def __init__(self, connection_info, **kwargs):
super(CryptsetupEncryptor, self).__init__(connection_info, **kwargs)
# Fail if no device_path was set when connecting the volume, e.g. in
# the case of libvirt network volume drivers.
data = connection_info['data']
if not data.get('device_path'):
volume_id = data.get('volume_id') or connection_info.get('serial')
raise exception.VolumeEncryptionNotSupported(
volume_id=volume_id,
volume_type=connection_info['driver_volume_type'])
# the device's path as given to libvirt -- e.g., /dev/disk/by-path/...
self.symlink_path = connection_info['data']['device_path']
# a unique name for the volume -- e.g., the iSCSI participant name
self.dev_name = self.symlink_path.split('/')[-1]
# the device's actual path on the compute host -- e.g., /dev/sd_
self.dev_path = os.path.realpath(self.symlink_path)
def __init__(self, connection_info, **kwargs):
super(CryptsetupEncryptor, self).__init__(connection_info, **kwargs)
# Fail if no device_path was set when connecting the volume, e.g. in
# the case of libvirt network volume drivers.
data = connection_info['data']
if not data.get('device_path'):
volume_id = data.get('volume_id') or connection_info.get('serial')
raise exception.VolumeEncryptionNotSupported(
volume_id=volume_id,
volume_type=connection_info['driver_volume_type'])
# the device's path as given to libvirt -- e.g., /dev/disk/by-path/...
self.symlink_path = connection_info['data']['device_path']
# a unique name for the volume -- e.g., the iSCSI participant name
self.dev_name = 'crypt-%s' % self.symlink_path.split('/')[-1]
# NOTE(tsekiyama): In older version of nova, dev_name was the same
# as the symlink name. Now it has 'crypt-' prefix to avoid conflict
# with multipath device symlink. To enable rolling update, we use the
# old name when the encrypted volume already exists.
old_dev_name = self.symlink_path.split('/')[-1]
wwn = data.get('multipath_id')
if self._is_crypt_device_available(old_dev_name):
self.dev_name = old_dev_name
LOG.debug("Using old encrypted volume name: %s", self.dev_name)
elif wwn and wwn != old_dev_name:
# FibreChannel device could be named '/dev/mapper/<WWN>'.
if self._is_crypt_device_available(wwn):
self.dev_name = wwn
LOG.debug("Using encrypted volume name from wwn: %s",
self.dev_name)
# the device's actual path on the compute host -- e.g., /dev/sd_
self.dev_path = os.path.realpath(self.symlink_path)