vendor files

vendor/github.com/kubernetes-csi/drivers/pkg/flexadapter/nodeserver.go

@@ -0,0 +1,113 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package flexadapter
+
+import (
+	"os"
+
+	"github.com/container-storage-interface/spec/lib/go/csi"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"k8s.io/kubernetes/pkg/util/mount"
+	"k8s.io/kubernetes/pkg/volume/util"
+
+	"github.com/kubernetes-csi/drivers/pkg/csi-common"
+)
+
+type nodeServer struct {
+	flexDriver *flexVolumeDriver
+	*csicommon.DefaultNodeServer
+}
+
+func mountDevice(devicePath, targetPath, fsType string, readOnly bool, mountOptions []string) error {
+	var options []string
+
+	if readOnly {
+		options = append(options, "ro")
+	} else {
+		options = append(options, "rw")
+	}
+	options = append(options, mountOptions...)
+
+	diskMounter := &mount.SafeFormatAndMount{Interface: mount.New(""), Exec: mount.NewOsExec()}
+
+	return diskMounter.FormatAndMount(deviceID, targetPath, fsType, options)
+}
+
+func (ns *nodeServer) NodePublishVolume(ctx context.Context, req *csi.NodePublishVolumeRequest) (*csi.NodePublishVolumeResponse, error) {
+
+	targetPath := req.GetTargetPath()
+	fsType := req.GetVolumeCapability().GetMount().GetFsType()
+
+	notMnt, err := mount.New("").IsLikelyNotMountPoint(targetPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			if err := os.MkdirAll(targetPath, 0750); err != nil {
+				return nil, status.Error(codes.Internal, err.Error())
+			}
+			notMnt = true
+		} else {
+			return nil, status.Error(codes.Internal, err.Error())
+		}
+	}
+
+	if !notMnt {
+		return &csi.NodePublishVolumeResponse{}, nil
+	}
+
+	call := GetFlexAdapter().flexDriver.NewDriverCall(mountCmd)
+	call.Append(req.GetTargetPath())
+
+	if req.GetPublishVolumeInfo() != nil {
+		call.Append(req.GetPublishVolumeInfo()[deviceID])
+	}
+
+	call.AppendSpec(req.GetVolumeId(), fsType, req.GetReadonly(), req.GetVolumeAttributes())
+	_, err = call.Run()
+	if isCmdNotSupportedErr(err) {
+		mountFlags := req.GetVolumeCapability().GetMount().GetMountFlags()
+		err := mountDevice(req.VolumeAttributes[deviceID], targetPath, fsType, req.GetReadonly(), mountFlags)
+		if err != nil {
+			return nil, status.Error(codes.Internal, err.Error())
+		}
+	} else if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &csi.NodePublishVolumeResponse{}, nil
+}
+
+func unmountDevice(path string) error {
+	return util.UnmountPath(path, mount.New(""))
+}
+
+func (ns *nodeServer) NodeUnpublishVolume(ctx context.Context, req *csi.NodeUnpublishVolumeRequest) (*csi.NodeUnpublishVolumeResponse, error) {
+
+	call := GetFlexAdapter().flexDriver.NewDriverCall(unmountCmd)
+	call.Append(req.GetTargetPath())
+
+	_, err := call.Run()
+	if isCmdNotSupportedErr(err) {
+		err := unmountDevice(req.GetTargetPath())
+		return nil, status.Error(codes.Internal, err.Error())
+	} else if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &csi.NodeUnpublishVolumeResponse{}, nil
+}