add secret type to RBD secrets in examples and e2e test

examples/experimental/persistent-volume-provisioning/rbd/ceph-secret-admin.yaml

@@ -2,5 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: ceph-secret-admin
+type: "kubernetes.io/rbd"
 data:
   key: QVFEQ1pMdFhPUnQrSmhBQUFYaERWNHJsZ3BsMmNjcDR6RFZST0E9PQ==

examples/experimental/persistent-volume-provisioning/rbd/ceph-secret-user.yaml

@@ -2,5 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: ceph-secret-user
+type: "kubernetes.io/rbd"  
 data:
   key: QVFBTWdYaFZ3QkNlRGhBQTlubFBhRnlmVVNhdEdENGRyRldEdlE9PQ==

examples/volumes/rbd/secret/ceph-secret.yaml

@@ -2,5 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: ceph-secret
+type: "kubernetes.io/rbd"  
 data:
   key: QVFCMTZWMVZvRjVtRXhBQTVrQ1FzN2JCajhWVUxSdzI2Qzg0SEE9PQ==

test/e2e/volumes.go

@@ -556,6 +556,7 @@ var _ = framework.KubeDescribe("Volumes [Feature:Volumes]", func() {
 					// from test/images/volumes-tester/rbd/keyring
 					"key": []byte("AQDRrKNVbEevChAAEmRC+pW/KBVHxa0w/POILA=="),
 				},
+				Type: "kubernetes.io/rbd",
 			}
 
 			secClient := cs.Core().Secrets(config.namespace)
@@ -627,6 +628,7 @@ var _ = framework.KubeDescribe("Volumes [Feature:Volumes]", func() {
 				Data: map[string][]byte{
 					"key": []byte("AQAMgXhVwBCeDhAA9nlPaFyfUSatGD4drFWDvQ=="),
 				},
+				Type: "kubernetes.io/cephfs",
 			}
 
 			defer func() {