vendor files

vendor/k8s.io/kubernetes/pkg/volume/flexvolume/detacher.go

@@ -0,0 +1,98 @@
+/*
+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 flexvolume
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/kubernetes/pkg/volume"
+	"k8s.io/kubernetes/pkg/volume/util"
+)
+
+type flexVolumeDetacher struct {
+	plugin *flexVolumeAttachablePlugin
+}
+
+var _ volume.Detacher = &flexVolumeDetacher{}
+
+// Detach is part of the volume.Detacher interface.
+func (d *flexVolumeDetacher) Detach(volumeName string, hostName types.NodeName) error {
+
+	call := d.plugin.NewDriverCall(detachCmd)
+	call.Append(volumeName)
+	call.Append(string(hostName))
+
+	_, err := call.Run()
+	if isCmdNotSupportedErr(err) {
+		return (*detacherDefaults)(d).Detach(volumeName, hostName)
+	}
+	return err
+}
+
+// WaitForDetach is part of the volume.Detacher interface.
+func (d *flexVolumeDetacher) WaitForDetach(devicePath string, timeout time.Duration) error {
+	call := d.plugin.NewDriverCallWithTimeout(waitForDetachCmd, timeout)
+	call.Append(devicePath)
+
+	_, err := call.Run()
+	if isCmdNotSupportedErr(err) {
+		return (*detacherDefaults)(d).WaitForDetach(devicePath, timeout)
+	}
+	return err
+}
+
+// UnmountDevice is part of the volume.Detacher interface.
+func (d *flexVolumeDetacher) UnmountDevice(deviceMountPath string) error {
+
+	if pathExists, pathErr := util.PathExists(deviceMountPath); pathErr != nil {
+		return fmt.Errorf("Error checking if path exists: %v", pathErr)
+	} else if !pathExists {
+		glog.Warningf("Warning: Unmount skipped because path does not exist: %v", deviceMountPath)
+		return nil
+	}
+
+	notmnt, err := isNotMounted(d.plugin.host.GetMounter(d.plugin.GetPluginName()), deviceMountPath)
+	if err != nil {
+		return err
+	}
+	if notmnt {
+		glog.Warningf("Warning: Path: %v already unmounted", deviceMountPath)
+	} else {
+		call := d.plugin.NewDriverCall(unmountDeviceCmd)
+		call.Append(deviceMountPath)
+
+		_, err := call.Run()
+		if isCmdNotSupportedErr(err) {
+			err = (*detacherDefaults)(d).UnmountDevice(deviceMountPath)
+		}
+		if err != nil {
+			return err
+		}
+	}
+
+	// Flexvolume driver may remove the directory. Ignore if it does.
+	if pathExists, pathErr := util.PathExists(deviceMountPath); pathErr != nil {
+		return fmt.Errorf("Error checking if path exists: %v", pathErr)
+	} else if !pathExists {
+		return nil
+	}
+	return os.Remove(deviceMountPath)
+}