Files
pulsenode/lib/config/widgets.ts
T
valknar 9890f964c5 feat: live docker/database widgets over WebSocket (M2)
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.
2026-08-17 14:01:53 +02:00

22 lines
602 B
TypeScript

import type { Config, Widget } from "./schema";
export interface WidgetInstance {
id: string;
groupName: string;
widget: Widget;
}
export function widgetId(groupIndex: number, widgetIndex: number): string {
return `${groupIndex}:${widgetIndex}`;
}
export function flattenWidgets(config: Config): WidgetInstance[] {
const instances: WidgetInstance[] = [];
config.groups.forEach((group, groupIndex) => {
group.widgets.forEach((widget, widgetIndex) => {
instances.push({ id: widgetId(groupIndex, widgetIndex), groupName: group.name, widget });
});
});
return instances;
}