feat: system/http/traefik collectors and docker auto-discovery (M3)

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.
2026-08-17 14:17:24 +02:00
parent 9890f964c5
commit 847c4be26b
19 changed files with 579 additions and 13 deletions
@@ -0,0 +1,46 @@
+"use client";
+
+import type { Widget } from "@/lib/config/schema";
+import { useWidgetSubscription } from "@/lib/ws/client";
+
+type TraefikWidget = Extract<Widget, { type: "traefik" }>;
+
+export function TraefikWidget({ widget, widgetId }: { widget: TraefikWidget; widgetId: string }) {
+  const result = useWidgetSubscription(widgetId);
+  const data = result?.type === "traefik" ? result.data : null;
+  const errorMessage = result?.type === "error" ? result.message : null;
+
+  return (
+    <div className="flex flex-col gap-3 rounded-[var(--radius-widget)] border border-border bg-surface p-4 sm:col-span-2">
+      <div className="flex items-center justify-between">
+        <span className="text-sm font-medium text-fg">{widget.name}</span>
+        {data && (
+          <span className="text-xs text-fg-muted">
+            {data.entrypoints.map((ep) => ep.address).join(" · ") || `${data.entrypoints.length} entrypoints`}
+          </span>
+        )}
+      </div>
+      {errorMessage && <span className="text-xs text-status-down">{errorMessage}</span>}
+      {data && (
+        <div className="flex flex-col gap-1">
+          {data.routers.map((router) => (
+            <div key={router.name} className="flex items-center justify-between gap-2 text-xs">
+              <span className="truncate text-fg" title={router.rule}>
+                {router.name.replace(/@.*$/, "")}
+              </span>
+              <span className="flex items-center gap-1 text-fg-muted">
+                {router.tls && <span title="TLS enabled">🔒</span>}
+                <span
+                  className={router.status === "enabled" ? "text-status-up" : "text-status-down"}
+                >
+                  {router.status}
+                </span>
+              </span>
+            </div>
+          ))}
+          <span className="pt-1 text-xs text-fg-muted">{data.middlewaresCount} middlewares</span>
+        </div>
+      )}
+    </div>
+  );
+}