func (util *RBDUtil) DetachDisk(c rbdCleaner, mntPath string) error {
device, cnt, err := mount.GetDeviceNameFromMount(c.mounter, mntPath)
if err != nil {
return fmt.Errorf("rbd detach disk: failed to get device from mnt: %s\nError: %v", mntPath, err)
}
if err = c.mounter.Unmount(mntPath); err != nil {
return fmt.Errorf("rbd detach disk: failed to umount: %s\nError: %v", mntPath, err)
}
// if device is no longer used, see if can unmap
if cnt <= 1 {
// rbd unmap
_, err = c.plugin.execCommand("rbd", []string{"unmap", device})
if err != nil {
return fmt.Errorf("rbd: failed to unmap device %s:Error: %v", device, err)
}
// load ceph and image/pool info to remove fencing
if err := util.loadRBD(c.rbdBuilder, mntPath); err == nil {
// remove rbd lock
util.defencing(c)
}
glog.Infof("rbd: successfully unmap device %s", device)
}
return nil
}
func (util *ISCSIUtil) DetachDisk(c iscsiDiskUnmounter, mntPath string) error {
_, cnt, err := mount.GetDeviceNameFromMount(c.mounter, mntPath)
if err != nil {
glog.Errorf("iscsi detach disk: failed to get device from mnt: %s\nError: %v", mntPath, err)
return err
}
if err = c.mounter.Unmount(mntPath); err != nil {
glog.Errorf("iscsi detach disk: failed to unmount: %s\nError: %v", mntPath, err)
return err
}
cnt--
// if device is no longer used, see if need to logout the target
if cnt == 0 {
device, prefix, err := extractDeviceAndPrefix(mntPath)
if err != nil {
return err
}
refCount, err := getDevicePrefixRefCount(c.mounter, prefix)
if err == nil && refCount == 0 {
// this portal/iqn are no longer referenced, log out
// extract portal and iqn from device path
portal, iqn, err := extractPortalAndIqn(device)
if err != nil {
return err
}
glog.Infof("iscsi: log out target %s iqn %s", portal, iqn)
out, err := c.plugin.execCommand("iscsiadm", []string{"-m", "node", "-p", portal, "-T", iqn, "--logout"})
if err != nil {
glog.Errorf("iscsi: failed to detach disk Error: %s", string(out))
}
}
}
return nil
}
func (util *ISCSIUtil) DetachDisk(c iscsiDiskCleaner, mntPath string) error {
device, cnt, err := mount.GetDeviceNameFromMount(c.mounter, mntPath)
if err != nil {
glog.Errorf("iscsi detach disk: failed to get device from mnt: %s\nError: %v", mntPath, err)
return err
}
if err = c.mounter.Unmount(mntPath); err != nil {
glog.Errorf("iscsi detach disk: failed to unmount: %s\nError: %v", mntPath, err)
return err
}
cnt--
// if device is no longer used, see if need to logout the target
if cnt == 0 {
// strip -lun- from device path
ind := strings.LastIndex(device, "-lun-")
prefix := device[:(ind - 1)]
refCount, err := getDevicePrefixRefCount(c.mounter, prefix)
if err == nil && refCount == 0 {
// this portal/iqn are no longer referenced, log out
// extract portal and iqn from device path
ind1 := strings.LastIndex(device, "-iscsi-")
portal := device[(len("/dev/disk/by-path/ip-")):ind1]
iqn := device[ind1+len("-iscsi-") : ind]
glog.Infof("iscsi: log out target %s iqn %s", portal, iqn)
out, err := c.plugin.execCommand("iscsiadm", []string{"-m", "node", "-p", portal, "-T", iqn, "--logout"})
if err != nil {
glog.Errorf("iscsi: failed to detach disk Error: %s", string(out))
}
}
}
return nil
}
// TearDownAt simply deletes everything in the directory.
func (f *flexVolumeUnmounter) TearDownAt(dir string) error {
if pathExists, pathErr := util.PathExists(dir); 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", dir)
return nil
}
notmnt, err := f.mounter.IsLikelyNotMountPoint(dir)
if err != nil {
glog.Errorf("Error checking mount point %s, error: %v", dir, err)
return err
}
if notmnt {
return os.Remove(dir)
}
device, refCount, err := mount.GetDeviceNameFromMount(f.mounter, dir)
if err != nil {
glog.Errorf("Failed to get reference count for volume: %s", dir)
return err
}
if err := f.manager.unmount(f, dir); err != nil {
if !isCmdNotSupportedErr(err) {
glog.Errorf("Failed to unmount volume %s", f.volName)
return err
}
// Unmount not supported by the driver. Use core unmount logic.
if err := f.mounter.Unmount(dir); err != nil {
glog.Errorf("Failed to unmount volume: %s, error: %v", dir, err)
return err
}
}
if refCount == 1 {
if err := f.manager.detach(f, device); err != nil {
if !isCmdNotSupportedErr(err) {
glog.Errorf("Failed to teardown volume: %s, error: %v", dir, err)
return err
}
// Teardown not supported by driver. Unmount is good enough.
}
}
notmnt, err = f.mounter.IsLikelyNotMountPoint(dir)
if err != nil {
glog.Errorf("Error checking mount point %s, error: %v", dir, err)
return err
}
if notmnt {
return os.Remove(dir)
}
return nil
}
// TearDownAt simply deletes everything in the directory.
func (f *flexVolumeCleaner) TearDownAt(dir string) error {
notmnt, err := f.mounter.IsLikelyNotMountPoint(dir)
if err != nil {
glog.Errorf("Error checking mount point %s, error: %v", dir, err)
return err
}
if notmnt {
return os.Remove(dir)
}
device, refCount, err := mount.GetDeviceNameFromMount(f.mounter, dir)
if err != nil {
glog.Errorf("Failed to get reference count for volume: %s", dir)
return err
}
if err := f.manager.unmount(f, dir); err != nil {
if !isCmdNotSupportedErr(err) {
glog.Errorf("Failed to unmount volume %s", f.volName)
return err
}
// Unmount not supported by the driver. Use core unmount logic.
if err := f.mounter.Unmount(dir); err != nil {
glog.Errorf("Failed to unmount volume: %s, error: %s", dir, err.Error())
return err
}
}
if refCount == 1 {
if err := f.manager.detach(f, device); err != nil {
if !isCmdNotSupportedErr(err) {
glog.Errorf("Failed to teardown volume: %s, error: %s", dir, err.Error())
return err
}
// Teardown not supported by driver. Unmount is good enough.
}
}
notmnt, err = f.mounter.IsLikelyNotMountPoint(dir)
if err != nil {
glog.Errorf("Error checking mount point %s, error: %v", dir, err)
return err
}
if notmnt {
return os.Remove(dir)
}
return nil
}
