implement grpc metrics for ceph-csi

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

deploy/rbd/kubernetes/v1.14+/helm/ceph-csi-rbd/templates/nodeplugin-daemonset.yaml

@@ -75,7 +75,14 @@ spec:
             - "--v=5"
             - "--drivername=$(DRIVER_NAME)"
             - "--containerized=true"
+            - "--metricsport=8090"
+            - "--metricspath=/metrics"
+            - "--enablegrpcmetrics=false"
           env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
             - name: DRIVER_NAME
               value: {{ .Values.driverName }}
             - name: NODE_ID
@@ -114,8 +121,8 @@ spec:
           args:
             - "--type=liveness"
             - "--endpoint=$(CSI_ENDPOINT)"
-            - "--livenessport=8081"
-            - "--livenesspath=/metrics"
+            - "--metricsport=8081"
+            - "--metricspath=/metrics"
             - "--polltime=60s"
             - "--timeout=3s"
           imagePullPolicy: {{ .Values.nodeplugin.plugin.image.pullPolicy }}

deploy/rbd/kubernetes/v1.14+/helm/ceph-csi-rbd/templates/nodeplugin-service.yaml

@@ -0,0 +1,25 @@
+kind: Service
+apiVersion: v1
+metadata:
+  name: {{ include "ceph-csi-rbd.nodeplugin.fullname" . }}
+  namespace: {{ .Release.Namespace }}
+  labels:
+    app: csi-metrics
+    chart: {{ include "ceph-csi-rbd.chart" . }}
+    component: {{ .Values.nodeplugin.name }}
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  selector:
+    app: {{ include "ceph-csi-rbd.name" . }}
+    component: {{ .Values.nodeplugin.name }}
+    release: {{ .Release.Name }}
+  ports:
+    - name: http-metrics
+      port: 8080
+      protocol: TCP
+      targetPort: 8080
+    - name: grpc-metrics
+      port: 8090
+      protocol: TCP
+      targetPort: 8090

deploy/rbd/kubernetes/v1.14+/helm/ceph-csi-rbd/templates/provisioner-deployment.yaml

@@ -98,7 +98,14 @@ spec:
             - "--drivername=$(DRIVER_NAME)"
             - "--containerized=true"
             - "--pidlimit=-1"
+            - "--metricsport=8090"
+            - "--metricspath=/metrics"
+            - "--enablegrpcmetrics=false"
           env:
+            - name: POD_IP
+              valueFrom:
+                fieldRef:
+                  fieldPath: status.podIP
             - name: DRIVER_NAME
               value: {{ .Values.driverName }}
             - name: NODE_ID