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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.
import os
from unittest import mock
from os_brick.initiator import connector
from nova import exception
from nova.tests.unit.virt.libvirt.volume import test_volume
from nova import utils
from nova.virt.libvirt.volume import vzstorage
class LibvirtVZStorageTestCase(test_volume.LibvirtVolumeBaseTestCase):
"""Tests the libvirt vzstorage volume driver."""
def setUp(self):
super(LibvirtVZStorageTestCase, self).setUp()
self.mnt_base = '/mnt'
self.flags(vzstorage_mount_point_base=self.mnt_base, group='libvirt')
self.flags(vzstorage_cache_path="/tmp/ssd-cache/%(cluster_name)s",
group='libvirt')
def test_libvirt_vzstorage_driver(self):
libvirt_driver = vzstorage.LibvirtVZStorageVolumeDriver(self.fake_host)
self.assertIsInstance(libvirt_driver.connector,
connector.RemoteFsConnector)
def test_libvirt_vzstorage_driver_opts_negative(self):
"""Test that custom options cannot duplicate the configured"""
bad_opts = [
["-c", "clus111", "-v"],
["-l", "/var/log/vstorage.log", "-L", "5x5"],
["-u", "user1", "-p", "pass1"],
["-v", "-R", "100", "-C", "/ssd"],
]
for opts in bad_opts:
self.flags(vzstorage_mount_opts=opts, group='libvirt')
self.assertRaises(exception.NovaException,
vzstorage.LibvirtVZStorageVolumeDriver,
self.fake_host)
def test_libvirt_vzstorage_driver_share_fmt_neg(self):
drv = vzstorage.LibvirtVZStorageVolumeDriver(self.fake_host)
wrong_export_string = 'mds1, mds2:/testcluster:passwd12111'
connection_info = {'data': {'export': wrong_export_string,
'name': self.name}}
err_pattern = (
"^Valid share format is "
r"\[mds\[,mds1\[\.\.\.\]\]:/\]clustername\[:password\]$")
self.assertRaisesRegex(exception.InvalidVolume,
err_pattern,
drv.connect_volume,
connection_info,
mock.sentinel.instance)
@mock.patch.object(vzstorage.utils, 'synchronized',
return_value=lambda f: f)
def test_libvirt_vzstorage_driver_connect(self, mock_synchronized):
def brick_conn_vol(data):
return {'path': 'vstorage://testcluster'}
drv = vzstorage.LibvirtVZStorageVolumeDriver(self.fake_host)
drv.connector.connect_volume = brick_conn_vol
export_string = 'testcluster'
connection_info = {'data': {'export': export_string,
'name': self.name}}
drv.connect_volume(connection_info, mock.sentinel.instance)
self.assertEqual('vstorage://testcluster',
connection_info['data']['device_path'])
self.assertEqual('-u stack -g qemu -m 0770 '
'-l /var/log/vstorage/testcluster/nova.log.gz '
'-C /tmp/ssd-cache/testcluster',
connection_info['data']['options'])
mock_synchronized.assert_called_once_with('vz_share-testcluster')
def test_libvirt_vzstorage_driver_disconnect(self):
drv = vzstorage.LibvirtVZStorageVolumeDriver(self.fake_host)
drv.connector.disconnect_volume = mock.MagicMock()
conn = {'data': mock.sentinel.conn_data}
drv.disconnect_volume(conn, mock.sentinel.instance)
drv.connector.disconnect_volume.assert_called_once_with(
mock.sentinel.conn_data, None)
def test_libvirt_vzstorage_driver_get_config(self):
libvirt_driver = vzstorage.LibvirtVZStorageVolumeDriver(self.fake_host)
export_string = 'vzstorage'
export_mnt_base = os.path.join(self.mnt_base,
utils.get_hash_str(export_string))
file_path = os.path.join(export_mnt_base, self.name)
connection_info = {'data': {'export': export_string,
'name': self.name,
'device_path': file_path}}
conf = libvirt_driver.get_config(connection_info, self.disk_info)
self.assertEqual('file', conf.source_type)
self.assertEqual(file_path, conf.source_path)
self.assertEqual('raw', conf.driver_format)
self.assertEqual('writeback', conf.driver_cache)
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