deploy attacher sidecar in rbd provisioner sts

currently we are deploying external-attacher
as a seperate statefulset, which leads to
attacher communicating with the node provisoner
daemonset, This PR deploys external-attacher
as a sidecar container inside provisioner
statefulset, so that external-provisioner
always communicates with the plugin responsible
for the provision controller capcabilities.

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

deploy/rbd/kubernetes/csi-provisioner-rbac.yaml

@@ -43,6 +43,12 @@ rules:
   - apiGroups: ["csi.storage.k8s.io"]
     resources: ["csinodeinfos"]
     verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["storage.k8s.io"]
+    resources: ["volumeattachments"]
+    verbs: ["get", "list", "watch", "update"]
 
 ---
 kind: ClusterRoleBinding