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cephfs: add support for RWX clone from ROX
Add support to create RWX clone from the ROX clone, in ceph no subvolume clone is created when ROX clone is created from a snapshot just a internal ref counter is added. This PR allows creating a RWX clone from a ROX clone which allows users to create RW copy of PVC where cephcsi will identify the snapshot created for the ROX volume and creates a subvolume from the CephFS snapshot. updates: #3603 Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
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@ -299,6 +299,23 @@ func (cs *ControllerServer) CreateVolume(
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return nil, status.Error(codes.InvalidArgument, err.Error())
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return nil, status.Error(codes.InvalidArgument, err.Error())
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}
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}
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// As we are trying to create RWX volume from backing snapshot, we need to
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// retrieve the snapshot details from the backing snapshot and create a
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// subvolume clone from the snapshot.
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if parentVol != nil && parentVol.BackingSnapshot && !store.IsVolumeCreateRO(req.VolumeCapabilities) {
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// unset pvID as we dont have real subvolume for the parent volumeID as its a backing snapshot
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pvID = nil
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parentVol, _, sID, err = store.NewSnapshotOptionsFromID(ctx, parentVol.BackingSnapshotID, cr,
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req.GetSecrets(), cs.ClusterName, cs.SetMetadata)
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if err != nil {
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if errors.Is(err, cerrors.ErrSnapNotFound) {
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return nil, status.Error(codes.NotFound, err.Error())
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}
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return nil, status.Error(codes.Internal, err.Error())
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}
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}
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vID, err := store.CheckVolExists(ctx, volOptions, parentVol, pvID, sID, cr, cs.ClusterName, cs.SetMetadata)
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vID, err := store.CheckVolExists(ctx, volOptions, parentVol, pvID, sID, cr, cs.ClusterName, cs.SetMetadata)
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if err != nil {
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if err != nil {
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if cerrors.IsCloneRetryError(err) {
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if cerrors.IsCloneRetryError(err) {
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