Annotate Grafana so Prometheus scrapes metrics

CHANGES.md

@@ -9,6 +9,7 @@ Notable changes between versions.
 #### Addons
 
 * Add Prometheus liveness and readiness probes
+* Annotate Grafana service so Prometheus scrapes metrics
 
 ## v1.10.3
 

addons/grafana/service.yaml

@@ -3,6 +3,9 @@ kind: Service
 metadata:
   name: grafana
   namespace: monitoring
+  annotations:
+    prometheus.io/scrape: 'true'
+    prometheus.io/port: '8080'
 spec:
   type: ClusterIP
   selector: