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https://github.com/ceph/ceph-csi.git
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cleanup: do not pass an empty snapshot to genSnapFromSnapID()
Just like GenVolFromVolID() the genSnapFromSnapID() function can return a snapshot. There is no need to allocated an empty snapshot and pass that to the genSnapFromSnapID() function. Signed-off-by: Niels de Vos <ndevos@ibm.com>
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063319f6e5
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@ -638,7 +638,6 @@ func (cs *ControllerServer) createVolumeFromSnapshot(
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rbdVol *rbdVolume,
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snapshotID string,
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) error {
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rbdSnap := &rbdSnapshot{}
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if acquired := cs.SnapshotLocks.TryAcquire(snapshotID); !acquired {
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log.ErrorLog(ctx, util.SnapshotOperationAlreadyExistsFmt, snapshotID)
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@ -646,7 +645,7 @@ func (cs *ControllerServer) createVolumeFromSnapshot(
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}
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defer cs.SnapshotLocks.Release(snapshotID)
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err := genSnapFromSnapID(ctx, rbdSnap, snapshotID, cr, secrets)
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rbdSnap, err := genSnapFromSnapID(ctx, snapshotID, cr, secrets)
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if err != nil {
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if errors.Is(err, util.ErrPoolNotFound) {
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log.ErrorLog(ctx, "failed to get backend snapshot for %s: %v", snapshotID, err)
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@ -789,8 +788,8 @@ func checkContentSource(
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if snapshotID == "" {
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return nil, nil, status.Errorf(codes.NotFound, "volume Snapshot ID cannot be empty")
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}
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rbdSnap := &rbdSnapshot{}
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if err := genSnapFromSnapID(ctx, rbdSnap, snapshotID, cr, req.GetSecrets()); err != nil {
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rbdSnap, err := genSnapFromSnapID(ctx, snapshotID, cr, req.GetSecrets())
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if err != nil {
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log.ErrorLog(ctx, "failed to get backend snapshot for %s: %v", snapshotID, err)
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if !errors.Is(err, ErrSnapNotFound) {
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return nil, nil, status.Error(codes.Internal, err.Error())
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@ -1429,8 +1428,8 @@ func (cs *ControllerServer) DeleteSnapshot(
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}
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defer cs.OperationLocks.ReleaseDeleteLock(snapshotID)
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rbdSnap := &rbdSnapshot{}
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if err = genSnapFromSnapID(ctx, rbdSnap, snapshotID, cr, req.GetSecrets()); err != nil {
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rbdSnap, err := genSnapFromSnapID(ctx, snapshotID, cr, req.GetSecrets())
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if err != nil {
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// if error is ErrPoolNotFound, the pool is already deleted we don't
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// need to worry about deleting snapshot or omap data, return success
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if errors.Is(err, util.ErrPoolNotFound) {
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@ -949,54 +949,57 @@ func (ri *rbdImage) checkImageChainHasFeature(ctx context.Context, feature uint6
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// genSnapFromSnapID generates a rbdSnapshot structure from the provided identifier, updating
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// the structure with elements from on-disk snapshot metadata as well.
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//
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// NOTE: The returned rbdSnapshot can be non-nil in case of an error. That
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// seems to be required for the DeleteSnapshot procedure, so that OMAP
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// attributes can be cleaned-up.
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func genSnapFromSnapID(
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ctx context.Context,
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rbdSnap *rbdSnapshot,
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snapshotID string,
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cr *util.Credentials,
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secrets map[string]string,
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) error {
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) (*rbdSnapshot, error) {
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var vi util.CSIIdentifier
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rbdSnap.VolID = snapshotID
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err := vi.DecomposeCSIID(rbdSnap.VolID)
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err := vi.DecomposeCSIID(snapshotID)
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if err != nil {
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log.ErrorLog(ctx, "error decoding snapshot ID (%s) (%s)", err, rbdSnap.VolID)
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log.ErrorLog(ctx, "error decoding snapshot ID (%s) (%s)", err, snapshotID)
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return err
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return nil, err
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}
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rbdSnap := &rbdSnapshot{}
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rbdSnap.VolID = snapshotID
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rbdSnap.ClusterID = vi.ClusterID
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rbdSnap.Monitors, _, err = util.GetMonsAndClusterID(ctx, rbdSnap.ClusterID, false)
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if err != nil {
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log.ErrorLog(ctx, "failed getting mons (%s)", err)
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return err
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return nil, err
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}
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rbdSnap.Pool, err = util.GetPoolName(rbdSnap.Monitors, cr, vi.LocationID)
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if err != nil {
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return err
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return nil, err
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}
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rbdSnap.JournalPool = rbdSnap.Pool
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rbdSnap.RadosNamespace, err = util.GetRadosNamespace(util.CsiConfigFile, rbdSnap.ClusterID)
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if err != nil {
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return err
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return nil, err
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}
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j, err := snapJournal.Connect(rbdSnap.Monitors, rbdSnap.RadosNamespace, cr)
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if err != nil {
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return err
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return nil, err
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}
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defer j.Destroy()
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imageAttributes, err := j.GetImageAttributes(
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ctx, rbdSnap.Pool, vi.ObjectUUID, true)
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if err != nil {
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return err
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return rbdSnap, err
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}
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rbdSnap.ImageID = imageAttributes.ImageID
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rbdSnap.RequestName = imageAttributes.RequestName
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@ -1009,42 +1012,42 @@ func genSnapFromSnapID(
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rbdSnap.JournalPool, err = util.GetPoolName(rbdSnap.Monitors, cr, imageAttributes.JournalPoolID)
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if err != nil {
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// TODO: If pool is not found we may leak the image (as DeleteSnapshot will return success)
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return err
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return rbdSnap, err
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}
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}
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err = rbdSnap.Connect(cr)
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if err != nil {
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return rbdSnap, fmt.Errorf("failed to connect to %q: %w",
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rbdSnap, err)
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}
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defer func() {
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if err != nil {
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rbdSnap.Destroy()
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}
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}()
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if err != nil {
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return fmt.Errorf("failed to connect to %q: %w",
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rbdSnap, err)
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}
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if imageAttributes.KmsID != "" && imageAttributes.EncryptionType == util.EncryptionTypeBlock {
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err = rbdSnap.configureBlockEncryption(imageAttributes.KmsID, secrets)
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if err != nil {
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return fmt.Errorf("failed to configure block encryption for "+
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return rbdSnap, fmt.Errorf("failed to configure block encryption for "+
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"%q: %w", rbdSnap, err)
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}
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}
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if imageAttributes.KmsID != "" && imageAttributes.EncryptionType == util.EncryptionTypeFile {
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err = rbdSnap.configureFileEncryption(ctx, imageAttributes.KmsID, secrets)
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if err != nil {
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return fmt.Errorf("failed to configure file encryption for "+
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return rbdSnap, fmt.Errorf("failed to configure file encryption for "+
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"%q: %w", rbdSnap, err)
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}
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}
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err = updateSnapshotDetails(rbdSnap)
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if err != nil {
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return fmt.Errorf("failed to update snapshot details for %q: %w", rbdSnap, err)
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return rbdSnap, fmt.Errorf("failed to update snapshot details for %q: %w", rbdSnap, err)
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}
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return err
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return rbdSnap, err
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}
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// updateSnapshotDetails will copy the details from the rbdVolume to the
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