Adds a custom server.ts (http server + Next request handler + a noServer:true WebSocket server on /ws) so the app can push live data without polling. A CollectorScheduler runs one interval-based job per docker/database widget instance, backed by dockerode against /var/run/docker.sock, and reconciles jobs when config.yml changes. Config hot-reload is now fully wired: chokidar watches config.yml/.env, re-validates on change, and broadcasts config:update (or a non-destructive config:error, keeping the last-good config) to every connected browser. The client subscribes to per-widget topics over a single shared WebSocket with exponential-backoff reconnect and last-result caching for instant resubscribe. Verified end-to-end against real throwaway containers (nginx, redis): live CPU/mem/uptime/health streamed over the socket, interval changes picked up without a server restart, and a broken config.yml correctly falls back to the last-valid config instead of crashing the app.
18 lines
442 B
TypeScript
18 lines
442 B
TypeScript
const DURATION_PATTERN = /^(\d+)(ms|s|m|h)$/;
|
|
|
|
const UNIT_MS: Record<string, number> = {
|
|
ms: 1,
|
|
s: 1_000,
|
|
m: 60_000,
|
|
h: 3_600_000,
|
|
};
|
|
|
|
export function parseDuration(value: string): number {
|
|
const match = DURATION_PATTERN.exec(value.trim());
|
|
if (!match) {
|
|
throw new Error(`Invalid duration "${value}" (expected e.g. "500ms", "5s", "1m", "1h")`);
|
|
}
|
|
const [, amount, unit] = match;
|
|
return Number(amount) * UNIT_MS[unit];
|
|
}
|