receives trigger",
`{"seat":"node-nothing","kind":"trigger","content":"x"}`: "the mesh does not define",
`{"seat":"node-hotkeys","kind":"trigger","content":" "}`: "has no content",
`{"seat":"node-display-session","kind":"trigger","content":"x"}`: "it receives config",
}
for c, want := range cases {
raw := `{"module":"laptop","contributions":[` + c + `]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), want) {
t.Errorf("%s: accepted, or refused without %q: %v", c, want, err)
}
}
}
func TestAContributionPlaceholderOutsideTheHolderIsRefused(t *testing.T) {
raw := `{"module":"laptop","resources":[{"id":"t","type":"file","path":"/etc/t","content":"${contribution:node-hotkeys:trigger}"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), "laptop does not claim node-hotkeys") {
t.Errorf("a placeholder outside the holder was accepted: %v", err)
}
raw = `{"module":"triggerhappy","claims":[{"name":"node-hotkeys"}],"resources":[{"id":"t","type":"file","path":"/etc/t","content":"${contribution:node-hotkeys:keys}"}]}`
if _, err := ParseManifest([]byte(raw)); err == nil || !strings.Contains(err.Error(), "it receives trigger") {
t.Errorf("a placeholder for a kind the seat does not receive was accepted: %v", err)
}
}
func TestAContributionDependsOnItsSeat(t *testing.T) {
m := Manifest{Module: "laptop", Contributions: []SeatContribution{
{Seat: HotkeysSeat, Kind: "trigger", Content: "x"},
{Seat: DisplaySessionSeat, Kind: "config", Content: "y"},
}}
if got, want := DependsOn(m), []string{DisplaySessionSeat, HotkeysSeat}; !reflect.DeepEqual(got, want) {
t.Errorf("depends on %v, want %v", got, want)
}
catalogue := map[string]Manifest{"laptop": m, "triggerhappy": hotkeysHolder()}
if _, err := AssignRefusal(catalogue, "laptop", nil, []string{"laptop"}); err == nil ||
!strings.Contains(err.Error(), HotkeysSeat) {
t.Errorf("a contributor without the holder was accepted: %v", err)
}
}
func TestTheHotkeysSeatIsTheMeshsAndReceivesTriggers(t *testing.T) {
s, ok := SeatNamed(HotkeysSeat)
if !ok || s.Scope != ScopeNode || len(s.Receives) != 1 || s.Receives[0].Kind != "trigger" {
t.Fatalf("%+v %v", s, ok)
}
d, _ := SeatNamed(DisplaySessionSeat)
if len(d.Receives) != 1 || d.Receives[0].Kind != "config" {
t.Fatalf("the display session receives %+v", d.Receives)
}
}
-349
View File
@@ -1,349 +0,0 @@
package catalogue
import (
"fmt"
"sort"
"strings"
)
// A module depends on the node seats that apply its resources (novox/hq ADR 0207), and on the
// seats it contributes to (novox/hq ADR 0210).
//
// Some of what a module declares is applied through software on the machine that is itself a
// module: a service through the service manager, a package through the package manager, a container
// through the container runtime. A *capability* only says that software is installed; it does not
// say that a module of the mesh holds the role and answers for it. So the dependency is derived from
// the resources — never stated in a manifest, because a module that adds a service and forgets a
// field would pass — and is met when some module assigned to the same node holds the seat.
// The three seats that apply resources (novox/hq ADR 0207 §1). Named once, because the derivation,
// the seed and the messages all turn on these strings.
const (
ServiceManagerSeat = "node-service-manager"
PackageManagerSeat = "node-package-manager"
ContainerRuntimeSeat = "node-container-runtime"
)
// appliedThrough is which seat applies a resource of each type. **Only these three**: ADR 0207
// names them and no more. A process is supervised by the host itself, a file, a directory, an
// archive, a user or an action is the host's own act, and a module's other kinds reach the machine
// without a role in between — adding one here is a decision, not a refinement.
var appliedThrough = map[string]string{
"service": ServiceManagerSeat,
"package": PackageManagerSeat,
"container": ContainerRuntimeSeat,
}
// enforceSeatDependencies is the one-line switch ADR 0207 §4 names. Off, an unmet dependency at
// composition is *reported* — in the resolution, in `status`, once in the log — and the node still
// resolves; on, it is refused like any unresolved requirement. Off until `status` reports none,
// which is when the three holders are assigned to every node: switching it before then would stop
// every machine lacking one from being sent anything at all.
//
// Switched on 2026-10-04, when `status` first reported no unmet dependency on any node: systemd,
// pacman and docker were assigned to all four machines that afternoon (novox/hq to-be 42).
//
// A variable rather than a constant only so a test can hold both behaviours; nothing else sets it.
var enforceSeatDependencies = true
// EnforcingSeatDependencies sets the switch and returns what puts it back. For tests in other
// packages that hold the behaviour from before the switch; nothing else calls it.
func EnforcingSeatDependencies(on bool) (restore func()) {
was := enforceSeatDependencies
enforceSeatDependencies = on
return func() { enforceSeatDependencies = was }
}
// foundationModules are the pieces genesis lays before any module exists (novox/hq ADR 0207 §5):
// the host and the private network. Registered as modules so they can be assigned, but what they
// declare is the installation's, not a module's, so it is never judged. The third piece, the
// bootstrap container runtime, is not a module at all: its package and service are in the genesis
// bundle the host applies itself, and never pass through a resolution here.
