Add and set the new pvVolumeSnapshotContentList field

client/apis/volumegroupsnapshot/v1beta1/types.go

@@ -333,6 +333,12 @@ type VolumeGroupSnapshotContentStatus struct {
 	// +optional
 	VolumeGroupSnapshotHandle *string `json:"volumeGroupSnapshotHandle,omitempty" protobuf:"bytes,1,opt,name=volumeGroupSnapshotHandle"`
 
+	// VolumeSnapshotHandlePairList is a list of CSI "volume_id" and "snapshot_id"
+	// pair returned by the CSI driver to identify snapshots and their source volumes
+	// on the storage system.
+	// +optional
+	VolumeSnapshotHandlePairList []VolumeSnapshotHandlePair `json:"volumeSnapshotHandlePairList,omitempty" protobuf:"bytes,6,opt,name=volumeSnapshotHandlePairList"`
+
 	// CreationTime is the timestamp when the point-in-time group snapshot is taken
 	// by the underlying storage system.
 	// If not specified, it indicates the creation time is unknown.
@@ -410,3 +416,14 @@ type GroupSnapshotHandles struct {
 	// Required.
 	VolumeSnapshotHandles []string `json:"volumeSnapshotHandles" protobuf:"bytes,2,opt,name=volumeSnapshotHandles"`
 }
+
+// VolumeSnapshotHandlePair defines a pair of a source volume handle and a snapshot handle
+type VolumeSnapshotHandlePair struct {
+	// VolumeHandle is a unique id returned by the CSI driver to identify a volume
+	// on the storage system
+	VolumeHandle string `json:"volumeHandle" protobuf:"bytes,1,opt,name=volumeHandle"`
+
+	// SnapshotHandle is a unique id returned by the CSI driver to identify a volume
+	// snapshot on the storage system
+	SnapshotHandle string `json:"snapshotHandle" protobuf:"bytes,2,opt,name=snapshotHandle"`
+}

client/config/crd/groupsnapshot.storage.k8s.io_volumegroupsnapshotcontents.yaml

@@ -325,6 +325,30 @@ spec:
                   If a storage system does not provide such an id, the
                   CSI driver can choose to return the VolumeGroupSnapshot name.
                 type: string
+              volumeSnapshotHandlePairList:
+                description: |-
+                  VolumeSnapshotHandlePairList is a list of CSI "volume_id" and "snapshot_id"
+                  pair returned by the CSI driver to identify snapshots and their source volumes
+                  on the storage system.
+                items:
+                  description: VolumeSnapshotHandlePair defines a pair of a source
+                    volume handle and a snapshot handle
+                  properties:
+                    snapshotHandle:
+                      description: |-
+                        SnapshotHandle is a unique id returned by the CSI driver to identify a volume
+                        snapshot on the storage system
+                      type: string
+                    volumeHandle:
+                      description: |-
+                        VolumeHandle is a unique id returned by the CSI driver to identify a volume
+                        on the storage system
+                      type: string
+                  required:
+                  - snapshotHandle
+                  - volumeHandle
+                  type: object
+                type: array
             type: object
         required:
         - spec

pkg/sidecar-controller/groupsnapshot_helper.go

@@ -39,6 +39,7 @@ import (
 // the handle of the volume that was snapshotted
 type snapshotContentNameVolumeHandlePair struct {
 	snapshotContentName string
+	snapshotHandle      string
 	volumeHandle        string
 }
 
@@ -493,6 +494,7 @@ func (ctrl *csiSnapshotSideCarController) createGroupSnapshotWrapper(groupSnapsh
 		}
 		snapshotContentLinks = append(snapshotContentLinks, snapshotContentNameVolumeHandlePair{
 			snapshotContentName: vsc.Name,
+			snapshotHandle:      snapshot.SnapshotId,
 			volumeHandle:        snapshot.SourceVolumeId,
 		})
 
@@ -685,7 +687,13 @@ func (ctrl *csiSnapshotSideCarController) updateGroupSnapshotContentStatus(
 					Name: pvName,
 				},
 			})
+
+			newStatus.VolumeSnapshotHandlePairList = append(newStatus.VolumeSnapshotHandlePairList, crdv1beta1.VolumeSnapshotHandlePair{
+				VolumeHandle:   snapshotContentLink.volumeHandle,
+				SnapshotHandle: snapshotContentLink.snapshotHandle,
+			})
 		}
+
 		updated = true
 	} else {
 		newStatus = groupSnapshotContentObj.Status.DeepCopy()
@@ -728,6 +736,15 @@ func (ctrl *csiSnapshotSideCarController) updateGroupSnapshotContentStatus(
 			}
 			updated = true
 		}
+		if len(newStatus.VolumeSnapshotHandlePairList) == 0 {
+			for _, snapshotContentLink := range snapshotContentLinks {
+				newStatus.VolumeSnapshotHandlePairList = append(newStatus.VolumeSnapshotHandlePairList, crdv1beta1.VolumeSnapshotHandlePair{
+					VolumeHandle:   snapshotContentLink.volumeHandle,
+					SnapshotHandle: snapshotContentLink.snapshotHandle,
+				})
+			}
+			updated = true
+		}
 	}
 
 	if updated {