add example headless service

johnstcn · johnstcn · commit d9a275a2ed6b · 2024-02-20T11:14:40.000Z
diff --git a/docs/admin/prometheus.md b/docs/admin/prometheus.md
@@ -37,7 +37,26 @@ setting the environment variable `CODER_PROMETHEUS_ADDRESS` to `0.0.0.0:2112`.
 The environment variable `CODER_PROMETHEUS_ENABLE` will be enabled
 automatically. A Service Endpoint will not be exposed; if you need to expose the
 Prometheus port on a Service, (for example, to use a `ServiceMonitor`), create a
-separate service instead.
+separate headless service instead:
+
+```yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: coder-prom
+  namespace: coder
+spec:
+  clusterIP: None
+  ports:
+  - name: prom-http
+    port: 2112
+    protocol: TCP
+    targetPort: 2112
+  selector:
+    app.kubernetes.io/instance: coder
+    app.kubernetes.io/name: coder
+  type: ClusterIP
+```
 
 ### Prometheus configuration
 
