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nfs: add support for create & delete snapshot
This commits adds support for creation and deletion of nfs snapshots based on cephfs. Signed-off-by: Rakshith R <rar@redhat.com>
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@ -46,6 +46,7 @@ type Server struct {
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func NewControllerServer(d *csicommon.CSIDriver) *Server {
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// global instance of the volume journal, yuck
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store.VolJournal = journal.NewCSIVolumeJournalWithNamespace(cephfs.CSIInstanceID, fsutil.RadosNamespace)
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store.SnapJournal = journal.NewCSISnapshotJournalWithNamespace(cephfs.CSIInstanceID, fsutil.RadosNamespace)
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return &Server{
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backendServer: cephfs.NewControllerServer(d),
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@ -159,3 +160,19 @@ func (cs *Server) ControllerExpandVolume(
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req *csi.ControllerExpandVolumeRequest) (*csi.ControllerExpandVolumeResponse, error) {
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return cs.backendServer.ControllerExpandVolume(ctx, req)
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}
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// CreateSnapshot calls the backend (CephFS) procedure to create snapshot.
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// There is no interaction with the NFS-server needed for snapshot creation.
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func (cs *Server) CreateSnapshot(
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ctx context.Context,
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req *csi.CreateSnapshotRequest) (*csi.CreateSnapshotResponse, error) {
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return cs.backendServer.CreateSnapshot(ctx, req)
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}
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// DeleteSnapshot calls the backend (CephFS) procedure to delete snapshot.
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// There is no interaction with the NFS-server needed for snapshot creation.
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func (cs *Server) DeleteSnapshot(
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ctx context.Context,
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req *csi.DeleteSnapshotRequest) (*csi.DeleteSnapshotResponse, error) {
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return cs.backendServer.DeleteSnapshot(ctx, req)
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}
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@ -47,6 +47,7 @@ func (fs *Driver) Run(conf *util.Config) {
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csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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csi.ControllerServiceCapability_RPC_SINGLE_NODE_MULTI_WRITER,
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csi.ControllerServiceCapability_RPC_EXPAND_VOLUME,
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csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT,
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})
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// VolumeCapabilities are validated by the CephFS Controller
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cd.AddVolumeCapabilityAccessModes([]csi.VolumeCapability_AccessMode_Mode{
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