//
// The private network's module is overlay.Name, written out because the overlay package composes
// on top of this one; its resources are computed, which exempts it by the rule below as well.
var foundationModules = map[string]bool{
"mesh-host": true,
"mesh-wireguard": true,
}
// isFoundation is whether a module's declarations are the foundation's rather than its own. A
// module whose resources are computed is the mesh's by construction — the private network's peer
// list and its tools are the controller's, written per node — so it counts whatever its name.
func isFoundation(m Manifest) bool {
return foundationModules[m.Module] || m.Computed != ""
}
// DependsOn is every seat a module needs held on its node, derived from the resource types it
// declares itself (novox/hq ADR 0207 §2), sorted.
//
// **The module's own `resources` only.** What the controller composes around a module — its
// filter, jails, certificates, kept files, bundles, the guard — is the mesh's, put there because the
// module is assigned, and depending on it would make the module answer for the mesh's choices.
func DependsOn(m Manifest) []string {
if isFoundation(m) {
return nil
}
seen := map[string]bool{}
for _, r := range m.Resources {
if seat, applied := appliedThrough[fmt.Sprint(r["type"])]; applied {
seen[seat] = true
}
}
for _, seat := range contributedTo(m) {
seen[seat] = true
}
out := make([]string, 0, len(seen))
for s := range seen {
out = append(out, s)
}
sort.Strings(out)
return out
}
// contributedTo is every seat a module contributes to (novox/hq ADR 0210 §3): a contribution is
// configuration only the seat's holder applies, so it is a dependency on that seat exactly as a
// resource is on the seat that applies it. The environment goes to node-environment's holder
// (ADR 0203); shell code to the holder that places it for its target — the login shell's for a
// shell, the display server's for the session's start and resources (ADR 0204, ADR 0208 §4).
func contributedTo(m Manifest) []string {
var out []string
if e := m.Environment; e != nil && (len(e.Variables) > 0 || len(e.Path) > 0) {
out = append(out, EnvironmentSeat)
}
for _, c := range m.Shell {
out = append(out, placerOf(c.For))
}
// Any other seat's contribution (novox/hq ADR 0212 §4), by the seat's canonical name; one the
// mesh does not define is refused at registration and depends on nothing here.
for _, c := range m.Contributions {
if s, known := SeatNamed(c.Seat); known {
out = append(out, s.Name)
}
}
return out
}
// claimsSeat is whether a module claims a node seat, by its current name or one it used to have
// (ADR 0122), so a rename leaves the dependency met.
func claimsSeat(m Manifest, seat string) bool {
for _, c := range m.Claims {
if c.At() != ScopeNode {
continue
}
name := c.Name
if s, known := SeatNamed(name); known {
name = s.Name
}
if name == seat {
return true
}
}
return false
}
// PossibleHolders is every module in the catalogue that claims a seat at node scope — what a
// refusal names as the remedy.
func PossibleHolders(catalogue map[string]Manifest, seat string) []string {
var out []string
for name, m := range catalogue {
if claimsSeat(m, seat) {
out = append(out, name)
}
}
sort.Strings(out)
return out
}
// Unheld is one dependency of one module on a node that nothing on that node holds.
type Unheld struct {
Node string `json:"node"`
Module string `json:"module"`
Seat string `json:"seat"`
// Holders are the modules in the catalogue that could hold the seat: assigning one meets it.
Holders []string `json:"holders"`
}
// String is the line a refusal and a report both say, so the two never drift.
func (u Unheld) String() string {
remedy := "and no module in the catalogue claims it yet"
if len(u.Holders) > 0 {
remedy = "— assign one that holds it: " + strings.Join(u.Holders, ", ")
}
return fmt.Sprintf("%s on %s depends on %s, which nothing on %s holds (novox/hq ADR 0207) %s",
u.Module, u.Node, u.Seat, u.Node, remedy)
}
// UnheldDependencies is every dependency of the modules in `judged` that the node's whole set
// leaves unmet (novox/hq ADR 0207 §3).
//
// **Judged over the whole set, never one module at a time.** The holders depend on each other:
// the service manager's own package needs the package manager, and the package manager's timer
// needs the service manager. Asked one by one, neither could ever be first; asked of the set, the
// two assigned together meet each other. A module holding a seat it depends on meets its own
// dependency. `judged` nil judges every module of the set.
func UnheldDependencies(catalogue map[string]Manifest, node string, set []Manifest, judged map[string]bool) []Unheld {
held := map[string]bool{}
for _, m := range set {
for _, seat := range nodeSeatsClaimed(m) {
held[seat] = true
}
}
var out []Unheld
for _, m := range set {
if judged != nil && !judged[m.Module] {
continue
}
for _, seat := range DependsOn(m) {
if held[seat] {
continue
}
out = append(out, Unheld{Node: node, Module: m.Module, Seat: seat,
Holders: PossibleHolders(catalogue, seat)})
}
}
sort.Slice(out, func(i, j int) bool {
if out[i].Module != out[j].Module {
return out[i].Module < out[j].Module
}
return out[i].Seat < out[j].Seat
})
return out
}
// nodeSeatsClaimed is every node seat a module claims, each by its current name (ADR 0122), so
// a dependency on any of them — a resource's or a contribution's — is met by the claim.
