jschoubben
5d6e8fbe7a
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
256 lines
12 KiB
TypeScript
256 lines
12 KiB
TypeScript
/**
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* The whole grant, mesh-driven end to end — novox/hq ADR 0053 with nothing hand-written.
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*
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* The earlier provider tests put the contributions file and the password on disk by hand, standing
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* in for the control plane. This one does not: a provider (redis) and a consumer (a module that
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* `requires` redis-cache) are both assigned, and the *mesh* mints the password, seals a copy to each
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* end, writes redis its contributions file and the consumer its bound file, and the host unseals
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* each side's secret. redis's provisioner — reading only what the mesh wrote — creates the ACL user
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* under the login the mesh derived, with the password the mesh minted. The proof is the consumer's
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* end: the credential the mesh delivered *it* authenticates against the login redis created for it.
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* Mint on one side and create on the other agreeing, with no shared key and nothing placed by the
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* test, is the entire provider/consumer contract working as one thing.
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*
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* MESH_LAB_HOST_BINARY=.../mesh-host MESH_LAB_BUNDLE=.../examples/foundation-first-node.lock
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* scripts/build-module-runtime.sh redis builds mesh-runtime-redis:development, which
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* scenarios/redis-node.yml stocks.
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*/
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import { test, before, after } from "node:test";
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import assert from "node:assert/strict";
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import { existsSync, readFileSync } from "node:fs";
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import { loadScenario } from "../../src/declaration/parse.ts";
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import { raise } from "../../src/lifecycle/raise.ts";
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import { destroy, exec } from "../../src/lifecycle/operate.ts";
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import { hostBinaryPath, HOST_PATH } from "../../src/lifecycle/place.ts";
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import { labIsUsable, destroyAll, foundationBundle, onTheMachine } from "./harness.ts";
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import type { HeldImage } from "../../src/pinning.ts";
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const capability = await labIsUsable();
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const binary = hostBinaryPath();
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const bundle = process.env["MESH_LAB_BUNDLE"] ?? "";
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const skip = !capability.usable
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? `lab not usable: ${capability.why}`
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: !binary || !existsSync(binary)
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? "MESH_LAB_HOST_BINARY is not set to a built mesh-host"
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: !bundle || !existsSync(bundle)
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? "MESH_LAB_BUNDLE is not set to a foundation bundle (mesh-host examples/)"
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: false;
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const SCENARIO = "redis-node";
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const MACHINE = "anchor";
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let instanceId = "";
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let held: HeldImage[] = [];
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function quote(s: string): string {
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return `'${s.replaceAll("'", `'\\''`)}'`;
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}
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async function on(command: string, timeoutMs?: number): Promise<{ out: string; ok: boolean }> {
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const { stdout } = await exec(instanceId, MACHINE, [
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"sh", "-c", `exec 2>&1\n${command}\necho "__exit=$?"`,
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], timeoutMs);
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const marker = stdout.lastIndexOf("__exit=");
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if (marker < 0) return { out: stdout, ok: false };
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return { out: stdout.slice(0, marker), ok: stdout.slice(marker + 7).trim() === "0" };
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}
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async function must(command: string, timeoutMs?: number): Promise<string> {
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const { out, ok } = await on(command, timeoutMs);
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if (!ok) throw new Error(`${MACHINE}: ${command}\n${out}`);
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return out;
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}
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async function mesh(command: string, timeoutMs?: number): Promise<string> {
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return must(`docker exec mesh-controller /mesh-controller ${command}`, timeoutMs);
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}
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/** What a manifest's image reference becomes on the machine — ours by ID, everything else as written. */
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function pinned(reference: string): string {
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return onTheMachine(reference, held);
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}
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function bundleFor(images: HeldImage[]): string {
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return foundationBundle(bundle, images);
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}
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function tokenFrom(said: string): string {
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const found = said.split("\n").map((l) => l.trim()).find((l) => l.length > 100 && !l.includes(" "));
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assert.ok(found, `no token in:\n${said}`);
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return found;
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}
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async function settled(withinMs = 480_000): Promise<void> {
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const until = Date.now() + withinMs;
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let last = "";
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while (Date.now() < until) {
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const asked = await on(`docker exec mesh-controller /mesh-controller status --json`);
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if (asked.ok) {
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try {
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const state = JSON.parse(asked.out) as {
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wrong: { node: string; outcome: string }[];
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waiting: { node: string }[];
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reported: { node: string; outcome: string; current: boolean }[];
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};
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const bad = state.wrong.find((w) => w.node === MACHINE);
