valknar
847c4be26b
Adds the remaining monitor types: a systeminformation-backed system widget (single-flight cached so multiple widgets don't force concurrent samples), an http widget with per-widget consecutive- failure tracking, and a traefik widget that reads router/entrypoint/ middleware status from Traefik's own API. Also adds opt-in label-based docker auto-discovery (discovery.docker in config.yml): containers carrying traefik.enable=true are turned into docker widgets in a synthetic "Discovered" group, re-scanned on a timer and whenever config.yml changes, with manual widgets always taking precedence over a discovered one for the same container. Fixes a real bug surfaced while testing discovery: Next's App Router bundles app/** through its own compiler pass, separate from server.ts (run directly via tsx), so configStore/effectiveConfigStore were silently instantiated twice - one instance watched and updated by server.ts, another frozen instance read by SSR. Live config edits were never reflected on page load without a full process restart. Both stores now key their singleton off globalThis, which both module graphs share within the same process. Verified against a real Traefik v3 container (API-driven router list, ping-based http check) and a labeled nginx container (auto-discovery), including that a config.yml edit now shows up in a fresh page load without restarting the server, in both dev and the production build.
62 lines
1.8 KiB
TypeScript
62 lines
1.8 KiB
TypeScript
import { createServer } from "node:http";
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import next from "next";
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import { attachWebSocketServer } from "./lib/ws/server";
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import { configStore } from "./lib/config/loader";
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import { effectiveConfigStore } from "./lib/config/effective";
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import { collectorScheduler } from "./lib/collectors/scheduler";
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const port = Number(process.env.PORT ?? 3000);
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const hostname = process.env.HOSTNAME ?? "0.0.0.0";
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const dev = process.env.NODE_ENV !== "production";
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const app = next({ dev, hostname, port });
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const handle = app.getRequestHandler();
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async function main(): Promise<void> {
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await app.prepare();
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const upgradeHandler = app.getUpgradeHandler();
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configStore.load();
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configStore.watch();
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await effectiveConfigStore.start();
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collectorScheduler.start(effectiveConfigStore.get());
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effectiveConfigStore.onUpdate((config) => collectorScheduler.reconcile(config));
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const httpServer = createServer((req, res) => {
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handle(req, res);
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});
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const wss = attachWebSocketServer(httpServer);
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httpServer.on("upgrade", (req, socket, head) => {
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const pathname = new URL(req.url ?? "/", "http://internal").pathname;
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if (pathname === "/ws") {
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wss.handleUpgrade(req, socket, head, (ws) => {
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wss.emit("connection", ws, req);
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});
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return;
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}
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void upgradeHandler(req, socket, head);
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});
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function shutdown(): void {
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collectorScheduler.stop();
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effectiveConfigStore.stop();
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configStore.stop();
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httpServer.close(() => process.exit(0));
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setTimeout(() => process.exit(0), 5_000).unref();
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}
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process.on("SIGTERM", shutdown);
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process.on("SIGINT", shutdown);
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httpServer.listen(port, () => {
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console.log(`> PulseNode listening on http://${hostname}:${port}`);
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});
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}
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main().catch((err) => {
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console.error(err);
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process.exit(1);
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});
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