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# Copyright 2023 Red Hat, Inc.
# All Rights Reserved.
#
# 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_utils import importutils
from os_brick.initiator import connector
NFS = 'nfs'
SCALEIO = "scaleio"
BASE = 'glance_store._drivers.cinder.base.BaseBrickConnectorInterface'
_connector_mapping = {
NFS: 'glance_store._drivers.cinder.nfs.NfsBrickConnector',
SCALEIO: 'glance_store._drivers.cinder.scaleio.ScaleIOBrickConnector',
}
def factory(*args, **kwargs):
connection_info = kwargs.get('connection_info')
protocol = connection_info['driver_volume_type']
connector = _connector_mapping.get(protocol, BASE)
conn_cls = importutils.import_class(connector)
return conn_cls(*args, **kwargs)
class BaseBrickConnectorInterface(object):
def __init__(self, *args, **kwargs):
self.connection_info = kwargs.get('connection_info')
self.root_helper = kwargs.get('root_helper')
self.use_multipath = kwargs.get('use_multipath')
self.conn = connector.InitiatorConnector.factory(
self.connection_info['driver_volume_type'], self.root_helper,
conn=self.connection_info, use_multipath=self.use_multipath)
def connect_volume(self, volume):
device = self.conn.connect_volume(self.connection_info)
return device
def disconnect_volume(self, device):
# Bug #2004555: use force so there aren't any leftovers
self.conn.disconnect_volume(self.connection_info, device, force=True)
def extend_volume(self):
self.conn.extend_volume(self.connection_info)
def yield_path(self, volume, volume_path):
"""
This method returns the volume file path.
The reason for it's implementation is to fix Bug#2000584. More
information is added in the ScaleIO connector which makes actual
use of it's implementation.
"""
return volume_path
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