func nodeSeatsClaimed(m Manifest) []string {
var out []string
for _, c := range m.Claims {
if c.At() != ScopeNode {
continue
}
name := c.Name
if s, known := SeatNamed(name); known {
name = s.Name
}
out = append(out, name)
}
return out
}
// manifestsOf is the catalogue's definitions of the named modules; a name the catalogue does not
// know contributes nothing, as it does to a resolution.
func manifestsOf(catalogue map[string]Manifest, names []string) []Manifest {
var out []Manifest
seen := map[string]bool{}
for _, n := range names {
if m, known := catalogue[n]; known && !seen[n] {
seen[n] = true
out = append(out, m)
}
}
return out
}
// AssignRefusal is why assigning `adding` to a node already running `assigned` is refused, or
// nothing (novox/hq ADR 0207 §4): each new module's dependency the node's assignments, the new ones
// included, leave unmet.
//
// **Only the new modules are judged.** A node already short of a holder is reported by `status`;
// refusing an unrelated assignment for it would make the remedy — assigning the holder — refused too.
//
// **A dependency nothing in the catalogue can meet is said, not refused.** A refusal names the
// module that would meet it; with none registered there is no remedy to name, and refusing would
// stop every assignment of that kind until a module that does not exist yet is written. The answer
// still says it, and `status` reports it — before the switch and after it alike: there is never a
// remedy to name for it. The first return is those lines.
func AssignRefusal(catalogue map[string]Manifest, node string, assigned, adding []string) ([]string, error) {
set := manifestsOf(catalogue, append(append([]string(nil), assigned...), adding...))
judged := map[string]bool{}
for _, a := range adding {
judged[a] = true
}
var refused, said []string
for _, u := range UnheldDependencies(catalogue, node, set, judged) {
if len(u.Holders) == 0 {
said = append(said, u.String())
continue
}
refused = append(refused, u.String())
}
if len(refused) > 0 {
return said, &Refusal{Problems: append(refused,
fmt.Sprintf("holders that depend on each other are assigned together: `assign %s <module> <module>…`", node))}
}
return said, nil
}
// UnassignRefusal is why taking `removing` off a node running `assigned` is refused, or nothing
// (novox/hq ADR 0207): a seat the removed modules hold that nothing left on the node holds, while
// a module left there depends on it. Names the dependents, because they are what must go first —
// or the holder's replacement come.
func UnassignRefusal(catalogue map[string]Manifest, node string, assigned, removing []string) error {
gone := map[string]bool{}
for _, r := range removing {
gone[r] = true
}
var left []string
for _, a := range assigned {
if !gone[a] {
left = append(left, a)
}
}
before := map[string]bool{}
for _, u := range UnheldDependencies(catalogue, node, manifestsOf(catalogue, assigned), nil) {
before[u.Module+"\x00"+u.Seat] = true
}
dependents := map[string][]string{}
for _, u := range UnheldDependencies(catalogue, node, manifestsOf(catalogue, left), nil) {
if before[u.Module+"\x00"+u.Seat] {
continue // unmet already; not this removal's doing
}
dependents[u.Seat] = append(dependents[u.Seat], u.Module)
}
if len(dependents) == 0 {
return nil
}
seats := make([]string, 0, len(dependents))
for s := range dependents {
seats = append(seats, s)
}
sort.Strings(seats)
var problems []string
for _, s := range seats {
problems = append(problems, fmt.Sprintf(
"%s holds %s on %s, and %s depend on it (novox/hq ADR 0207) — unassign them with it, "+
"or assign another holder first", strings.Join(removing, ", "), s, node,
strings.Join(dependents[s], ", ")))
}
return &Refusal{Problems: problems}
}
// CollisionRefusal is why assigning `adding` beside `assigned` is refused for what two modules
// would both declare, or nothing (novox/hq ADR 0210 §1, 04-ISSUES/235).
//
// **Refused, not kept like an unresolved provision.** An assignment is otherwise kept when the
// node does not resolve, because assignment is not an ordering: a consumer's provider can follow.
