e2e: assigned plex + redis prove the module runtime (ADR 0052)

build-module-runtime.sh generalises the audit-logger runtime image to any module (mesh-tools + sdk + the module's dist, entrypoints for tools/events/provisioner). Two scenarios and two tests: assigned-plex proves a tools+events module serves its tools over a mesh-issued scoped account; assigned-redis proves a provider's runtime serves tools AND runs its provisioner in the same broker-bound process, provisioning a grant and emitting its lifecycle event. Both green. Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF
2026-09-04 22:29:53 +02:00
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+/**
+ * The mesh assigns plex's tool runtime, and it serves plex's tools over an account the mesh
+ * delivered — the whole of novox/hq ADR 0052.
+ *
+ * assigned-audit proves an assigned *consumer* (ADR 0048). This proves an assigned module that runs
+ * its OWN code as its OWN process under its OWN scoped account and *serves tools*: the module is
+ * assigned through the control plane, the mesh issues it an account scoped to serve.plex.* (and its
+ * events), seals it to the machine, and the host runs it as a container that binds amqps with that
+ * account. A caller then invokes plex.plex_reachable over the mesh and gets the tool's own answer —
+ * proof the invocation routed to the assigned runtime, ran plex's real code, and replied, all under
+ * the scoped account and never the broker's own.
+ *
+ * It needs the host binary, the substrate bundle, and the runtime image stocked by the scenario:
+ *
+ *   MESH_LAB_HOST_BINARY=.../mesh-host
+ *   MESH_LAB_BUNDLE=.../examples/substrate-first-node.lock
+ *   scripts/build-module-runtime.sh plex builds mesh-runtime-plex:development into the local daemon,
+ *   which scenarios/plex-node.yml stocks — so no MESH_LAB_RUNTIME here; the host pulls it.
+ */
+
+import { test, before, after } from "node:test";
+import assert from "node:assert/strict";
+import { existsSync, readFileSync } from "node:fs";
+import { loadScenario } from "../../src/declaration/parse.ts";
+import { raise } from "../../src/lifecycle/raise.ts";
+import { destroy, exec } from "../../src/lifecycle/operate.ts";
+import { hostBinaryPath, HOST_PATH } from "../../src/lifecycle/place.ts";
+import { labIsUsable, destroyAll } from "./harness.ts";
+
+const capability = await labIsUsable();
+const binary = hostBinaryPath();
+const bundle = process.env["MESH_LAB_BUNDLE"] ?? "";
+
+const skip = !capability.usable
+  ? `lab not usable: ${capability.why}`
+  : !binary || !existsSync(binary)
+    ? "MESH_LAB_HOST_BINARY is not set to a built mesh-host"
+    : !bundle || !existsSync(bundle)
+      ? "MESH_LAB_BUNDLE is not set to a substrate bundle (mesh-host examples/)"
+      : false;
+
+const SCENARIO = "plex-node";
+const MACHINE = "anchor";
+
+let instanceId = "";
+/** What the scenario's registry serves, by digest. */
+let stocked: string[] = [];
+
+function quote(s: string): string {
+  return `'${s.replaceAll("'", `'\\''`)}'`;
+}
+
+async function on(command: string, timeoutMs?: number): Promise<{ out: string; ok: boolean }> {
+  const { stdout } = await exec(instanceId, MACHINE, [
+    "sh", "-c", `exec 2>&1\n${command}\necho "__exit=$?"`,
+  ], timeoutMs);
+  const marker = stdout.lastIndexOf("__exit=");
+  if (marker < 0) return { out: stdout, ok: false };
+  return { out: stdout.slice(0, marker), ok: stdout.slice(marker + 7).trim() === "0" };
+}
+
+async function must(command: string, timeoutMs?: number): Promise<string> {
+  const { out, ok } = await on(command, timeoutMs);
+  if (!ok) throw new Error(`${MACHINE}: ${command}\n${out}`);
+  return out;
+}
+
+/** The control plane, a container on the node. */
+async function mesh(command: string, timeoutMs?: number): Promise<string> {
+  return must(`docker exec mesh-control /mesh-control ${command}`, timeoutMs);
+}
+
+/** The pinned reference for one of the scenario's images, by repository. */
