Add a message to show DataSourceRef

Author: xing-yang

pkg/syncer/cnsoperator/controller/cnsregistervolume/cnsregistervolume_controller.go

@@ -597,6 +597,24 @@ func (r *ReconcileCnsRegisterVolume) Reconcile(ctx context.Context,
 				}
 				return reconcile.Result{RequeueAfter: timeout}, nil
 			}
+
+			// Check DataSourceRef if it exists
+			if pvc.Spec.DataSourceRef != nil {
+				// Print out the DataSourceRef if it exists and is not a VolumeSnapshot
+				if !(pvc.Spec.DataSourceRef.Kind == "VolumeSnapshot" && (pvc.Spec.DataSourceRef.APIGroup != nil &&
+					*pvc.Spec.DataSourceRef.APIGroup == "snapshot.storage.k8s.io")) {
+					log.Infof("PVC %s in namespace %s has DataSourceRef with apiGroup: %s, kind: %s, name: %s",
+						pvc.Name, pvc.Namespace,
+						func() string {
+							if pvc.Spec.DataSourceRef.APIGroup != nil {
+								return *pvc.Spec.DataSourceRef.APIGroup
+							}
+							return ""
+						}(),
+						pvc.Spec.DataSourceRef.Kind,
+						pvc.Spec.DataSourceRef.Name)
+				}
+			}
 		} else {
 			log.Errorf("Failed to create PVC with spec: %+v. Error: %+v", pvcSpec, err)
 			setInstanceError(ctx, r, instance,