Update documentation and user guides for beta snapshotter

Author: saikat-royc

README.md

@@ -70,7 +70,7 @@ that represents availability by zone.
 | Snapshots       | Alpha | 1.13                          | Any                          | v0.3.0             | Alpha              |
 | Resize (Expand) | Alpha | 1.14                          | 1.14                         | v0.6.0             | Alpha              |
 | Resize (Expand) | Beta  | 1.16                          | 1.16                         | v0.7.0             | Stable             |
-
+| Snapshots       | Beta  | 1.17                          | Any                          | master             | Stable             |
 
 ### Future Features
 

docs/kubernetes/user-guides/snapshots.md

@@ -1,8 +1,8 @@
-# Kubernetes Snapshots User Guide (Alpha)
+# Kubernetes Snapshots User Guide (Beta)
 
->**Attention:** VolumeSnapshot is an alpha feature. Make sure you have enabled it in Kubernetes API server using `--feature-gates=VolumeSnapshotDataSource=true` flag.
+>**Attention:** Attention: VolumeSnapshot is a Beta feature enabled by default in Kubernetes 1.17+. Attention: VolumeSnapshot is only available in the driver version "master".
 
-### Install Driver with alpha snapshot feature
+### [Install Driver](https://github.com/kubernetes-sigs/gcp-compute-persistent-disk-csi-driver/blob/master/docs/kubernetes/user-guides/driver-install.md) with beta snapshot feature.
 
 1. [One-time per project] Create GCP service account for the CSI driver and set required roles
 
@@ -79,19 +79,34 @@
     The output is similar to this:
 
     ```yaml
-    apiVersion: snapshot.storage.k8s.io/v1alpha1
     kind: VolumeSnapshot
     metadata:
-      ...
-      name: snapshot-source-pvc
-      namespace: default
-      ...
+        creationTimestamp: "2020-05-13T21:48:08Z"
+        finalizers:
+        - snapshot.storage.kubernetes.io/volumesnapshot-as-source-protection
+        - snapshot.storage.kubernetes.io/volumesnapshot-bound-protection
+        generation: 1
+        managedFields:
+        - apiVersion: snapshot.storage.k8s.io/v1beta1
+        fieldsType: FieldsV1
+        fieldsV1:
+            f:status:
+            f:readyToUse: {}
+        manager: snapshot-controller
+        operation: Update
+        time: "2020-05-13T21:49:42Z"
+        name: snapshot-source-pvc
+        namespace: default
+        resourceVersion: "531499"
+        selfLink: /apis/snapshot.storage.k8s.io/v1beta1/namespaces/default/volumesnapshots/snapshot-source-pvc
+        uid: a10fd0ff-b868-4527-abe7-74d5b420731e
     spec:
-      snapshotClassName: default-snapshot-class
-      snapshotContentName: snapcontent-b408076b-720b-11e9-b9e3-42010a800014
-      ...
+      source:
+        persistentVolumeClaimName: source-pvc
+      volumeSnapshotClassName: csi-gce-pd-snapshot-class
     status:
-      creationTime: "2019-05-09T03:37:01Z"
+      boundVolumeSnapshotContentName: snapcontent-a10fd0ff-b868-4527-abe7-74d5b420731e
+      creationTime: "2020-05-13T21:48:43Z"
       readyToUse: true
       restoreSize: 6Gi
     ```

examples/kubernetes/snapshot/default-volumesnapshotclass.yaml

@@ -1,7 +1,6 @@
-apiVersion: snapshot.storage.k8s.io/v1alpha1
+apiVersion: snapshot.storage.k8s.io/v1beta1
 kind: VolumeSnapshotClass
 metadata:
-  annotations:
-    snapshot.storage.kubernetes.io/is-default-class: "true"
-  name: default-snapshot-class
-snapshotter: pd.csi.storage.gke.io
+  name: csi-gce-pd-snapshot-class
+driver: pd.csi.storage.gke.io
+deletionPolicy: Delete

examples/kubernetes/snapshot/snapshot.yaml

@@ -1,8 +1,8 @@
-apiVersion: snapshot.storage.k8s.io/v1alpha1
+apiVersion: snapshot.storage.k8s.io/v1beta1
 kind: VolumeSnapshot
 metadata:
   name: snapshot-source-pvc
 spec:
+  volumeSnapshotClassName: csi-gce-pd-snapshot-class
   source:
-    kind: PersistentVolumeClaim
-    name: source-pvc
+    persistentVolumeClaimName: source-pvc