nova/nova/virt/volumeutils.py
Walter A. Boring IV e6cdd1693b Switch to using os-brick
This patch changes the internals of some
of the libvirt volume drivers to use the
os-brick Connector objects.   Cinder already
uses os-brick for volume discovery and removal
for copy volume to image and image to volume
operations.

This patch changes the following libvirt volume drivers:
LibvirtISCSIVolumeDriver
LibvirtISERVolumeDriver
LibvirtAOEVolumeDriver
LibvirtFibreChannelVolumeDriver

This patch also removes the need to have the
nova/storage module that was used by the above listed
libvirt volume drivers.

This patch also fetches the initiator side information
from os-brick.  This replaces the internals of the
libvirt driver's get_volume_connector

Also updated the rootwrap filters to consolidate them under
a single comment, and added a new os-brick needed command.

blueprint use-os-brick-library

Change-Id: I400db60fcc29c2d5e2d3b9dabc055649138468eb
Depends-On: Id36f9665c8ff2a720713ceaaa5b05f9b03706681
2015-07-27 10:47:22 -07:00

35 lines
1.2 KiB
Python

# Copyright 2014 Hewlett-Packard Development Company, L.P.
# 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.
"""
Volume utilities for virt drivers.
"""
from os_brick.initiator import connector
from oslo_concurrency import processutils as putils
from nova import utils
def get_iscsi_initiator(execute=None):
"""Get iscsi initiator name for this machine."""
root_helper = utils._get_root_helper()
# so we can mock out the execute itself
# in unit tests.
if not execute:
execute = putils.execute
iscsi = connector.ISCSIConnector(root_helper=root_helper,
execute=execute)
return iscsi.get_initiator()