Address comments

manifests/prometheus-serviceMonitorCoreDNS.yaml

@@ -0,0 +1,20 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  labels:
+    k8s-app: coredns
+  name: coredns
+  namespace: monitoring
+spec:
+  endpoints:
+  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
+    interval: 15s
+    port: http-metrics
+  jobLabel: k8s-app
+  namespaceSelector:
+    matchNames:
+    - kube-system
+  selector:
+    matchLabels:
+      component: metrics
+      k8s-app: coredns