Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/pkg/volume/vsphere_volume/attacher.go

@@ -0,0 +1,256 @@
+/*
+Copyright 2016 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 vsphere_volume
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"time"
+
+	"github.com/golang/glog"
+	"k8s.io/kubernetes/pkg/cloudprovider/providers/vsphere"
+	"k8s.io/kubernetes/pkg/types"
+	"k8s.io/kubernetes/pkg/util/exec"
+	"k8s.io/kubernetes/pkg/util/keymutex"
+	"k8s.io/kubernetes/pkg/util/mount"
+	"k8s.io/kubernetes/pkg/volume"
+	volumeutil "k8s.io/kubernetes/pkg/volume/util"
+)
+
+type vsphereVMDKAttacher struct {
+	host           volume.VolumeHost
+	vsphereVolumes vsphere.Volumes
+}
+
+var _ volume.Attacher = &vsphereVMDKAttacher{}
+var _ volume.AttachableVolumePlugin = &vsphereVolumePlugin{}
+
+// Singleton key mutex for keeping attach operations for the same host atomic
+var attachdetachMutex = keymutex.NewKeyMutex()
+
+func (plugin *vsphereVolumePlugin) NewAttacher() (volume.Attacher, error) {
+	vsphereCloud, err := getCloudProvider(plugin.host.GetCloudProvider())
+	if err != nil {
+		return nil, err
+	}
+
+	return &vsphereVMDKAttacher{
+		host:           plugin.host,
+		vsphereVolumes: vsphereCloud,
+	}, nil
+}
+
+// Attaches the volume specified by the given spec to the given host.
+// On success, returns the device path where the device was attached on the
+// node.
+// Callers are responsible for retryinging on failure.
+// Callers are responsible for thread safety between concurrent attach and
+// detach operations.
+func (attacher *vsphereVMDKAttacher) Attach(spec *volume.Spec, nodeName types.NodeName) (string, error) {
+	volumeSource, _, err := getVolumeSource(spec)
+	if err != nil {
+		return "", err
+	}
+
+	glog.V(4).Infof("vSphere: Attach disk called for node %s", nodeName)
+
+	// Keeps concurrent attach operations to same host atomic
+	attachdetachMutex.LockKey(string(nodeName))
+	defer attachdetachMutex.UnlockKey(string(nodeName))
+
+	// vsphereCloud.AttachDisk checks if disk is already attached to host and
+	// succeeds in that case, so no need to do that separately.
+	_, diskUUID, err := attacher.vsphereVolumes.AttachDisk(volumeSource.VolumePath, nodeName)
+	if err != nil {
+		glog.Errorf("Error attaching volume %q: %+v", volumeSource.VolumePath, err)
+		return "", err
+	}
+
+	return path.Join(diskByIDPath, diskSCSIPrefix+diskUUID), nil
+}
+
+func (attacher *vsphereVMDKAttacher) VolumesAreAttached(specs []*volume.Spec, nodeName types.NodeName) (map[*volume.Spec]bool, error) {
+	volumesAttachedCheck := make(map[*volume.Spec]bool)
+	volumeSpecMap := make(map[string]*volume.Spec)
+	volumePathList := []string{}
+	for _, spec := range specs {
+		volumeSource, _, err := getVolumeSource(spec)
+		if err != nil {
+			glog.Errorf("Error getting volume (%q) source : %v", spec.Name(), err)
+			continue
+		}
+
+		volumePathList = append(volumePathList, volumeSource.VolumePath)
+		volumesAttachedCheck[spec] = true
+		volumeSpecMap[volumeSource.VolumePath] = spec
+	}
+	attachedResult, err := attacher.vsphereVolumes.DisksAreAttached(volumePathList, nodeName)
+	if err != nil {
+		glog.Errorf(
+			"Error checking if volumes (%v) are attached to current node (%q). err=%v",
+			volumePathList, nodeName, err)
+		return volumesAttachedCheck, err
+	}
+
+	for volumePath, attached := range attachedResult {
+		if !attached {
+			spec := volumeSpecMap[volumePath]
+			volumesAttachedCheck[spec] = false
+			glog.V(2).Infof("VolumesAreAttached: check volume %q (specName: %q) is no longer attached", volumePath, spec.Name())
+		}
+	}
+	return volumesAttachedCheck, nil
+}
+
+func (attacher *vsphereVMDKAttacher) WaitForAttach(spec *volume.Spec, devicePath string, timeout time.Duration) (string, error) {
+	volumeSource, _, err := getVolumeSource(spec)
+	if err != nil {
+		return "", err
+	}
+
+	if devicePath == "" {
+		return "", fmt.Errorf("WaitForAttach failed for VMDK %q: devicePath is empty.", volumeSource.VolumePath)
+	}
+
+	ticker := time.NewTicker(checkSleepDuration)
+	defer ticker.Stop()
+
+	timer := time.NewTimer(timeout)
+	defer timer.Stop()
+
+	for {
+		select {
+		case <-ticker.C:
+			glog.V(5).Infof("Checking VMDK %q is attached", volumeSource.VolumePath)
+			path, err := verifyDevicePath(devicePath)
+			if err != nil {
+				// Log error, if any, and continue checking periodically. See issue #11321
+				glog.Warningf("Error verifying VMDK (%q) is attached: %v", volumeSource.VolumePath, err)
+			} else if path != "" {
+				// A device path has successfully been created for the VMDK
+				glog.Infof("Successfully found attached VMDK %q.", volumeSource.VolumePath)
+				return path, nil
+			}
+		case <-timer.C:
+			return "", fmt.Errorf("Could not find attached VMDK %q. Timeout waiting for mount paths to be created.", volumeSource.VolumePath)
+		}
+	}
+}
+
+// GetDeviceMountPath returns a path where the device should
+// point which should be bind mounted for individual volumes.
