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Signed-off-by: Madhu Rajanna <mrajanna@redhat.com>
This commit is contained in:
Madhu Rajanna
2019-01-28 17:17:06 +05:30
parent 6929db10e5
commit 25642fe404
12 changed files with 95 additions and 29 deletions
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16
pkg/rbd/controllerserver.go
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@ -39,6 +39,8 @@ const (
oneGB = 1073741824
)
// ControllerServer struct of rbd CSI driver with supported methods of CSI
// controller server spec.
type ControllerServer struct {
*csicommon.DefaultControllerServer
MetadataStore util.CachePersister
@ -49,6 +51,8 @@ var (
rbdSnapshots = map[string]*rbdSnapshot{}
)
// LoadExDataFromMetadataStore loads the rbd volume and snapshot
// info from metadata store
func (cs *ControllerServer) LoadExDataFromMetadataStore() error {
vol := &rbdVolume{}
cs.MetadataStore.ForAll("csi-rbd-vol-", vol, func(identifier string) error {
@ -80,6 +84,7 @@ func (cs *ControllerServer) validateVolumeReq(req *csi.CreateVolumeRequest) erro
return nil
}
// CreateVolume creates the volume in backend and store the volume metadata
func (cs *ControllerServer) CreateVolume(ctx context.Context, req *csi.CreateVolumeRequest) (*csi.CreateVolumeResponse, error) {
if err := cs.validateVolumeReq(req); err != nil {
@ -193,6 +198,8 @@ func (cs *ControllerServer) checkSnapshot(req *csi.CreateVolumeRequest, rbdVol *
return nil
}
// DeleteVolume deletes the volume in backend and removes the volume metadata
// from store
func (cs *ControllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVolumeRequest) (*csi.DeleteVolumeResponse, error) {
if err := cs.Driver.ValidateControllerServiceRequest(csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME); err != nil {
glog.Warningf("invalid delete volume req: %v", req)
@ -227,6 +234,8 @@ func (cs *ControllerServer) DeleteVolume(ctx context.Context, req *csi.DeleteVol
return &csi.DeleteVolumeResponse{}, nil
}
// ValidateVolumeCapabilities checks whether the volume capabilities requested
// are supported.
func (cs *ControllerServer) ValidateVolumeCapabilities(ctx context.Context, req *csi.ValidateVolumeCapabilitiesRequest) (*csi.ValidateVolumeCapabilitiesResponse, error) {
for _, cap := range req.VolumeCapabilities {
if cap.GetAccessMode().GetMode() != csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER {
@ -240,14 +249,18 @@ func (cs *ControllerServer) ValidateVolumeCapabilities(ctx context.Context, req
}, nil
}
// ControllerUnpublishVolume returns success response
func (cs *ControllerServer) ControllerUnpublishVolume(ctx context.Context, req *csi.ControllerUnpublishVolumeRequest) (*csi.ControllerUnpublishVolumeResponse, error) {
return &csi.ControllerUnpublishVolumeResponse{}, nil
}
// ControllerPublishVolume returns success response
func (cs *ControllerServer) ControllerPublishVolume(ctx context.Context, req *csi.ControllerPublishVolumeRequest) (*csi.ControllerPublishVolumeResponse, error) {
return &csi.ControllerPublishVolumeResponse{}, nil
}
// CreateSnapshot creates the snapshot in backend and stores metadata
// in store
func (cs *ControllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateSnapshotRequest) (*csi.CreateSnapshotResponse, error) {
if err := cs.Driver.ValidateControllerServiceRequest(csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT); err != nil {
glog.Warningf("invalid create snapshot req: %v", req)
@ -371,6 +384,8 @@ func (cs *ControllerServer) CreateSnapshot(ctx context.Context, req *csi.CreateS
}, nil
}
// DeleteSnapshot deletes the snapshot in backend and removes the
//snapshot metadata from store
func (cs *ControllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteSnapshotRequest) (*csi.DeleteSnapshotResponse, error) {
if err := cs.Driver.ValidateControllerServiceRequest(csi.ControllerServiceCapability_RPC_CREATE_DELETE_SNAPSHOT); err != nil {
glog.Warningf("invalid delete snapshot req: %v", req)
@ -410,6 +425,7 @@ func (cs *ControllerServer) DeleteSnapshot(ctx context.Context, req *csi.DeleteS
return &csi.DeleteSnapshotResponse{}, nil
}
// ListSnapshots lists the snapshots in the store
func (cs *ControllerServer) ListSnapshots(ctx context.Context, req *csi.ListSnapshotsRequest) (*csi.ListSnapshotsResponse, error) {
if err := cs.Driver.ValidateControllerServiceRequest(csi.ControllerServiceCapability_RPC_LIST_SNAPSHOTS); err != nil {
glog.Warningf("invalid list snapshot req: %v", req)