// A collision is not an order anything can complete — no further assignment makes two owners of one
// package one owner — and kept, it leaves the node unresolvable, so the next push of anything drops
// it from the mesh. Only collisions involving a module being added are refused; one already on the
// node is `status`'s, and refusing an unrelated assignment for it would block its own remedy.
func CollisionRefusal(catalogue map[string]Manifest, node string, assigned, adding []string) error {
before := map[string]bool{}
for _, p := range checkResources(manifestsOf(catalogue, assigned)) {
before[p] = true
}
var problems []string
for _, p := range checkResources(manifestsOf(catalogue, append(append([]string(nil), assigned...), adding...))) {
if before[p] {
continue // on the node already; not this assignment's doing
}
problems = append(problems, p+" (novox/hq ADR 0210: one owner per node; the other module "+
"depends on the owner's seat instead)")
}
if len(problems) == 0 {
return nil
}
sort.Strings(problems)
return &Refusal{Problems: append(problems, fmt.Sprintf("nothing was assigned to %s", node))}
}
@@ -1,247 +0,0 @@
package catalogue
import (
"errors"
"reflect"
"strings"
"testing"
)
// Defends novox/hq ADR 0207: a module depends on the node seats that apply its resources.
func res(kind, id string) map[string]any {
r := map[string]any{"id": id, "type": kind}
switch kind {
case "service":
r["unit"] = id + ".service"
case "package":
r["package"] = id
case "container":
r["image"] = id
case "file":
r["path"] = "/etc/" + id
}
return r
}
func withResources(m Manifest, rs ...map[string]any) Manifest {
m.Resources = rs
return m
}
// The three holders as to-be 42 names them, each declaring what it really does: systemd's own
// package needs the package manager, pacman's timer needs the service manager, docker's package and
// service need both.
func coreThree() []Manifest {
return []Manifest{
withResources(mod("systemd", nil, nil, nil, Claim{Name: ServiceManagerSeat}), res("package", "systemd")),
withResources(mod("pacman", nil, nil, nil, Claim{Name: PackageManagerSeat}), res("service", "pacman-refresh")),
withResources(mod("docker", nil, nil, nil, Claim{Name: ContainerRuntimeSeat}),
res("package", "docker"), res("service", "docker")),
}
}
func TestADependencyIsDerivedFromEachResourceTypeThatAppliesThroughASeat(t *testing.T) {
cases := map[string][]string{
"service": {ServiceManagerSeat},
"package": {PackageManagerSeat},
"container": {ContainerRuntimeSeat},
// The host's own acts, or the mesh's: nothing in between holds a role for them.
"file": nil, "directory": nil, "process": nil, "archive": nil, "user": nil,
"action": nil, "network": nil, "access": nil,
}
for kind, want := range cases {
got := DependsOn(withResources(mod("m", nil, nil, nil), res(kind, "x")))
if len(got) == 0 {
got = nil
}
if !reflect.DeepEqual(got, want) {
t.Errorf("a %s resource depends on %v, want %v", kind, got, want)
}
}
all := DependsOn(withResources(mod("m", nil, nil, nil),
res("container", "a"), res("service", "b"), res("package", "c"), res("package", "d")))
if want := []string{ContainerRuntimeSeat, PackageManagerSeat, ServiceManagerSeat}; !reflect.DeepEqual(all, want) {
t.Errorf("a module of every kind depends on %v, want each seat once: %v", all, want)
}
}
func TestTheSeatsThatApplyResourcesAreTheMeshsOwnAtNodeScope(t *testing.T) {
for _, name := range []string{ServiceManagerSeat, PackageManagerSeat, ContainerRuntimeSeat} {
s, ok := SeatNamed(name)
if !ok {
t.Fatalf("%s is not in the mesh's set", name)
}
if s.Scope != ScopeNode {
t.Errorf("%s is held per %s, want per node", name, s.Scope)
}
}
// No verbs yet for either new seat: ADR 0207 seeds the package manager without a protocol, and
// the runtime's verbs wait for ADR 0166's acceptance.
for _, name := range []string{PackageManagerSeat, ContainerRuntimeSeat} {
if s, _ := SeatNamed(name); len(s.Serves)+len(s.Accepts)+len(s.Emits) > 0 {
t.Errorf("%s carries a protocol; ADR 0207 seeds it with none", name)
}
}
}
func TestANodeWhoseAssignmentsHoldTheSeatsResolvesWithNothingUnheld(t *testing.T) {
web := withResources(mod("web", nil, nil, nil), res("container", "web"), res("service", "web-timer"))
cat := shelf(append(coreThree(), web)...)
got, err := Resolve(cat, []string{"systemd", "pacman", "docker", "web"}, workstation(), World{})
if err != nil {
t.Fatal(err)
}
if len(got.Unheld) != 0 {
t.Errorf("a node holding all three seats reports %v", got.Unheld)
}
if _, err := AssignRefusal(cat, "workstation", []string{"systemd", "pacman", "docker"}, []string{"web"}); err != nil {
t.Errorf("assigning beside the three holders was refused: %v", err)
}
}
func TestAnAssignmentMissingAHolderIsRefusedNamingTheSeatAndItsPossibleHolders(t *testing.T) {
web := withResources(mod("web", nil, nil, nil), res("container", "web"), res("service", "web-timer"))
cat := shelf(append(coreThree(), web)...)
