addons: Add grafana 4.6.1 and extend prometheus docs

addons/grafana/deployment.yaml

@@ -0,0 +1,46 @@
+apiVersion: apps/v1beta2
+kind: Deployment
+metadata:
+  name: grafana
+  namespace: monitoring
+spec:
+  replicas: 1
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 1
+  selector:
+    matchLabels:
+      name: grafana
+      phase: prod
+  template:
+    metadata:
+      labels:
+        name: grafana
+        phase: prod
+    spec:
+      containers:
+        - name: grafana
+          image: grafana/grafana:4.6.1
+          env:
+            - name: GF_SERVER_HTTP_PORT
+              value: "8080"
+            - name: GF_AUTH_BASIC_ENABLED
+              value: "false"
+            - name: GF_AUTH_ANONYMOUS_ENABLED
+              value: "true"
+            - name: GF_AUTH_ANONYMOUS_ORG_ROLE
+              value: Admin
+          ports:
+            - name: http
+              containerPort: 8080
+          resources:
+            requests:
+              memory: 100Mi
+              cpu: 100m
+            limits:
+              memory: 200Mi
+              cpu: 200m
+      volumes:
+        - name: grafana-storage
+          emptyDir: {}

addons/grafana/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana
+  namespace: monitoring
+spec:
+  type: ClusterIP
+  selector:
+    name: grafana
+    phase: prod
+  ports:
+    - name: http
+      protocol: TCP
+      port: 80
+      targetPort: 8080