cm metadata persist for rbd and cephfs

deploy/rbd/kubernetes/csi-rbdplugin.yaml

@@ -50,7 +50,8 @@ spec:
             - "--endpoint=$(CSI_ENDPOINT)"
             - "--v=5"
             - "--drivername=csi-rbdplugin"
-            - "--containerized=true"            
+            - "--containerized=true"
+            - "--metadatastorage=node"
           env:
             - name: HOST_ROOTFS
               value: "/rootfs"
@@ -58,6 +59,10 @@ spec:
               valueFrom:
                 fieldRef:
                   fieldPath: spec.nodeName
+            - name: POD_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
             - name: CSI_ENDPOINT
               value: unix://var/lib/kubelet/plugins/csi-rbdplugin/csi.sock
           imagePullPolicy: "IfNotPresent"