_, err := AssignRefusal(cat, "workstation", []string{"systemd", "pacman"}, []string{"web"})
var refusal *Refusal
if !errors.As(err, &refusal) {
t.Fatalf("web assigned to a node without a container runtime was not refused: %v", err)
}
msg := err.Error()
for _, want := range []string{"web on workstation depends on " + ContainerRuntimeSeat, "docker", "ADR 0207"} {
if !strings.Contains(msg, want) {
t.Errorf("the refusal does not say %q:\n%s", want, msg)
}
}
// What the node does hold is not named as missing.
if strings.Contains(msg, "depends on "+ServiceManagerSeat) {
t.Errorf("the refusal names a seat systemd already holds:\n%s", msg)
}
}
func TestADependencyNoCatalogueModuleCanMeetIsSaidNeverRefused(t *testing.T) {
// No runtime module in the catalogue: refusing would stop every container's assignment until one
// is written, with no remedy to name — so it is said, with the switch on as with it off.
web := withResources(mod("web", nil, nil, nil), res("container", "web"))
cat := shelf(web)
for _, on := range []bool{false, true} {
enforceSeatDependencies = on
said, err := AssignRefusal(cat, "workstation", nil, []string{"web"})
if err != nil {
t.Fatalf("switch %v: a dependency nothing could meet was refused: %v", on, err)
}
if len(said) != 1 || !strings.Contains(said[0], "no module in the catalogue claims it yet") {
t.Errorf("switch %v: the assignment does not say what it depends on: %v", on, said)
}
if _, err := Resolve(cat, []string{"web"}, workstation(), World{}); err != nil {
t.Errorf("switch %v: a dependency nothing could meet refused the node: %v", on, err)
}
}
enforceSeatDependencies = true
}
func TestTheHoldersMutualDependenceResolvesWhenAssignedTogether(t *testing.T) {
cat := shelf(coreThree()...)
// Alone, each needs the other.
if _, err := AssignRefusal(cat, "workstation", nil, []string{"systemd"}); err == nil ||
!strings.Contains(err.Error(), "pacman") {
t.Errorf("systemd alone was not refused naming pacman: %v", err)
}
if _, err := AssignRefusal(cat, "workstation", nil, []string{"pacman"}); err == nil ||
!strings.Contains(err.Error(), "systemd") {
t.Errorf("pacman alone was not refused naming systemd: %v", err)
}
// Together, in one act, they meet each other — and docker meets its own seat.
if _, err := AssignRefusal(cat, "workstation", nil, []string{"systemd", "pacman", "docker"}); err != nil {
t.Errorf("the three holders assigned together were refused: %v", err)
}
got, err := Resolve(cat, []string{"systemd", "pacman"}, workstation(), World{})
if err != nil {
t.Fatal(err)
}
if len(got.Unheld) != 0 {
t.Errorf("systemd and pacman together report %v", got.Unheld)
}
}
func TestStatusIsToldOfAnUnmetDependencyAndTheNodeStillResolves(t *testing.T) {
// Before the switch (the state the mesh ran in until every node held the three seats).
enforceSeatDependencies = false
defer func() { enforceSeatDependencies = true }()
web := withResources(mod("web", nil, nil, nil), res("container", "web"))
cat := shelf(append(coreThree(), web)...)
got, err := Resolve(cat, []string{"web"}, workstation(), World{})
if err != nil {
t.Fatalf("an unmet dependency refused the node before the switch: %v", err)
}
want := []Unheld{{Node: "workstation", Module: "web", Seat: ContainerRuntimeSeat, Holders: []string{"docker"}}}
if !reflect.DeepEqual(got.Unheld, want) {
t.Errorf("reported %+v, want %+v", got.Unheld, want)
}
}
func TestWithTheSwitchFlippedAnUnmetDependencyRefusesTheNode(t *testing.T) {
enforceSeatDependencies = true
defer func() { enforceSeatDependencies = true }()
web := withResources(mod("web", nil, nil, nil), res("container", "web"))
cat := shelf(append(coreThree(), web)...)
_, err := Resolve(cat, []string{"web"}, workstation(), World{})
if err == nil || !strings.Contains(err.Error(), ContainerRuntimeSeat) || !strings.Contains(err.Error(), "docker") {
t.Fatalf("with the switch on, an unmet dependency gave %v", err)
}
// Never in the first pass, whose refusals take a machine off the network instead.
if _, err := Resolve(cat, []string{"web"}, workstation(), World{Unchecked: true}); err != nil {
t.Errorf("the first pass refused an unmet dependency: %v", err)
}
}
func TestTheFoundationsDeclarationsAreNotJudged(t *testing.T) {
// The private network, as the controller computes it: its tools' package and its service are
// the mesh's, written per node, and so are never a module's dependency.
network := withResources(mod("mesh-wireguard", []string{"private-network"}, nil, nil),
res("package", "wireguard-tools"), res("service", "overlay-up"))
network.Computed = "mesh-wireguard"
// The host, whatever it declares.
host := withResources(mod("mesh-host", nil, nil, nil), res("file", "launcher"), res("service", "nox-mesh-host"))
cat := shelf(append(coreThree(), network, host)...)
for _, m := range []Manifest{network, host} {
if d := DependsOn(m); len(d) != 0 {
t.Errorf("%s, the foundation's, depends on %v", m.Module, d)
}
}
got, err := Resolve(cat, []string{"mesh-wireguard", "mesh-host"}, workstation(), World{})
if err != nil {
t.Fatal(err)
}
if len(got.Unheld) != 0 {
t.Errorf("the foundation on a node with no holders reports %v", got.Unheld)
}
if _, err := AssignRefusal(cat, "workstation", nil, []string{"mesh-wireguard", "mesh-host"}); err != nil {
t.Errorf("assigning the foundation was refused: %v", err)
}
}
func TestUnassigningTheLastHolderWhileDependentsRemainIsRefused(t *testing.T) {
sshd := withResources(mod("sshd", nil, nil, nil), res("service", "sshd"))
cat := shelf(append(coreThree(), sshd)...)
