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package driver
import (
"context"
"fmt"
"os"
"strings"
"github.com/golang/glog"
"github.com/container-storage-interface/spec/lib/go/csi"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/utils/mount"
)
type NodeServer struct {
Driver *SeaweedFsDriver
mounter mount.Interface
}
var _ = csi.NodeServer(&NodeServer{})
func (ns *NodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
// mount the fs here
targetPath := req.GetTargetPath()
mo := req.GetVolumeCapability().GetMount().GetMountFlags()
if req.GetReadonly() {
mo = append(mo, "ro")
}
source := fmt.Sprintf("%s%s", ns.Driver.filer, ns.Driver.pathOnFiler)
err := ns.Driver.mount(source, targetPath)
if err != nil {
if os.IsPermission(err) {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
if strings.Contains(err.Error(), "invalid argument") {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
return nil, status.Error(codes.Internal, err.Error())
}
return &csi.NodePublishVolumeResponse{}, nil
}
func (ns *NodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
targetPath := req.GetTargetPath()
err := ns.Driver.unmount(targetPath)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
err = os.Remove(targetPath)
if err != nil && !os.IsNotExist(err) {
return nil, status.Error(codes.Internal, err.Error())
}
return &csi.NodeUnpublishVolumeResponse{}, nil
}
func (ns *NodeServer) NodeGetInfo(ctx context.Context, req *csi.NodeGetInfoRequest) (*csi.NodeGetInfoResponse, error) {
glog.V(5).Infof("Using default NodeGetInfo")
return &csi.NodeGetInfoResponse{
NodeId: ns.Driver.nodeID,
}, nil
}
func (ns *NodeServer) NodeGetCapabilities(ctx context.Context, req *csi.NodeGetCapabilitiesRequest) (*csi.NodeGetCapabilitiesResponse, error) {
glog.V(5).Infof("Using default NodeGetCapabilities")
return &csi.NodeGetCapabilitiesResponse{
Capabilities: []*csi.NodeServiceCapability{
{
Type: &csi.NodeServiceCapability_Rpc{
Rpc: &csi.NodeServiceCapability_RPC{
Type: csi.NodeServiceCapability_RPC_UNKNOWN,
},
},
},
},
}, nil
}
func (ns *NodeServer) NodeGetVolumeStats(ctx context.Context, in *csi.NodeGetVolumeStatsRequest) (*csi.NodeGetVolumeStatsResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
func (ns *NodeServer) NodeUnstageVolume(ctx context.Context, req *csi.NodeUnstageVolumeRequest) (*csi.NodeUnstageVolumeResponse, error) {
return &csi.NodeUnstageVolumeResponse{}, nil
}
func (ns *NodeServer) NodeStageVolume(ctx context.Context, req *csi.NodeStageVolumeRequest) (*csi.NodeStageVolumeResponse, error) {
return &csi.NodeStageVolumeResponse{}, nil
}
func (ns *NodeServer) NodeExpandVolume(ctx context.Context, req *csi.NodeExpandVolumeRequest) (*csi.NodeExpandVolumeResponse, error) {
return nil, status.Error(codes.Unimplemented, "")
}
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