jschoubben
121367319d
One name per thing, per the HQ glossary: the module/container/image/binary/repo becomes mesh-controller, the seat the-controller, and the store+broker pair the foundation (embedded base bundles, default template and example lock renamed with their go:embed directives). No behaviour change — a pure vocabulary rename. Claude-Session: https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx
70 lines
2.4 KiB
Go
70 lines
2.4 KiB
Go
// Package examples checks the bundles shipped in this directory.
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//
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// **Nothing checked them before.** `foundation-first-node.lock` is what a machine becomes when
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// there is no mesh to ask — the one declaration applied with nothing to verify it against — and
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// it was edited by hand and read by nobody but a running host.
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package examples
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import (
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"os"
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"sort"
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"strings"
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"testing"
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"github.com/novox/mesh-host/internal/declaration"
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)
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func bundle(t *testing.T) *declaration.Declaration {
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t.Helper()
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raw, err := os.ReadFile("foundation-first-node.lock")
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if err != nil {
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t.Fatal(err)
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}
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d, err := declaration.ParseFileTrusted(raw)
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if err != nil {
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t.Fatalf("the bundle a first node applies does not parse: %v", err)
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}
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return d
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}
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// Defends novox/hq ADR 0028: the foundation supplies the control plane and nothing else.
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//
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// The object store was foundation for months on the strength of "it cannot grant itself a bucket",
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// which answers half the test. The control plane never needed one, and nothing noticed because
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// nothing counted what the bundle holds.
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func TestTheBundleCarriesTheFoundationAndTheControlPlaneAndNothingElse(t *testing.T) {
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var images []string
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for _, r := range bundle(t).Resources {
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c, ok := r.(*declaration.Container)
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if !ok {
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continue
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}
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// The registry the images come from is the lab's, and is not what this asserts.
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name := c.Image
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if i := strings.LastIndex(name, "/"); i >= 0 {
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name = name[i+1:]
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}
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images = append(images, strings.SplitN(name, "@", 2)[0])
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}
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sort.Strings(images)
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want := []string{"lavinmq", "mesh-controller", "postgres"}
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if strings.Join(images, ",") != strings.Join(want, ",") {
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t.Fatalf("the bundle carries %v; expected exactly %v.\n\n"+
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"Adding one is a change to what every first node becomes, and to ADR 0006's "+
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"membership — take it deliberately, not by editing a lock file.", images, want)
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}
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}
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// The control plane is in the bundle, and the design overlooked it once by reasoning about
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// foundation services rather than counting containers (novox/hq 03-DESIGN/01-to-be/07).
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func TestTheControlPlaneIsCarriedToo(t *testing.T) {
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for _, r := range bundle(t).Resources {
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if c, ok := r.(*declaration.Container); ok && strings.Contains(c.Image, "mesh-controller") {
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return
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}
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}
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t.Fatal("nothing in the bundle starts the control plane, so the machine would raise a " +
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"foundation and stop")
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}
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