on := []string{"systemd", "pacman", "docker", "sshd"}
err := UnassignRefusal(cat, "workstation", on, []string{"systemd"})
if err == nil {
t.Fatal("the last service manager came off a node still running services")
}
for _, want := range []string{ServiceManagerSeat, "sshd", "pacman", "docker"} {
if !strings.Contains(err.Error(), want) {
t.Errorf("the refusal does not name %q:\n%v", want, err)
}
}
// A dependent comes off freely, and the holders with everything depending on them in one act.
if err := UnassignRefusal(cat, "workstation", on, []string{"sshd"}); err != nil {
t.Errorf("a dependent's unassignment was refused: %v", err)
}
if err := UnassignRefusal(cat, "workstation", on, on); err != nil {
t.Errorf("unassigning everything together was refused: %v", err)
}
}
+5 -5
View File
@@ -43,8 +43,8 @@ import (
var ofSeat = regexp.MustCompile(`\$\{seat:([a-z0-9][a-z0-9-]*):([0-9]+)\}`)
// seatInto replaces a resource's ${seat:…} placeholders with where this machine put each seat's
// holder — in a file's content, and in a value of a container's or a process's environment. The
// same places portInto fills, for the same reason: they are where a program reads a number from.
// holder — in a file's content, and in a value of a container's environment. The same two places
// portInto fills, for the same reason: they are where a process reads a number from.
func seatInto(resource map[string]any, module string, with Rendering) error {
switch fmt.Sprint(resource["type"]) {
case "file":
@@ -58,7 +58,7 @@ func seatInto(resource map[string]any, module string, with Rendering) error {
}
resource["content"] = filled
case "container", "process":
case "container":
env, ok := resource["env"].(map[string]any)
if !ok {
return nil
@@ -78,8 +78,8 @@ func seatInto(resource map[string]any, module string, with Rendering) error {
continue
}
value, err := seatsFilledInto(written,
fmt.Sprintf("%s's %s %s sets %s to something that",
module, resource["type"], resource["name"], key), with)
fmt.Sprintf("%s's container %s sets %s to something that",
module, resource["name"], key), with)
if err != nil {
return err
}
+9 -10
View File
@@ -101,7 +101,7 @@ func TestTheControlPlanesOwnAddressesFollowTheNodesPorts(t *testing.T) {
}
// The manifest itself names them now; withSeatPorts is a no-op on it, and this holds it so.
for _, r := range m.Resources {
if r["type"] != "process" {
if r["type"] != "container" {
continue
}
env, _ := r["env"].(map[string]any)
@@ -113,9 +113,8 @@ func TestTheControlPlanesOwnAddressesFollowTheNodesPorts(t *testing.T) {
}
m = withSeatPorts(m)
control, err := m.Resolve([]Built{{
Name: "controller", Kind: ArtifactBundle,
Reference: ArtifactStoreScheme + "mesh-controller/controller@sha256:" + strings.Repeat("c", 64),
Digest: "sha256:" + strings.Repeat("c", 64),
Name: "server", Kind: ArtifactImage,
Reference: ArtifactStoreScheme + "mesh-controller/server@sha256:" + strings.Repeat("c", 64),
}})
if err != nil {
t.Fatal(err)
@@ -136,9 +135,9 @@ func TestTheControlPlanesOwnAddressesFollowTheNodesPorts(t *testing.T) {
if err != nil {
t.Fatalf("the control plane does not compose: %v", err)
}
server := fileNamed(out, "mesh-controller.controller")
server := fileNamed(out, "mesh-controller.server")
if server == nil {
t.Fatalf("the control plane's process is not in the declaration: %v", out)
t.Fatalf("the control plane's container is not in the declaration: %v", out)
}
env, _ := server["env"].(map[string]any)
for key, want := range map[string]string{
@@ -152,8 +151,8 @@ func TestTheControlPlanesOwnAddressesFollowTheNodesPorts(t *testing.T) {
t.Errorf("the control plane is told %s=%v; the node put it on %s", key, env[key], want)
}
}
if got := server["source"]; got != "anchor.internal:5100/mesh-controller/controller@sha256:"+strings.Repeat("c", 64) {
t.Errorf("the control plane's own bundle is fetched from %v, not routed through the store", got)
if got := server["image"]; got != "anchor.internal:5100/mesh-controller/server@sha256:"+strings.Repeat("c", 64) {
t.Errorf("the control plane's own image is %v, not routed through the store", got)
}
// And on a mesh where the foundation is where genesis raised it, nothing is added.
