Move VolumeGroupSnapshot to GA (#573)

Author: xing-yang

csi.proto

@@ -109,26 +109,21 @@ service Controller {
 }
 
 service GroupController {
-  option (alpha_service) = true;
-
   rpc GroupControllerGetCapabilities (
         GroupControllerGetCapabilitiesRequest)
     returns (GroupControllerGetCapabilitiesResponse) {}
 
   rpc CreateVolumeGroupSnapshot(CreateVolumeGroupSnapshotRequest)
     returns (CreateVolumeGroupSnapshotResponse) {
-        option (alpha_method) = true;
     }
 
   rpc DeleteVolumeGroupSnapshot(DeleteVolumeGroupSnapshotRequest)
     returns (DeleteVolumeGroupSnapshotResponse) {
-        option (alpha_method) = true;
     }
 
   rpc GetVolumeGroupSnapshot(
         GetVolumeGroupSnapshotRequest)
     returns (GetVolumeGroupSnapshotResponse) {
-        option (alpha_method) = true;
     }
 }
 
@@ -229,7 +224,7 @@ message PluginCapability {
       // attempt to invoke the REQUIRED GroupController service RPCs, as
       // well as specific RPCs as indicated by
       // GroupControllerGetCapabilities.
-      GROUP_CONTROLLER_SERVICE = 3 [(alpha_enum_value) = true];
+      GROUP_CONTROLLER_SERVICE = 3;
 
       // SNAPSHOT_METADATA_SERVICE indicates that the Plugin provides
       // RPCs to retrieve metadata on the allocated blocks of a single
@@ -1287,7 +1282,7 @@ message Snapshot {
   // and SP SHALL allow it to be deleted separately.
   // If this message is inside a VolumeGroupSnapshot message, the value
   // MUST be the same as the group_snapshot_id in that message.
-  string group_snapshot_id = 6 [(alpha_field) = true];
+  string group_snapshot_id = 6;
 }
 message DeleteSnapshotRequest {
   // The ID of the snapshot to be deleted.
@@ -1760,32 +1755,25 @@ message NodeExpandVolumeResponse {
   int64 capacity_bytes = 1;
 }
 message GroupControllerGetCapabilitiesRequest {
-  option (alpha_message) = true;
-
   // Intentionally empty.
 }
 
 message GroupControllerGetCapabilitiesResponse {
-  option (alpha_message) = true;
-
   // All the capabilities that the group controller service supports.
   // This field is OPTIONAL.
   repeated GroupControllerServiceCapability capabilities = 1;
 }
 
 // Specifies a capability of the group controller service.
 message GroupControllerServiceCapability {
-  option (alpha_message) = true;
-
   message RPC {
     enum Type {
       UNKNOWN = 0;
 
       // Indicates that the group controller plugin supports
       // creating, deleting, and getting details of a volume
       // group snapshot.
-      CREATE_DELETE_GET_VOLUME_GROUP_SNAPSHOT = 1
-      [(alpha_enum_value) = true];
+      CREATE_DELETE_GET_VOLUME_GROUP_SNAPSHOT = 1;
     }
 
     Type type = 1;
@@ -1797,8 +1785,6 @@ message GroupControllerServiceCapability {
   }
 }
 message CreateVolumeGroupSnapshotRequest {
-  option (alpha_message) = true;
-
   // The suggested name for the group snapshot. This field is REQUIRED
   // for idempotency.
   // Any Unicode string that conforms to the length limit is allowed
@@ -1826,16 +1812,12 @@ message CreateVolumeGroupSnapshotRequest {
 }
 
 message CreateVolumeGroupSnapshotResponse {
-  option (alpha_message) = true;
-
   // Contains all attributes of the newly created group snapshot.
   // This field is REQUIRED.
   VolumeGroupSnapshot group_snapshot = 1;
 }
 
 message VolumeGroupSnapshot {
-  option (alpha_message) = true;
-
   // The identifier for this group snapshot, generated by the plugin.
   // This field MUST contain enough information to uniquely identify
   // this specific snapshot vs all other group snapshots supported by
@@ -1867,8 +1849,6 @@ message VolumeGroupSnapshot {
   bool ready_to_use = 4;
 }
 message DeleteVolumeGroupSnapshotRequest {
-  option (alpha_message) = true;
-
   // The ID of the group snapshot to be deleted.
   // This field is REQUIRED.
   string group_snapshot_id = 1;
@@ -1895,11 +1875,8 @@ message DeleteVolumeGroupSnapshotRequest {
 
 message DeleteVolumeGroupSnapshotResponse {
   // Intentionally empty.
-  option (alpha_message) = true;
 }
 message GetVolumeGroupSnapshotRequest {
-  option (alpha_message) = true;
-
   // The ID of the group snapshot to fetch current group snapshot
   // information for.
   // This field is REQUIRED.
@@ -1926,8 +1903,6 @@ message GetVolumeGroupSnapshotRequest {
 }
 
 message GetVolumeGroupSnapshotResponse {
-  option (alpha_message) = true;
-
   // This field is REQUIRED
   VolumeGroupSnapshot group_snapshot = 1;
 }