feat(metrics): Add db metrics for grafana

manifests/grafana/database.yaml

@@ -47,3 +47,7 @@ spec:
     limits:
       cpu: 500m
       memory: 500Mi
+
+  monitoring:
+    enablePodMonitor: true
+

manifests/kubelet-servicemonitor.yaml

@@ -8,5 +8,9 @@ spec:
     matchLabels:
       app.kubernetes.io/name: kubelet
   endpoints:
-    - port: http-metrics
+  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
     path: /metrics
+    port: https-metrics
+    scheme: https
+    tlsConfig:
+      insecureSkipVerify: true