@@ -161,7 +160,7 @@ func TestTheControlPlanesOwnAddressesFollowTheNodesPorts(t *testing.T) {
if err != nil {
t.Fatal(err)
}
env, _ = fileNamed(out, "mesh-controller.controller")["env"].(map[string]any)
env, _ = fileNamed(out, "mesh-controller.server")["env"].(map[string]any)
if env["MESH_STORE_INVENTORY_PORT"] != "" {
t.Errorf("with no settings, the control plane is told %v", env)
}
@@ -187,7 +186,7 @@ func withSeatPorts(m Manifest) Manifest {
out := m
out.Resources = nil
for _, r := range m.Resources {
if r["type"] != "container" && r["type"] != "process" {
if r["type"] != "container" {
out.Resources = append(out.Resources, r)
continue
}
+4 -76
View File
@@ -40,28 +40,16 @@ type Seat struct {
// Serves carries each verb in full — name, description, schema — because a role's tools are the
// mesh's to define and an agent's to call (novox/hq ADR 0132, design 33 §2).
Serves []Verb
// Receives is what other modules may contribute to the seat's holder, by kind (novox/hq ADR
// 0212): each kind is text in the tool's own grammar, placed by the holder with
// ${contribution:<seat>:<kind>}. Compiled, never stored: like the protocol, it is the mesh's
// definition of the role, and the store's rows carry no column for it.
Receives []Receivable
// Decision is the record that made it a seat.
Decision string
}
// Receivable is one kind of contribution a seat receives (novox/hq ADR 0212 §2): its name, and the
// comment prefix of the tool's grammar, with which the controller names each contributing module.
type Receivable struct {
Kind string
Comment string
}
// defaultSeats is the set the mesh ships with — the seed for the control plane's seat table and the
// fallback when it has none (novox/hq ADR 0122). It is the one place the closed set 0110 defines is
// written; the store's table is seeded from it and thereafter is the live, editable copy.
//
// In the order a person reads it: the mesh's own, then a node's.
var defaultSeats = append([]Seat{
var defaultSeats = []Seat{
// The control plane states what it did under the seat it holds (novox/hq ADR 0134): a role's
// events belong to the role, so they keep their address while the holder is replaced. No accepts,
// so no work queue is raised for it — only what its holder may say.
@@ -108,17 +96,8 @@ var defaultSeats = append([]Seat{
// A build says what it does as it does it (novox/hq ADR 0157): `started` when work is taken,
// `log.<build id>` for every line, `built` for the outcome. The log's tail token is the build's
// id, so a reader follows one build by subject alone.
// **Node-scoped, and every holder takes from one queue** (novox/hq ADR 0190): a build is asked of
// the role, and whichever machine holding the seat is idle pulls it. One holder per machine is
// what the scope says; sharing the work is what a seat's queue has always done.
{Name: "node-build-agent", Scope: ScopeNode,
Accepts: []string{"build"}, Emits: []string{"started", "built", "log.*"}, Decision: "novox/hq ADR 0190"},
// **Retired by ADR 0190, kept while a manifest still claims it.** The one build machine's seat.
// A claim to a seat the mesh no longer defines is refused, and the module holding this one is
// assigned on a live machine until build-agent replaces it — removing the row first would make
// that machine unresolvable in the meantime. Deleted once no registered manifest claims it.
{Name: "mesh-build-machine", Scope: ScopeMesh,
Accepts: []string{"build"}, Emits: []string{"started", "built", "log.*"}, Decision: "novox/hq ADR 0190"},
Accepts: []string{"build"}, Emits: []string{"started", "built", "log.*"}, Decision: "novox/hq ADR 0121"},
{Name: "node-dns-resolver", Scope: ScopeNode, Decision: "novox/hq ADR 0121"},
// The intrusion prevention's verbs (novox/hq ADR 0179): what a person asks a machine's ban list
// whatever keeps it — who is banned and why, ban one address, let one go. Every holder serves all
@@ -160,39 +139,8 @@ var defaultSeats = append([]Seat{
// system or user scope; the holder answers questions and operator acts about them, each verb
// taking the unit and an optional scope. The holder runs nothing of its own: its verbs are
// served by the node tools runtime (ADR 0175).
{Name: ServiceManagerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0177",
{Name: "node-service-manager", Scope: ScopeNode, Decision: "novox/hq ADR 0177",
Serves: serviceManagerVerbs()},
// The machine's package manager (novox/hq ADR 0207). A module declaring a `package` depends on
// it being held on its node, as one declaring a `service` depends on node-service-manager: the
// mesh's word for "something on this machine answers for installing", where a capability only
// says the software is there. No verbs yet — the seat says who answers, and what may be asked
// of it is decided when someone needs to ask.
{Name: PackageManagerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0207"},
// The machine's container runtime (novox/hq ADR 0166, seeded now by ADR 0207): a module
// declaring a `container` depends on it being held on its node. Its verbs, and the host creating
// containers through its holder, wait for ADR 0166's acceptance — seeded without them so the
// dependency has a seat to name and the runtime's module has one to claim.
{Name: ContainerRuntimeSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0166, ADR 0207"},
// The operator account's environment (novox/hq ADR 0203): one module per machine writes it, and
// every module contributes to it. No verbs — the seat says who places the environment's files,
// and their path is its protocol: a shell sources ~/.config/mesh/environment.sh without knowing
// which module wrote it.
