feat: Export prometheus metrics from the workers

1 files changed, 17 insertions, 0 deletions

diff --git a/apps/workers/metrics.ts b/apps/workers/metrics.ts
new file mode 100644
index 00000000..04eec1fb
--- /dev/null
+++ b/apps/workers/metrics.ts
@@ -0,0 +1,17 @@
+import { prometheus } from "@hono/prometheus";
+import { Counter, Registry } from "prom-client";
+
+const registry = new Registry();
+
+export const { printMetrics } = prometheus({
+  registry: registry,
+  prefix: "karakeep_",
+});
+
+export const workerStatsCounter = new Counter({
+  name: "karakeep_worker_stats",
+  help: "Stats for each worker",
+  labelNames: ["worker_name", "status"],
+});
+
+registry.registerMetric(workerStatsCounter);