added services + serviceMonitor

k8s/mongodb-headless-svc.yaml

@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongodb-headless
+  namespace: database
+spec:
+  type: ClusterIP
+  clusterIP: None
+  publishNotReadyAddresses: true
+  ports:
+  - name: mongodb
+    port: 27017
+    targetPort: mongodb
+  selector:
+    app.kubernetes.io/name: mongodb
+    app.kubernetes.io/component: mongodb

k8s/monogodb-metrics-svc.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: mongodb-metrics
+  namespace: database
+  labels:
+    app.kubernetes.io/name: mongodb
+spec:
+  type: ClusterIP
+  ports:
+  - port: 9216
+    targetPort: metrics
+    protocol: TCP
+    name: http-metrics
+  selector:
+    app.kubernetes.io/name: mongodb
+    app.kubernetes.io/component: mongodb

k8s/monogodb-servicemonitor.yaml

@@ -0,0 +1,17 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: mongodb
+  namespace: monitoring
+  labels:
+    team: devops-by-example
+spec:
+  endpoints:
+  - port: http-metrics
+    interval: 30s
+  namespaceSelector:
+    matchNames:
+    - database
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: mongodb