+function pinned(repository: string): string {
+  const found = stocked.find((r) => r.slice(r.indexOf("/") + 1, r.indexOf("@")) === repository);
+  assert.ok(found, `the scenario stocks no ${repository}; it serves ${stocked.join(", ")}`);
+  return found;
+}
+
+/** The substrate bundle, its image references pointed at this scenario's own registry. */
+function bundleFor(images: string[]): string {
+  let text = readFileSync(bundle, "utf8");
+  for (const ref of images) {
+    const repository = ref.slice(ref.indexOf("/") + 1, ref.indexOf("@"));
+    const escaped = repository.replaceAll("/", "\\/").replaceAll(".", "\\.");
+    text = text.replaceAll(new RegExp(`[A-Za-z0-9_.:-]+\\/${escaped}@sha256:[0-9a-f]+`, "g"), ref);
+  }
+  return text;
+}
+
+function tokenFrom(said: string): string {
+  const found = said.split("\n").map((l) => l.trim()).find((l) => l.length > 100 && !l.includes(" "));
+  assert.ok(found, `no token in:\n${said}`);
+  return found;
+}
+
+async function settled(withinMs = 480_000): Promise<void> {
+  const until = Date.now() + withinMs;
+  let last = "";
+  while (Date.now() < until) {
+    const asked = await on(`docker exec mesh-control /mesh-control status --json`);
+    if (asked.ok) {
+      try {
+        const state = JSON.parse(asked.out) as {
+          wrong: { node: string; outcome: string }[];
+          waiting: { node: string }[];
+          reported: { node: string; outcome: string; current: boolean }[];
+        };
+        const bad = state.wrong.find((w) => w.node === MACHINE);
+        if (bad) throw new Error(`${MACHINE} did not apply what it was sent: ${bad.outcome}\n${asked.out}`);
+        const word = state.reported.find((r) => r.node === MACHINE);
+        if (!state.waiting.some((w) => w.node === MACHINE) && word?.outcome === "applied" && word.current) return;
+        last = asked.out;
+      } catch (err) {
+        if (err instanceof Error && err.message.includes("did not apply")) throw err;
+        last = asked.out;
+      }
+    }
+    await new Promise((r) => setTimeout(r, 5000));
+  }
+  throw new Error(`${MACHINE} never caught up within ${Math.round(withinMs / 1000)}s. Last:\n${last}`);
+}
+
+before(async () => {
+  if (skip) return;
+
+  const raised = await raise(loadScenario(`scenarios/${SCENARIO}.yml`), {
+    onProgress: (m) => console.log(`raise: ${m}`),
+  });
+  instanceId = raised.instanceId;
+  stocked = raised.images;
+
+  // Raise the substrate — store, broker, control — from the bundle.
+  await must(`cat > /tmp/substrate.lock <<'MESHBUNDLE'\n${bundleFor(raised.images)}\nMESHBUNDLE`);
+  await must(`${HOST_PATH} apply /tmp/substrate.lock`, 600_000);
+  const up = await must(`docker ps --format '{{.Names}}'`);
+  for (const c of ["mesh-store", "mesh-broker", "mesh-control"]) {
+    assert.match(up, new RegExp(c), `the substrate did not raise ${c}:\n${up}`);
+  }
+
+  // The node joins its own mesh, so it is a node the mesh can assign to, and start the host so it
+  // applies what it is pushed.
+  await mesh(`node add ${MACHINE}`);
+  const token = tokenFrom(await mesh(`token issue --node ${MACHINE}`));
+  await must(`${HOST_PATH} enrol --token ${quote(token)}`);
+  await must(`nohup ${HOST_PATH} run > /var/log/mesh-host.log 2>&1 & sleep 3`);
+}, { timeout: 1_800_000 });
+
+after(async () => {
+  if (instanceId) await destroy(instanceId);
+  await destroyAll(`${SCENARIO}-`);
+}, { timeout: 600_000 });
+
+test("the mesh assigns plex's runtime, and it serves plex's tools over the account the mesh delivered", {
+  skip, timeout: 900_000,
+}, async () => {
+  // A minimal plex manifest: its tools/events runtime (no Plex server or media mounts in the lab),
+  // its emits and consumes so the account is scoped to those too, and a token in the environment so
+  // the tools register without a running Plex to detect one from. The runtime image is the digest
+  // this scenario's registry serves.
