jschoubben
7b06a7a408
Every module named its events the way the old bus spelled a routing key — `module.<module>.<verb>`. Design 29 says a module names an event locally and the mesh works out where it lands, so all 37 were stale against a rule already decided. On the new bus that derives into a namespace belonging to a module called "module", so no cross-module subscription in the mesh matched anything: nothing failed, nothing reacted (novox/hq 04-ISSUES/127). 36 manifests converted, and 43 files of module code with them. The code mattered as much as the manifests: the runtime builds the subject from what `emit()` is handed, so a converted manifest with unconverted code would have had the permission and the subject disagree. Three things the new check found on the way: - `photos` emitted an event its manifest never declared, which the new bus refuses outright. Declared. - `showcase` waited for an event nothing emits, so its demo could never be triggered — only `showcase` may publish under its own name. It emits both halves now. - `distribution` declared an event named after a different module. It emits `image.pushed` under its own name. An event about a *role* belongs on the seat, where the name outlives whoever holds it, but the sdk has no way to publish on a seat yet, so that stays recorded rather than declared. The audit logger's "everything" pattern is `**` rather than the old bus's `#`.
39 lines
1.5 KiB
TypeScript
39 lines
1.5 KiB
TypeScript
// dnsmasq's events. The resolver's answered set changes whenever the mesh rewrites the wildcard file
|
|
// and restarts it — a machine joined the private network or left it. This watches that file and
|
|
// announces, from the resolver's own vantage, that a name became (or stopped being) resolvable on
|
|
// this node: DNS having actually propagated here, distinct from the mesh's own node.* events.
|
|
//
|
|
// Emits (novox/hq ADR 0041/0042):
|
|
// module.dnsmasq.name.added — this node's resolver now answers a machine's name
|
|
// module.dnsmasq.name.removed — it no longer does
|
|
|
|
import { emit } from "@novox/mesh-sdk/events";
|
|
import { DnsmasqClient } from "./client.js";
|
|
|
|
const dnsmasq = DnsmasqClient.fromEnv();
|
|
|
|
// name -> address, primed silently so a restart does not re-announce every name it already answered.
|
|
const known = new Map<string, string>();
|
|
let primed = false;
|
|
|
|
async function poll(): Promise<void> {
|
|
const now = new Map((await dnsmasq.answeredNames()).map((a) => [a.name, a.address]));
|
|
if (primed) {
|
|
for (const [name, address] of now) {
|
|
if (!known.has(name)) await emit("name.added", { name, address });
|
|
}
|
|
for (const [name] of known) {
|
|
if (!now.has(name)) await emit("name.removed", { name });
|
|
}
|
|
}
|
|
known.clear();
|
|
for (const [name, address] of now) known.set(name, address);
|
|
primed = true;
|
|
}
|
|
|
|
const run = (): void => void poll().catch((err) => console.error(`[dnsmasq] ${err}`));
|
|
setInterval(run, 30_000);
|
|
run();
|
|
|
|
console.log("[dnsmasq] watching the resolver's answered names");
|