+func (attacher *vsphereVMDKAttacher) GetDeviceMountPath(spec *volume.Spec) (string, error) {
+	volumeSource, _, err := getVolumeSource(spec)
+	if err != nil {
+		return "", err
+	}
+
+	return makeGlobalPDPath(attacher.host, volumeSource.VolumePath), nil
+}
+
+// GetMountDeviceRefs finds all other references to the device referenced
+// by deviceMountPath; returns a list of paths.
+func (plugin *vsphereVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
+	mounter := plugin.host.GetMounter()
+	return mount.GetMountRefs(mounter, deviceMountPath)
+}
+
+// MountDevice mounts device to global mount point.
+func (attacher *vsphereVMDKAttacher) MountDevice(spec *volume.Spec, devicePath string, deviceMountPath string) error {
+	mounter := attacher.host.GetMounter()
+	notMnt, err := mounter.IsLikelyNotMountPoint(deviceMountPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			if err := os.MkdirAll(deviceMountPath, 0750); err != nil {
+				glog.Errorf("Failed to create directory at %#v. err: %s", deviceMountPath, err)
+				return err
+			}
+			notMnt = true
+		} else {
+			return err
+		}
+	}
+
+	volumeSource, _, err := getVolumeSource(spec)
+	if err != nil {
+		return err
+	}
+
+	options := []string{}
+
+	if notMnt {
+		diskMounter := &mount.SafeFormatAndMount{Interface: mounter, Runner: exec.New()}
+		err = diskMounter.FormatAndMount(devicePath, deviceMountPath, volumeSource.FSType, options)
+		if err != nil {
+			os.Remove(deviceMountPath)
+			return err
+		}
+		glog.V(4).Infof("formatting spec %v devicePath %v deviceMountPath %v fs %v with options %+v", spec.Name(), devicePath, deviceMountPath, volumeSource.FSType, options)
+	}
+	return nil
+}
+
+type vsphereVMDKDetacher struct {
+	mounter        mount.Interface
+	vsphereVolumes vsphere.Volumes
+}
+
+var _ volume.Detacher = &vsphereVMDKDetacher{}
+
+func (plugin *vsphereVolumePlugin) NewDetacher() (volume.Detacher, error) {
+	vsphereCloud, err := getCloudProvider(plugin.host.GetCloudProvider())
+	if err != nil {
+		return nil, err
+	}
+
+	return &vsphereVMDKDetacher{
+		mounter:        plugin.host.GetMounter(),
+		vsphereVolumes: vsphereCloud,
+	}, nil
+}
+
+// Detach the given device from the given node.
+func (detacher *vsphereVMDKDetacher) Detach(deviceMountPath string, nodeName types.NodeName) error {
+
+	volPath := getVolPathfromDeviceMountPath(deviceMountPath)
+	attached, err := detacher.vsphereVolumes.DiskIsAttached(volPath, nodeName)
+	if err != nil {
+		// Log error and continue with detach
+		glog.Errorf(
+			"Error checking if volume (%q) is already attached to current node (%q). Will continue and try detach anyway. err=%v",
+			volPath, nodeName, err)
+	}
+
+	if err == nil && !attached {
+		// Volume is already detached from node.
+		glog.Infof("detach operation was successful. volume %q is already detached from node %q.", volPath, nodeName)
+		return nil
+	}
+
+	attachdetachMutex.LockKey(string(nodeName))
+	defer attachdetachMutex.UnlockKey(string(nodeName))
+	if err := detacher.vsphereVolumes.DetachDisk(volPath, nodeName); err != nil {
+		glog.Errorf("Error detaching volume %q: %v", volPath, err)
+		return err
+	}
+	return nil
+}
+
+func (detacher *vsphereVMDKDetacher) UnmountDevice(deviceMountPath string) error {
+	return volumeutil.UnmountPath(deviceMountPath, detacher.mounter)
+}