Scrape fluent-bit metrics by Prometheus

common/playbooks/templates/fluent-bit.yaml.j2

@@ -105,6 +105,12 @@ extraVolumeMounts:
     mountPath: "/secrets"
 
 {% endif %}
+service:
+  annotations:
+    prometheus.io/path: "/api/v1/metrics/prometheus"
+    prometheus.io/port: "2020"
+    prometheus.io/scrape: "true"
+
 # daemonset runnable on control plane nodes
 tolerations:
   - key: node-role.kubernetes.io/control-plane