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Merge pull request 'Require the service manager's reset-failed, wanted-by and unlink-dangling verbs (issue 332)' (#248) from fix/332-require-service-manager-verbs into main

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This commit was merged in pull request #248.
This commit is contained in:
mesh-admin
2026-10-12 10:53:20 +00:00
parent d881f4764d 61d00a234a
commit fafa3fd9ef
4 changed files with 47 additions and 30 deletions
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cmd/mesh-controller/seat_dependencies_test.go
+2 -1
View File
@@ -15,7 +15,8 @@ import (
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"}}},
Serves: []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal",
"reset-failed", "wanted-by", "unlink-dangling"}}},
Resources: []map[string]any{{"id": "systemd", "type": "package", "package": "systemd"}}}
}
internal/catalogue/operators_machine_test.go
+34 -19
View File
@@ -68,9 +68,10 @@ func TestFailedIsAnOptionalVerbOfTheServiceManager(t *testing.T) {
holder := func(serves ...string) Manifest {
return Manifest{Module: "systemd", Version: "1", Claims: []Claim{{Name: ServiceManagerSeat, Scope: ScopeNode, Serves: serves}}}
}
eight := []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal"}
eight := []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal",
"reset-failed", "wanted-by", "unlink-dangling"}
if err := CanHold(holder(eight...), seat); err != nil {
t.Fatalf("today's holder, without failed, is refused: %v", err)
t.Fatalf("a holder without failed is refused: %v", err)
}
if err := CanHold(holder(append(eight, "failed")...), seat); err != nil {
t.Fatalf("a holder serving failed is refused: %v", err)
@@ -81,7 +82,7 @@ func TestFailedIsAnOptionalVerbOfTheServiceManager(t *testing.T) {
if err := CanHold(holder(eight[1:]...), seat); err == nil || !strings.Contains(err.Error(), "does not serve units") {
t.Fatalf("a holder missing a required verb was accepted: %v", err)
}
optional := map[string]bool{"failed": true, "reset-failed": true, "wanted-by": true, "unlink-dangling": true}
optional := map[string]bool{"failed": true}
for _, v := range seat.Serves {
if v.Optional != optional[v.Name] {
t.Errorf("%s optional: %v", v.Name, v.Optional)
@@ -89,26 +90,35 @@ func TestFailedIsAnOptionalVerbOfTheServiceManager(t *testing.T) {
}
}
// **`reset-failed` and `wanted-by` join the seat optional** (novox/hq issue 332, ADR 0246 step 1): the
// holder running today, serving the nine verbs, still holds the seat; a holder serving all eleven is not
// refused; each replaces the shell command it names; and read back from the store's row they stay optional.
func TestResetFailedAndWantedByAreOptionalVerbsOfTheServiceManager(t *testing.T) {
// **`reset-failed`, `wanted-by` and `unlink-dangling` are required** (novox/hq issue 332, ADR 0246 step 3):
// every holder serves them, so a holder serving only the nine verbs before them is refused by the verb it
// lacks; a holder serving all twelve holds the seat; each replaces the shell command it names; and read
// back from the store's row they stay required.
func TestResetFailedWantedByAndUnlinkDanglingAreRequiredVerbsOfTheServiceManager(t *testing.T) {
defer UseSeats(DefaultSeats())
nine := []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal", "failed"}
all := append(slices.Clone(nine), "reset-failed", "wanted-by", "unlink-dangling")
holder := func(serves ...string) Manifest {
return Manifest{Module: "systemd", Version: "1", Claims: []Claim{{Name: ServiceManagerSeat, Scope: ScopeNode, Serves: serves}}}
}
refusedWithout := func(seat Seat) {
t.Helper()
for _, verb := range []string{"reset-failed", "wanted-by", "unlink-dangling"} {
serves := slices.DeleteFunc(slices.Clone(all), func(v string) bool { return v == verb })
if err := CanHold(holder(serves...), seat); err == nil || !strings.Contains(err.Error(), "does not serve "+verb) {
t.Errorf("a holder not serving %s holds the seat: %v", verb, err)
}
}
}
seat, _ := SeatNamed(ServiceManagerSeat)
if err := CanHold(holder(nine...), seat); err != nil {
t.Fatalf("today's holder, without the two verbs, is refused: %v", err)
if err := CanHold(holder(nine...), seat); err == nil {
t.Fatal("a holder serving only the nine verbs before issue 332 holds the seat")
}
if err := CanHold(holder(append(nine, "reset-failed", "wanted-by")...), seat); err != nil {
t.Fatalf("a holder serving both is refused: %v", err)
refusedWithout(seat)
if err := CanHold(holder(all...), seat); err != nil {
t.Fatalf("a holder serving all twelve is refused: %v", err)
}
if err := CanHold(holder(append(nine, "reset-failed", "wanted-by", "unlink-dangling")...), seat); err != nil {
t.Fatalf("a holder serving unlink-dangling too is refused: %v", err)
}
if err := CanHold(holder(append(nine, "why-started")...), seat); err == nil || !strings.Contains(err.Error(), "does not promise") {
if err := CanHold(holder(append(slices.Clone(all), "why-started")...), seat); err == nil || !strings.Contains(err.Error(), "does not promise") {
t.Fatalf("a verb the seat does not promise was accepted: %v", err)
}
replaces := map[string]string{"reset-failed": "systemctl reset-failed", "wanted-by": "systemctl list-dependencies --reverse",
@@ -118,6 +128,9 @@ func TestResetFailedAndWantedByAreOptionalVerbsOfTheServiceManager(t *testing.T)
if !ok {
continue
}
if v.Optional {
t.Errorf("%s is still optional", v.Name)
}
if !slices.Contains(v.Replaces, want) {
t.Errorf("%s does not say it replaces %q: %v", v.Name, want, v.Replaces)
}
@@ -148,8 +161,9 @@ func TestResetFailedAndWantedByAreOptionalVerbsOfTheServiceManager(t *testing.T)
}
UseSeats(rows)
seat, _ = SeatNamed(ServiceManagerSeat)
if err := CanHold(holder(nine...), seat); err != nil {
t.Fatalf("read back from the row, the two verbs are required: %v", err)
refusedWithout(seat)
if err := CanHold(holder(all...), seat); err != nil {
t.Fatalf("read back from the row, a holder serving all twelve is refused: %v", err)
}
}
@@ -169,8 +183,9 @@ func TestAnOptionalVerbStaysOptionalInASetReadFromTheStore(t *testing.T) {
UseSeats(rows)
seat, _ := SeatNamed(ServiceManagerSeat)
holder := Manifest{Module: "systemd", Version: "1", Claims: []Claim{{Name: ServiceManagerSeat, Scope: ScopeNode,
Serves: []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal"}}}}
Serves: []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal",
"reset-failed", "wanted-by", "unlink-dangling"}}}}
if err := CanHold(holder, seat); err != nil {
t.Fatalf("a set read from rows refuses today's holder: %v", err)
t.Fatalf("a set read from rows refuses a holder without the optional failed: %v", err)
}
}
internal/catalogue/seats.go
+7 -7
View File
@@ -678,13 +678,13 @@ func serviceManagerVerbs() []Verb {
Replaces: []string{"systemctl --failed"}},
// **Clearing a failed record, and finding what starts a unit** (novox/hq issue 332): a unit whose
// file is gone stays failed in its manager until the record is reset, and what keeps asking for it
// is a dependency or an enable link no verb could show. Both optional while their holders catch up
// (ADR 0246 step 1); a later change requires them.
{Name: "reset-failed", Optional: true, Description: "Clear one unit's failed record in its manager — " +
// is a dependency or an enable link no verb could show. Required since every holder serves them
// (ADR 0246 step 3).
{Name: "reset-failed", Description: "Clear one unit's failed record in its manager — " +
"its failed state and its start-limit count — and answer its state after. It removes no file and " +
"starts nothing.",
Input: scoped(unit, []string{"unit"}), Replaces: []string{"systemctl reset-failed"}},
{Name: "wanted-by", Optional: true, Description: "What wants, requires or triggers one unit, read-only: the " +
{Name: "wanted-by", Description: "What wants, requires or triggers one unit, read-only: the " +
"manager's reverse dependencies (WantedBy, RequiredBy, UpheldBy, BoundBy, TriggeredBy and the rest) and " +
"every enable link naming it in the scope's configuration directories (*.wants, *.requires, *.upholds), " +
"each with where it points and whether it dangles — the account's own directory included in user scope.",
@@ -692,9 +692,9 @@ func serviceManagerVerbs() []Verb {
Replaces: []string{"systemctl list-dependencies --reverse", "systemctl show -p WantedBy",
"ls ~/.config/systemd/user/*.wants"}},
// **A dangling enable link removed on the person's word** (novox/hq issue 332): `systemctl disable`
// leaves a link whose unit file is gone, so the manager keeps asking for the unit. Optional until its
// holders serve it (ADR 0246 step 1).
{Name: "unlink-dangling", Optional: true, Description: "Remove the dangling enable links named for one " +
// leaves a link whose unit file is gone, so the manager keeps asking for the unit. Required since
// every holder serves it (ADR 0246 step 3).
{Name: "unlink-dangling", Description: "Remove the dangling enable links named for one " +
"unit — links in a *.wants, *.requires or *.upholds directory of the account's or the machine's own " +
"configuration whose target does not exist, which `disable` leaves once the unit's file is gone — on " +
"the person's word: `why` is required. Each is recorded (its path, its target, the reason) before it is " +
internal/inventory/seats_test.go
+4 -3
View File
@@ -202,14 +202,15 @@ func TestASeatsVerbGainsTheArgumentsTheBinaryNames(t *testing.T) {
t.Fatal("failed was not added to the row")
}
// The optional mark is not stored; the working set read from the rows takes it from the compiled seat,
// so today's holder, which does not serve failed, still holds the seat.
// so a holder that does not serve the optional failed still holds the seat.
catalogue.UseSeats(seats)
defer catalogue.UseSeats(catalogue.DefaultSeats())
live, _ := catalogue.SeatNamed(catalogue.ServiceManagerSeat)
holder := 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"}}}}
Scope: catalogue.ScopeNode, Serves: []string{"units", "status", "start", "stop", "restart", "enable", "disable", "journal",
"reset-failed", "wanted-by", "unlink-dangling"}}}}
if err := catalogue.CanHold(holder, live); err != nil {
t.Fatalf("the seat read from the store refuses today's holder: %v", err)
t.Fatalf("the seat read from the store refuses a holder without the optional failed: %v", err)
}
// Seeding again changes nothing more.
before := verbs["journal"]