def delete_volume(self, volume):
"""Deletes a logical volume."""
stdout, _ = self._execute('rbd', 'snap', 'ls', '--pool',
FLAGS.rbd_pool, volume['name'])
if stdout.count('\n') > 1:
raise exception.VolumeIsBusy(volume_name=volume['name'])
self._try_execute('rbd', 'rm', '--pool', FLAGS.rbd_pool,
volume['name'])
def delete_volume(self, volume):
"""Deletes a logical volume."""
if self._volume_not_present(volume['name']):
# If the volume isn't present, then don't attempt to delete
return True
# TODO(yamahata): lvm can't delete origin volume only without
# deleting derived snapshots. Can we do something fancy?
out, err = self._execute(
'sudo', 'lvdisplay', '--noheading', '-C', '-o', 'Attr',
'%s/%s' % (FLAGS.volume_group, volume['name']))
# fake_execute returns None resulting unit test error
if out:
out = out.strip()
if (out[0] == 'o') or (out[0] == 'O'):
raise exception.VolumeIsBusy(volume_name=volume['name'])
self._delete_volume(volume, volume['size'])