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if (bad) throw new Error(`${MACHINE} did not apply what it was sent: ${bad.outcome}\n${asked.out}`);
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const word = state.reported.find((r) => r.node === MACHINE);
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if (!state.waiting.some((w) => w.node === MACHINE) && word?.outcome === "applied" && word.current) return;
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last = asked.out;
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} catch (err) {
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if (err instanceof Error && err.message.includes("did not apply")) throw err;
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last = asked.out;
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}
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}
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await new Promise((r) => setTimeout(r, 5000));
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}
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throw new Error(`${MACHINE} never caught up within ${Math.round(withinMs / 1000)}s. Last:\n${last}`);
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}
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before(async () => {
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if (skip) return;
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const raised = await raise(loadScenario(`scenarios/${SCENARIO}.yml`), {
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onProgress: (m) => console.log(`raise: ${m}`),
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});
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instanceId = raised.instanceId;
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held = raised.images;
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await must(`cat > /tmp/foundation.lock <<'MESHBUNDLE'\n${bundleFor(raised.images)}\nMESHBUNDLE`);
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await must(`${HOST_PATH} apply /tmp/foundation.lock`, 600_000);
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const up = await must(`docker ps --format '{{.Names}}'`);
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for (const c of ["mesh-store", "mesh-broker", "mesh-controller"]) {
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assert.match(up, new RegExp(c), `the foundation did not raise ${c}:\n${up}`);
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}
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await mesh(`node add ${MACHINE}`);
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const token = tokenFrom(await mesh(`token issue --node ${MACHINE}`));
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await must(`${HOST_PATH} enrol --token ${quote(token)}`);
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await must(`nohup ${HOST_PATH} run > /var/log/mesh-host.log 2>&1 & sleep 3`);
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}, { timeout: 1_800_000 });
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after(async () => {
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if (instanceId) await destroy(instanceId);
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await destroyAll(`${SCENARIO}-`);
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}, { timeout: 600_000 });
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test("the mesh grants a consumer redis's cache, and the credential it delivers authenticates", {
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skip, timeout: 900_000,
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}, async () => {
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// The PROVIDER: redis in its committed shape — server and a broker-bound runtime on the private
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// redis network, the runtime running the provisioner.
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const redisManifest = JSON.stringify({
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module: "redis",
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version: "1",
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provides: [{ name: "redis-cache", scope: "mesh" }],
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serves: { "redis-cache": {} },
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emits: ["module.redis.cache.provisioned", "module.redis.cache.deprovisioned"],
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consumes: ["module.redis.cache.provisioned", "module.redis.cache.deprovisioned"],
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receives: { "redis-cache": "/var/lib/redis-module/grants/mesh.json" },
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grants: { "redis-cache": "/var/lib/redis-module/grants" },
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"own-secrets": { default: "/var/lib/redis-module/default.secret", broker: "/var/lib/mesh/redis/broker" },
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resources: [
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{ id: "mesh-state", type: "directory", path: "/var/lib/mesh/redis", mode: "0700" },
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{ id: "state", type: "directory", path: "/var/lib/redis-module", mode: "0700" },
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{ id: "grants-dir", type: "directory", path: "/var/lib/redis-module/grants", mode: "0700" },
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{ id: "data", type: "directory", path: "/services/redis/data", mode: "0700", owner: "999:999" },
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{
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id: "server-conf", type: "file", path: "/var/lib/redis-module/redis.conf", mode: "0644",
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content: "requirepass ${secret:default}\nappendonly no\ndir /data\n",
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},
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{ id: "net", type: "network", name: "redis" },
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{
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id: "server", type: "container", name: "redis", image: pinned("redis"), network: "redis",
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ports: ["6379"],
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volumes: ["/services/redis/data:/data", "/var/lib/redis-module/redis.conf:/etc/redis/redis.conf:ro"],
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args: ["/etc/redis/redis.conf"],
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},
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{
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id: "runtime", type: "container", name: "mesh-redis", image: pinned("mesh-runtime-redis"),
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network: "redis",
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volumes: [
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"/var/lib/mesh/redis/broker:/run/secrets/broker:ro",
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"/var/lib/redis-module/grants:/var/lib/redis-module/grants:ro",
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"/var/lib/redis-module/default.secret:/run/secrets/default:ro",
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],
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env: {
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MESH_BROKER_FILE: "/run/secrets/broker",
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MESH_RECEIVES: "/var/lib/redis-module/grants/mesh.json",
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MESH_PROVISION_REDIS: "redis:6379",
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MESH_PROVISION_PASSWORD_FILE: "/run/secrets/default",
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},
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},
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],
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});
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// The CONSUMER: a module that requires redis-cache and no more. It runs no code here — the mesh
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// delivers it a bound file (where redis is, and the login to present) and its sealed password,
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// which the host unseals onto the machine. That delivery is exactly what a real consumer reads.
