alexlebens/external-snapshotter
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Delete individual volume snapshots as part of the group snapshot delete API and prevent users from deleting individual volume snapshots if it is part of an existing group snapshot

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Also revert commit bb29899ca3.
This commit is contained in:
Raunak Pradip Shah
2023-11-07 11:26:37 +05:30
parent 5ca300ec1e
commit 060ee23d6d
13 changed files with 129 additions and 80 deletions
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41
pkg/common-controller/groupsnapshot_controller_helper.go
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@@ -1103,16 +1103,7 @@ func (ctrl *csiSnapshotCommonController) processGroupSnapshotWithDeletionTimesta
groupSnapshotContent = nil
}
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: delete group snapshot content and remove finalizer from group snapshot if needed", utils.GroupSnapshotKey(groupSnapshot))
return ctrl.checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent(groupSnapshot, groupSnapshotContent, deleteGroupSnapshotContent)
}
// checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent deletes
// the group snapshot content and removes group snapshot finalizers if needed
func (ctrl *csiSnapshotCommonController) checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent(groupSnapshot *crdv1alpha1.VolumeGroupSnapshot, groupSnapshotContent *crdv1alpha1.VolumeGroupSnapshotContent, deleteGroupSnapshotContent bool) error {
klog.V(5).Infof("checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent VolumeGroupSnapshot[%s]: %s", utils.GroupSnapshotKey(groupSnapshot), utils.GetGroupSnapshotStatusForLogging(groupSnapshot))
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: check if group snapshot is a candidate for deletion", utils.GroupSnapshotKey(groupSnapshot))
if !utils.IsGroupSnapshotDeletionCandidate(groupSnapshot) {
return nil
}
@@ -1135,14 +1126,15 @@ func (ctrl *csiSnapshotCommonController) checkandRemoveGroupSnapshotFinalizersAn
}
// regardless of the deletion policy, set the VolumeSnapshotBeingDeleted on
// content object, this is to allow snapshotter sidecar controller to conduct
// a delete operation whenever the content has deletion timestamp set.
// regardless of the deletion policy, set VolumeGroupSnapshotBeingDeleted on
// group snapshot content object, this is to allow snapshotter sidecar controller
// to conduct a delete operation whenever the group snapshot content has deletion
// timestamp set.
if groupSnapshotContent != nil {
klog.V(5).Infof("checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent[%s]: Set VolumeGroupSnapshotBeingDeleted annotation on the group snapshot content [%s]", utils.GroupSnapshotKey(groupSnapshot), groupSnapshotContent.Name)
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: Set VolumeGroupSnapshotBeingDeleted annotation on the group snapshot content [%s]", utils.GroupSnapshotKey(groupSnapshot), groupSnapshotContent.Name)
updatedGroupSnapshotContent, err := ctrl.setAnnVolumeGroupSnapshotBeingDeleted(groupSnapshotContent)
if err != nil {
klog.V(4).Infof("checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent[%s]: failed to set VolumeGroupSnapshotBeingDeleted annotation on the group snapshot content [%s]", utils.GroupSnapshotKey(groupSnapshot), groupSnapshotContent.Name)
klog.V(4).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: failed to set VolumeGroupSnapshotBeingDeleted annotation on the group snapshot content [%s]: %v", utils.GroupSnapshotKey(groupSnapshot), groupSnapshotContent.Name, err)
return err
}
groupSnapshotContent = updatedGroupSnapshotContent
@@ -1150,10 +1142,10 @@ func (ctrl *csiSnapshotCommonController) checkandRemoveGroupSnapshotFinalizersAn
// VolumeGroupSnapshot should be deleted. Check and remove finalizers
// If group snapshot content exists and has a deletion policy of Delete, set
// DeletionTimeStamp on the content;
// DeletionTimeStamp on the group snapshot content;
// VolumeGroupSnapshotContent won't be deleted immediately due to the VolumeGroupSnapshotContentFinalizer
if groupSnapshotContent != nil && deleteGroupSnapshotContent {
klog.V(5).Infof("checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent: set DeletionTimeStamp on group snapshot content [%s].", groupSnapshotContent.Name)
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: set DeletionTimeStamp on group snapshot content [%s].", utils.GroupSnapshotKey(groupSnapshot), groupSnapshotContent.Name)
err := ctrl.clientset.GroupsnapshotV1alpha1().VolumeGroupSnapshotContents().Delete(context.TODO(), groupSnapshotContent.Name, metav1.DeleteOptions{})
if err != nil {
ctrl.eventRecorder.Event(groupSnapshot, v1.EventTypeWarning, "GroupSnapshotContentObjectDeleteError", "Failed to delete group snapshot content API object")
@@ -1161,7 +1153,20 @@ func (ctrl *csiSnapshotCommonController) checkandRemoveGroupSnapshotFinalizersAn
}
}
klog.V(5).Infof("checkandRemoveGroupSnapshotFinalizersAndCheckandDeleteGroupSnapshotContent: Remove Finalizer for VolumeGroupSnapshot[%s]", utils.GroupSnapshotKey(groupSnapshot))
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s]: Delete individual snapshots that are part of the group snapshot", utils.GroupSnapshotKey(groupSnapshot))
// Delete the individual snapshots part of the group snapshot
for _, snapshot := range groupSnapshot.Status.VolumeSnapshotRefList {
err := ctrl.clientset.SnapshotV1().VolumeSnapshots(snapshot.Namespace).Delete(context.TODO(), snapshot.Name, metav1.DeleteOptions{})
if err != nil {
msg := fmt.Sprintf("failed to delete snapshot API object %s/%s part of group snapshot %s: %v", snapshot.Namespace, snapshot.Name, utils.GroupSnapshotKey(groupSnapshot), err)
klog.Error(msg)
ctrl.eventRecorder.Event(groupSnapshot, v1.EventTypeWarning, "SnapshotDeleteError", msg)
return fmt.Errorf(msg)
}
}
klog.V(5).Infof("processGroupSnapshotWithDeletionTimestamp[%s] : Remove Finalizer for VolumeGroupSnapshot", utils.GroupSnapshotKey(groupSnapshot))
// remove VolumeSnapshotBoundFinalizer on the VolumeGroupSnapshot object:
// a. If there is no group snapshot content found, remove the finalizer.
// b. If the group snapshot content is being deleted, i.e., with deleteGroupSnapshotContent == true,