/usr/lib/python3/dist-packages/os_brick/initiator/connectors/remotefs.py is in python3-os-brick 2.3.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
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#
# 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.
from oslo_log import log as logging
from os_brick import initiator
from os_brick.initiator.connectors import base
from os_brick.remotefs import remotefs
from os_brick import utils
LOG = logging.getLogger(__name__)
class RemoteFsConnector(base.BaseLinuxConnector):
"""Connector class to attach/detach NFS and GlusterFS volumes."""
def __init__(self, mount_type, root_helper, driver=None,
execute=None,
device_scan_attempts=initiator.DEVICE_SCAN_ATTEMPTS_DEFAULT,
*args, **kwargs):
kwargs = kwargs or {}
conn = kwargs.get('conn')
mount_type_lower = mount_type.lower()
if conn:
mount_point_base = conn.get('mount_point_base')
if mount_type_lower in ('nfs', 'glusterfs', 'scality',
'quobyte', 'vzstorage'):
kwargs[mount_type_lower + '_mount_point_base'] = (
kwargs.get(mount_type_lower + '_mount_point_base') or
mount_point_base)
else:
LOG.warning("Connection details not present."
" RemoteFsClient may not initialize properly.")
if mount_type_lower == 'scality':
cls = remotefs.ScalityRemoteFsClient
elif mount_type_lower == 'vzstorage':
cls = remotefs.VZStorageRemoteFSClient
else:
cls = remotefs.RemoteFsClient
self._remotefsclient = cls(mount_type, root_helper, execute=execute,
*args, **kwargs)
super(RemoteFsConnector, self).__init__(
root_helper, driver=driver,
execute=execute,
device_scan_attempts=device_scan_attempts,
*args, **kwargs)
@staticmethod
def get_connector_properties(root_helper, *args, **kwargs):
"""The RemoteFS connector properties."""
return {}
def set_execute(self, execute):
super(RemoteFsConnector, self).set_execute(execute)
self._remotefsclient.set_execute(execute)
def get_search_path(self):
return self._remotefsclient.get_mount_base()
def _get_volume_path(self, connection_properties):
mnt_flags = []
if connection_properties.get('options'):
mnt_flags = connection_properties['options'].split()
nfs_share = connection_properties['export']
self._remotefsclient.mount(nfs_share, mnt_flags)
mount_point = self._remotefsclient.get_mount_point(nfs_share)
path = mount_point + '/' + connection_properties['name']
return path
def get_volume_paths(self, connection_properties):
path = self._get_volume_path(connection_properties)
return [path]
@utils.trace
def connect_volume(self, connection_properties):
"""Ensure that the filesystem containing the volume is mounted.
:param connection_properties: The dictionary that describes all
of the target volume attributes.
connection_properties must include:
export - remote filesystem device (e.g. '172.18.194.100:/var/nfs')
name - file name within the filesystem
:type connection_properties: dict
:returns: dict
connection_properties may optionally include:
options - options to pass to mount
"""
path = self._get_volume_path(connection_properties)
return {'path': path}
@utils.trace
def disconnect_volume(self, connection_properties, device_info,
force=False, ignore_errors=False):
"""No need to do anything to disconnect a volume in a filesystem.
:param connection_properties: The dictionary that describes all
of the target volume attributes.
:type connection_properties: dict
:param device_info: historical difference, but same as connection_props
:type device_info: dict
"""
def extend_volume(self, connection_properties):
# TODO(walter-boring): is this possible?
raise NotImplementedError
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