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const consumerManifest = JSON.stringify({
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module: "cacheuser",
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version: "1",
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requires: ["redis-cache"],
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// `contributes` (not just `requires`) is what makes a consumer *ask* — the grant forms from a
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// contribution. It must be non-empty; redis's provisioner ignores the value (it uses the login
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// the mesh derives), so the name is only what marks this module as wanting a cache.
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contributes: { "redis-cache": { name: "cacheuser" } },
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binds: { "redis-cache": "/var/lib/cacheuser/redis.json" },
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secrets: { "redis-cache": "/var/lib/cacheuser/redis.secret" },
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resources: [{ id: "state", type: "directory", path: "/var/lib/cacheuser", mode: "0700" }],
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});
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await must(`printf %s ${quote(redisManifest)} > /tmp/redis.json && docker cp /tmp/redis.json mesh-controller:/redis.json`);
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await mesh("module add /redis.json");
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await mesh(`module issue redis --node ${MACHINE}`);
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await mesh(`assign ${MACHINE} redis`);
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await must(`printf %s ${quote(consumerManifest)} > /tmp/cacheuser.json && docker cp /tmp/cacheuser.json mesh-controller:/cacheuser.json`);
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await mesh("module add /cacheuser.json");
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await mesh(`assign ${MACHINE} cacheuser`);
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await mesh(`push ${MACHINE}`);
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await settled();
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// The mesh matched the two and wrote redis its contributions file — the test wrote nothing here.
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const contributions = await must(`cat /var/lib/redis-module/grants/mesh.json`);
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assert.match(contributions, /"as"/, `the mesh did not write redis a contributions file:\n${contributions}`);
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// The mesh delivered the consumer its bound file and its unsealed password.
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let boundRaw = "";
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const untilBound = Date.now() + 60_000;
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while (Date.now() < untilBound) {
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const got = await on(`cat /var/lib/cacheuser/redis.json 2>/dev/null`);
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if (got.ok && /"as"/.test(got.out)) { boundRaw = got.out; break; }
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await new Promise((r) => setTimeout(r, 3000));
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}
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assert.match(boundRaw, /"as"/, `the consumer was never told about its cache:\n${boundRaw}`);
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const bound = JSON.parse(boundRaw) as { as: string; from: string; provision: string };
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assert.equal(bound.provision, "redis-cache");
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assert.ok(bound.from, `the consumer was not told which node serves its cache:\n${boundRaw}`);
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const as = bound.as;
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const password = (await must(`cat /var/lib/cacheuser/redis.secret`)).trim();
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assert.ok(as && password, `the consumer's login or password was empty (as=${as})`);
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// redis's provisioner, reading only the mesh's contributions, created the ACL user. Wait for it.
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const adminPw = await must(`cat /var/lib/redis-module/default.secret`);
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let acl = "";
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const untilAcl = Date.now() + 60_000;
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while (Date.now() < untilAcl) {
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acl = (await on(`docker exec redis redis-cli -a ${quote(adminPw)} --no-auth-warning ACL LIST 2>/dev/null`)).out;
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if (acl.includes(as)) break;
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await new Promise((r) => setTimeout(r, 3000));
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}
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assert.match(acl, new RegExp(as.replace(/[.*+?^${}()|[\]\\]/g, "\\$&")),
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`redis never created the login the mesh granted (${as}):\n${(await on(`docker logs mesh-redis 2>&1 | tail -30`)).out}\n---\n${acl}`);
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// THE PROOF, from the consumer's side: the credential the mesh delivered *it* — the login from its
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// bound file, the password from its secret — authenticates against the login redis created. Mint
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// and create agreeing across the two ends, with no shared key and nothing the test placed.
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const authed = await on(`docker exec redis redis-cli --user ${quote(as)} --pass ${quote(password)} --no-auth-warning PING 2>&1`);
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assert.doesNotMatch(authed.out, /WRONGPASS|NOPERM|no password/i,
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`the consumer's mesh-delivered credential did not authenticate — the two ends do not agree:\n${authed.out}`);
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assert.match(authed.out, /PONG/, `expected PONG authenticating as the granted consumer:\n${authed.out}`);
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});
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