+  const manifest = JSON.stringify({
+    module: "plex",
+    version: "1",
+    emits: [
+      "module.plex.playback.started",
+      "module.plex.playback.stopped",
+      "module.plex.item.added",
+    ],
+    consumes: ["module.*.download.completed"],
+    "own-secrets": { broker: "/var/lib/mesh/plex/broker" },
+    resources: [
+      { id: "mesh-state", type: "directory", path: "/var/lib/mesh/plex", mode: "0700" },
+      {
+        id: "runtime", type: "container", name: "mesh-plex", image: pinned("mesh-runtime-plex"),
+        network: "host",
+        volumes: ["/var/lib/mesh/plex/broker:/run/secrets/broker:ro"],
+        env: {
+          MESH_BROKER_FILE: "/run/secrets/broker",
+          MESH_PLEX_URL: "http://127.0.0.1:32400",
+          MESH_PLEX_TOKEN: "lab-token",
+        },
+      },
+    ],
+  });
+  await must(`printf %s ${quote(manifest)} > /tmp/plex.json && docker cp /tmp/plex.json mesh-control:/plex.json`);
+  await mesh("module add /plex.json");
+
+  // The mesh issues plex's scoped account and seals it to this machine, then assigns and pushes it.
+  const issued = await mesh(`module issue plex --node ${MACHINE}`);
+  assert.match(issued, /scoped to what it emits and consumes/, issued);
+  await mesh(`assign ${MACHINE} plex`);
+  await mesh(`push ${MACHINE}`);
+  await settled();
+
+  // The runtime container the mesh started is running.
+  const running = await must(`docker ps --format '{{.Names}}'`);
+  assert.match(running, /mesh-plex/,
+    `plex's runtime was assigned and is not running:\n${(await on(`tail -30 /var/log/mesh-host.log`)).out}`);
+
+  // The credential on disk is the scoped account over amqps, sealed — not the broker's own.
+  const credential = await must(`cat /var/lib/mesh/plex/broker`);
+  assert.match(credential, /"url":"amqps:\/\/anchor-plex:/, `not the scoped account:\n${credential}`);
+  assert.doesNotMatch(credential, /guest:guest/, "plex's runtime holds the broker's own account");
+  assert.match(credential, /"fingerprint":"(sha256:)?[0-9a-f]{64}"/, "no fingerprint to pin the broker");
+
+  // The runtime registered and is serving its tools — the queue it declared is on the broker,
+  // named for the scope its account is granted (serve.plex.*).
+  let served = "";
+  const untilServing = Date.now() + 60_000;
+  while (Date.now() < untilServing) {
+    served = await must(`docker exec mesh-broker lavinmqctl list_queues name 2>&1 || true`);
+    if (/serve\.plex\.plex_reachable/.test(served)) break;
+    await new Promise((r) => setTimeout(r, 3000));
+  }
+  assert.match(served, /serve\.plex\.plex_reachable/,
+    `plex's runtime never bound its serve queue:\n${(await on(`docker logs mesh-plex 2>&1 | tail -20`)).out}\n---\n${served}`);
+
+  // A caller invokes plex.plex_reachable over the mesh, from the bootstrap account (a caller, like
+  // mesh-control's command API — plex's own account serves, it does not call). The reply is the
+  // tool's own answer: it ran in the assigned runtime and reported the Plex server is unreachable
+  // (there is none in the lab). A reply at all — not a timeout — is the proof the invocation routed
+  // to the assigned runtime and ran plex's real code under its scoped account.
+  const invoked = await must(
+    `docker run --rm --network host -e MESH_BROKER_URL=amqp://guest:guest@127.0.0.1:5672/ ` +
+      `${pinned("mesh-runtime-plex")} invoke plex plex_reachable`,
+    120_000,
+  );
+  const line = invoked.split("\n").map((l) => l.trim()).filter(Boolean).pop() ?? "";
+  const result = JSON.parse(line) as { reachable: boolean; url: string; error?: string };
+  assert.equal(result.reachable, false, `expected the lab's Plex to be unreachable:\n${invoked}`);
+  assert.match(result.url, /127\.0\.0\.1:32400/, `the tool ran but not against the configured server:\n${invoked}`);
+
+  // And the account the mesh made for it is a real one on the broker, scoped — proven above by the
+  // serve queue authenticating and the invocation round-tripping under it.
+  const users = await must(`docker exec mesh-broker lavinmqctl list_users 2>&1`);
+  assert.match(users, /anchor-plex/, `the scoped account is not on the broker:\n${users}`);
+});