63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
# 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 os_brick import initiator
|
|
from os_brick.initiator import connector
|
|
from oslo_log import log as logging
|
|
|
|
import nova.conf
|
|
from nova import utils
|
|
from nova.virt.libvirt.volume import volume as libvirt_volume
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
CONF = nova.conf.CONF
|
|
|
|
|
|
class LibvirtAOEVolumeDriver(libvirt_volume.LibvirtBaseVolumeDriver):
|
|
"""Driver to attach AoE volumes to libvirt."""
|
|
def __init__(self, host):
|
|
super(LibvirtAOEVolumeDriver,
|
|
self).__init__(host, is_block_dev=True)
|
|
|
|
# Call the factory here so we can support
|
|
# more than x86 architectures.
|
|
self.connector = connector.InitiatorConnector.factory(
|
|
initiator.AOE, utils.get_root_helper(),
|
|
device_scan_attempts=CONF.libvirt.num_aoe_discover_tries)
|
|
|
|
def get_config(self, connection_info, disk_info):
|
|
"""Returns xml for libvirt."""
|
|
conf = super(LibvirtAOEVolumeDriver,
|
|
self).get_config(connection_info, disk_info)
|
|
|
|
conf.source_type = "block"
|
|
conf.source_path = connection_info['data']['device_path']
|
|
return conf
|
|
|
|
def connect_volume(self, connection_info, instance):
|
|
LOG.debug("Calling os-brick to attach AoE Volume")
|
|
device_info = self.connector.connect_volume(connection_info['data'])
|
|
LOG.debug("Attached AoE volume %s", device_info)
|
|
|
|
connection_info['data']['device_path'] = device_info['path']
|
|
|
|
def disconnect_volume(self, connection_info, instance):
|
|
"""Detach the volume from instance_name."""
|
|
|
|
LOG.debug("calling os-brick to detach AoE Volume", instance=instance)
|
|
self.connector.disconnect_volume(connection_info['data'], None)
|
|
LOG.debug("Disconnected AoE Volume", instance=instance)
|
|
|
|
super(LibvirtAOEVolumeDriver,
|
|
self).disconnect_volume(connection_info, instance)
|