Deploy Cinder CSI driver to provision volumes over OpenStack (#5184)

* Deploy Cinder CSI driver to provision volumes over OpenStack

* Deploy Cinder CSI StorageClass

* Cinder CSI doc

roles/kubernetes-apps/csi_driver/cinder/templates/cinder-csi-nodeplugin-rbac.yml.j2

@@ -0,0 +1,30 @@
+# This YAML defines all API objects to create RBAC roles for csi node plugin.
+
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: csi-cinder-node-sa
+  namespace: kube-system
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-nodeplugin-role
+rules:
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["get", "list", "watch", "create", "update", "patch"]
+
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: csi-nodeplugin-binding
+subjects:
+  - kind: ServiceAccount
+    name: csi-cinder-node-sa
+    namespace: kube-system
+roleRef:
+  kind: ClusterRole
+  name: csi-nodeplugin-role
+  apiGroup: rbac.authorization.k8s.io