mirrors/ceph-csi
1
0
Fork 0
mirror of https://github.com/ceph/ceph-csi.git synced 2025-06-14 02:43:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

rbd: make use of both listSnapshots and listChildren

Browse Source 
Currently, CephCSI only uses listSnaps to determine
number of snapshots on a RBD image and uses snapshot
names as child image names to flatten them.
But child images may have different name(in case of
group snapshot) or they maybe in trash
(deleted k8s VolSnapshot with alive restored PVC).

The above problems are avoid by making use of both
snap and child image lists.

Signed-off-by: Rakshith R <rar@redhat.com>
This commit is contained in:
Rakshith R
2024-11-22 17:15:46 +05:30
committed by mergify[bot]
parent 9936033283
commit 09d848e017
2 changed files with 34 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

76
internal/rbd/rbd_util.go
View File

@ -785,13 +785,9 @@ func (ri *rbdImage) getCloneDepth(ctx context.Context) (uint, error) {
}
}
type trashSnapInfo struct {
origSnapName string
}
func flattenClonedRbdImages(
ctx context.Context,
snaps []librbd.SnapInfo,
children []string,
pool, monitors, rbdImageName string,
cr *util.Credentials,
) error {
@ -807,26 +803,9 @@ func flattenClonedRbdImages(
return err
}
var origNameList []trashSnapInfo
for _, snapInfo := range snaps {
// check if the snapshot belongs to trash namespace.
isTrash, retErr := rv.isTrashSnap(snapInfo.Id)
if retErr != nil {
return retErr
}
if isTrash {
// get original snap name for the snapshot in trash namespace
origSnapName, retErr := rv.getOrigSnapName(snapInfo.Id)
if retErr != nil {
return retErr
}
origNameList = append(origNameList, trashSnapInfo{origSnapName})
}
}
for _, snapName := range origNameList {
rv.RbdImageName = snapName.origSnapName
for _, childName := range children {
rv.RbdImageName = childName
err = rv.flattenRbdImage(ctx, true, rbdHardMaxCloneDepth, rbdSoftMaxCloneDepth)
if err != nil {
log.ErrorLog(ctx, "failed to flatten %s; err %v", rv, err)
@ -2052,57 +2031,26 @@ func (ri *rbdImage) DisableDeepFlatten() error {
return image.UpdateFeatures(librbd.FeatureDeepFlatten, false)
}
func (ri *rbdImage) listSnapshots() ([]librbd.SnapInfo, error) {
// listSnapAndChildren returns list of names of snapshots and child images.
func (ri *rbdImage) listSnapAndChildren() ([]librbd.SnapInfo, []string, error) {
image, err := ri.open()
if err != nil {
return nil, err
return nil, nil, err
}
defer image.Close()
snapInfoList, err := image.GetSnapshotNames()
snaps, err := image.GetSnapshotNames()
if err != nil {
return nil, err
return nil, nil, err
}
return snapInfoList, nil
}
// isTrashSnap returns true if the snapshot belongs to trash namespace.
func (ri *rbdImage) isTrashSnap(snapID uint64) (bool, error) {
image, err := ri.open()
// ListChildren() returns pools, images, err.
_, children, err := image.ListChildren()
if err != nil {
return false, err
}
defer image.Close()
// Get namespace type for the snapshot
nsType, err := image.GetSnapNamespaceType(snapID)
if err != nil {
return false, err
return nil, nil, err
}
if nsType == librbd.SnapNamespaceTypeTrash {
return true, nil
}
return false, nil
}
// getOrigSnapName returns the original snap name for
// the snapshots in Trash Namespace.
func (ri *rbdImage) getOrigSnapName(snapID uint64) (string, error) {
image, err := ri.open()
if err != nil {
return "", err
}
defer image.Close()
origSnapName, err := image.GetSnapTrashNamespace(snapID)
if err != nil {
return "", err
}
return origSnapName, nil
return snaps, children, nil
}
func (ri *rbdImage) isCompatibleEncryption(dst *rbdImage) error {