{Name: EnvironmentSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0203"},
// The login shell (novox/hq ADR 0204, replacing the module-declared `login-shell` of ADR 0176):
// the mesh's, so a second shell module claims the seat rather than declaring a second one, and
// the seat exists whether or not zsh's definition is registered. `execute` is the contract any
// node may call; the holder places every module's shell code in its slots.
{Name: LoginShellSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0204",
Serves: loginShellVerbs()},
// A machine's power (novox/hq ADR 0211): its holder owns logind's power handling, places the
// code modules contribute for the power moments, and publishes the machine's power states as
// its events. Every machine has one — every machine boots and shuts down. No verbs yet.
{Name: PowerSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0211"},
// The machine's hotkeys (novox/hq ADR 0212): the daemon that sees the keys the window manager
// does not — a laptop's vendor keys — run by one module per machine, which owns its
// configuration. Every other module with keys contributes trigger lines to it.
{Name: HotkeysSeat, Scope: ScopeNode, Decision: "novox/hq ADR 0212",
Receives: []Receivable{{Kind: "trigger", Comment: "#"}}},
// Deferred (novox/hq ADR 0121): renaming to mesh-private-network is a scope + server/client
// model change, not a rename, so it stays until that is built.
{Name: "the-private-network", Scope: ScopeNode, Decision: "novox/hq ADR 0110"},
@@ -204,9 +152,7 @@ var defaultSeats = append([]Seat{
// rather than a condition in the resolver's module, so a machine running two managers is
// refused at assignment instead of found by the resolver being rewritten (novox/hq ADR 0117).
{Name: "node-uplink", Scope: ScopeNode, Decision: "novox/hq ADR 0117"},
},
// The graphical session's roles (novox/hq ADR 0208), last because they are a workstation's.
graphicalSessionSeats()...)
}
// A system seat name is the control plane's namespace: `mesh-*` for a mesh-wide role, `node-*` for
// a per-node one (novox/hq ADR 0121). A claim to a system name the mesh does not define is refused;
@@ -255,10 +201,6 @@ func UseSeats(s []Seat) {
row.Accepts, row.Emits, row.Serves = d.Accepts, d.Emits, d.Serves
}
}
// What a seat receives is never stored (novox/hq ADR 0212), so it is always the compiled one.
if d, known := byName[row.Name]; known {
row.Receives = d.Receives
}
merged = append(merged, row)
}
seats = merged
@@ -505,17 +447,3 @@ func serviceManagerVerbs() []Verb {
Input: scoped(map[string]string{"unit": unit["unit"], "lines": "how many lines from the end (default 100)"}, []string{"unit"})},
}
}
// loginShellVerbs is the contract every holder of node-login-shell serves (novox/hq ADR 0176, ADR
// 0204): one command, run the way the operator's own terminal would run it, bounded below the
// runtime's thirty-second call limit so a hung command answers rather than times the caller out.
func loginShellVerbs() []Verb {
return []Verb{
{Name: "execute", Description: "Run one command on this machine as the operator account, in a " +
"non-interactive login shell in its home; answers with what it printed and how it exited.",
Input: schema(map[string]string{
"command": "the command line, as you would type it",
"timeout_seconds": "give up after this long, at most 25 (default 20)",
}, []string{"command"})},
}
}
-20
View File
@@ -25,10 +25,6 @@ import (
// and nothing to keep in step when a mesh seat is added.
const meshSeatPrefix = "mesh-"
// retiredLoginShell is the one name outside the prefix a module may not declare: the login shell's,
// from when a module declared it (novox/hq ADR 0176), before it became the mesh's (ADR 0204).
const retiredLoginShell = "login-shell"
// A SeatDeclaration is a role a module offers on the bus: what may be sent to it, what it says,
// and what it answers. A caller declares that it uses the *seat*, never the module, so the
// implementation can be replaced under it.
@@ -92,15 +88,6 @@ func declaredSeatProblems(m Manifest) []string {
"seats (novox/hq ADR 0118)", m.Module, s.Name, meshSeatPrefix+"*"))
continue
}
if s.Name == retiredLoginShell {
// The name ADR 0176 gave the login shell when the zsh module declared it. The seat is
// the mesh's now, so a module declaring the old name would be a second login shell
// beside it, with a protocol of its own (novox/hq ADR 0204).
problems = append(problems, fmt.Sprintf(
"%s declares a seat named %q; the login shell is the mesh's own seat %s, which a shell "+
"module claims and none declares (novox/hq ADR 0204)", m.Module, s.Name, LoginShellSeat))
continue
}
if seen[s.Name] {
problems = append(problems, fmt.Sprintf(
"%s declares the seat %q twice", m.Module, s.Name))
@@ -228,13 +215,6 @@ func CatalogueProblems(shelf Shelf) []string {
}
}
}
// A read of a module's state that module does not keep (novox/hq ADR 0201) — said only where the
// owner is on the shelf, as a consumer may be installed before its emitter.
var manifests []Manifest
for _, module := range shelfOrder(shelf) {
manifests = append(manifests, shelf[module])
}
problems = append(problems, StateReadsNothingDeclares(manifests)...)
sort.Strings(problems)
return problems
}

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