mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 04:10:22 +00:00
114 lines
3.3 KiB
Go
114 lines
3.3 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package flexadapter
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import (
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"os"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"golang.org/x/net/context"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume/util"
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"github.com/kubernetes-csi/drivers/pkg/csi-common"
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)
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type nodeServer struct {
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flexDriver *flexVolumeDriver
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*csicommon.DefaultNodeServer
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}
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func mountDevice(devicePath, targetPath, fsType string, readOnly bool, mountOptions []string) error {
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var options []string
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if readOnly {
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options = append(options, "ro")
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} else {
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options = append(options, "rw")
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}
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options = append(options, mountOptions...)
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diskMounter := &mount.SafeFormatAndMount{Interface: mount.New(""), Exec: mount.NewOsExec()}
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return diskMounter.FormatAndMount(deviceID, targetPath, fsType, options)
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}
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func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
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targetPath := req.GetTargetPath()
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fsType := req.GetVolumeCapability().GetMount().GetFsType()
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notMnt, err := mount.New("").IsLikelyNotMountPoint(targetPath)
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if err != nil {
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if os.IsNotExist(err) {
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if err := os.MkdirAll(targetPath, 0750); err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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notMnt = true
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} else {
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return nil, status.Error(codes.Internal, err.Error())
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}
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}
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if !notMnt {
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return &csi.NodePublishVolumeResponse{}, nil
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}
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call := GetFlexAdapter().flexDriver.NewDriverCall(mountCmd)
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call.Append(req.GetTargetPath())
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if req.GetPublishVolumeInfo() != nil {
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call.Append(req.GetPublishVolumeInfo()[deviceID])
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}
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call.AppendSpec(req.GetVolumeId(), fsType, req.GetReadonly(), req.GetVolumeAttributes())
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_, err = call.Run()
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if isCmdNotSupportedErr(err) {
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mountFlags := req.GetVolumeCapability().GetMount().GetMountFlags()
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err := mountDevice(req.VolumeAttributes[deviceID], targetPath, fsType, req.GetReadonly(), mountFlags)
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if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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} else if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return &csi.NodePublishVolumeResponse{}, nil
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}
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func unmountDevice(path string) error {
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return util.UnmountPath(path, mount.New(""))
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}
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func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
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call := GetFlexAdapter().flexDriver.NewDriverCall(unmountCmd)
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call.Append(req.GetTargetPath())
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_, err := call.Run()
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if isCmdNotSupportedErr(err) {
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err := unmountDevice(req.GetTargetPath())
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return nil, status.Error(codes.Internal, err.Error())
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} else if err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return &csi.NodeUnpublishVolumeResponse{}, nil
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}
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