Add 'contrib/kube-prometheus/' from commit '81c0d2f4d30f63a4e274c2870c5afc89241827b0'

git-subtree-dir: contrib/kube-prometheus
git-subtree-mainline: 050ca21276696c8603375c699513ec487301ed62
git-subtree-split: 81c0d2f4d3

manifests/examples/example-app/servicemonitor-frontend.yaml

@@ -0,0 +1,13 @@
+apiVersion: monitoring.coreos.com/v1alpha1
+kind: ServiceMonitor
+metadata:
+  name: frontend
+  labels:
+    tier: frontend
+spec:
+  selector:
+    matchLabels:
+      tier: frontend
+  endpoints:
+  - port: web
+    interval: 10s