// Unmount will perform the steps to unmount and existing volume and detach
func (driver *Driver) Unmount(volumeName, volumeID string) error {
if volumeName == "" && volumeID == "" {
return errors.New("Missing volume name or ID")
}
instances, err := storage.GetInstance()
if err != nil {
return err
}
switch {
case len(instances) == 0:
return errors.New("No instances")
case len(instances) > 1:
return errors.New("Too many instances returned, limit the storagedrivers")
}
volumes, err := storage.GetVolume(volumeID, volumeName)
if err != nil {
return err
}
switch {
case len(volumes) == 0:
return errors.New("No volumes returned by name")
case len(volumes) > 1:
return errors.New("Multiple volumes returned by name")
}
volumeAttachment, err := storage.GetVolumeAttach(volumes[0].VolumeID, instances[0].InstanceID)
if err != nil {
return err
}
if len(volumeAttachment) == 0 {
return nil
}
mounts, err := rros.GetMounts(volumeAttachment[0].DeviceName, "")
if err != nil {
return err
}
if len(mounts) == 0 {
return nil
}
err = rros.Unmount(mounts[0].Mountpoint)
if err != nil {
return err
}
err = storage.DetachVolume(false, volumes[0].VolumeID, "")
if err != nil {
return err
}
return nil
}
if err != nil {
log.Fatal(err)
}
},
}
var unmountdeviceCmd = &cobra.Command{
Use: "unmount-device",
Run: func(cmd *cobra.Command, args []string) {
if mountPoint == "" {
log.Fatal("Missing --mountpoint")
}
err := rros.Unmount(mountPoint)
if err != nil {
log.Fatal(err)
}
},
}
var formatdeviceCmd = &cobra.Command{
Use: "format-device",
Run: func(cmd *cobra.Command, args []string) {
if deviceName == "" {
log.Fatal("Missing --devicename")
}