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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 oslo_utils.fixture import uuidsentinel as uuids
from nova.tests.unit.virt.libvirt.volume import test_mount
from nova.tests.unit.virt.libvirt.volume import test_volume
from nova import utils
from nova.virt.libvirt.volume import mount
from nova.virt.libvirt.volume import nfs
class LibvirtNFSVolumeDriverTestCase(test_volume.LibvirtVolumeBaseTestCase):
"""Tests the libvirt NFS volume driver."""
def setUp(self):
super(LibvirtNFSVolumeDriverTestCase, self).setUp()
self.useFixture(test_mount.MountFixture(self))
m = mount.get_manager()
m._reset_state()
self.mnt_base = '/mnt'
m.host_up(self.fake_host)
self.flags(nfs_mount_point_base=self.mnt_base, group='libvirt')
def test_libvirt_nfs_driver(self):
libvirt_driver = nfs.LibvirtNFSVolumeDriver(self.fake_host)
export_string = '192.168.1.1:/nfs/share1'
export_mnt_base = os.path.join(self.mnt_base,
utils.get_hash_str(export_string))
connection_info = {'data': {'export': export_string,
'name': self.name}}
instance = mock.sentinel.instance
instance.uuid = uuids.instance
libvirt_driver.connect_volume(connection_info, instance)
libvirt_driver.disconnect_volume(connection_info,
mock.sentinel.instance)
device_path = os.path.join(export_mnt_base,
connection_info['data']['name'])
self.assertEqual(connection_info['data']['device_path'], device_path)
self.mock_ensure_tree.assert_has_calls([mock.call(export_mnt_base)])
self.mock_mount.assert_has_calls([mock.call('nfs', export_string,
export_mnt_base, [])])
self.mock_umount.assert_has_calls([mock.call(export_mnt_base)])
self.mock_rmdir.assert_has_calls([mock.call(export_mnt_base)])
def test_libvirt_nfs_driver_get_config(self):
libvirt_driver = nfs.LibvirtNFSVolumeDriver(self.fake_host)
export_string = '192.168.1.1:/nfs/share1'
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)
tree = conf.format_dom()
self._assertFileTypeEquals(tree, file_path)
self.assertEqual('raw', tree.find('./driver').get('type'))
self.assertEqual('native', tree.find('./driver').get('io'))
def test_libvirt_nfs_driver_with_opts(self):
libvirt_driver = nfs.LibvirtNFSVolumeDriver(self.fake_host)
export_string = '192.168.1.1:/nfs/share1'
options = '-o intr,nfsvers=3'
export_mnt_base = os.path.join(self.mnt_base,
utils.get_hash_str(export_string))
connection_info = {'data': {'export': export_string,
'name': self.name,
'options': options}}
instance = mock.sentinel.instance
instance.uuid = uuids.instance
libvirt_driver.connect_volume(connection_info, instance)
libvirt_driver.disconnect_volume(connection_info,
mock.sentinel.instance)
self.mock_ensure_tree.assert_has_calls([mock.call(export_mnt_base)])
self.mock_mount.assert_has_calls([mock.call('nfs', export_string,
export_mnt_base,
['-o', 'intr,nfsvers=3'])])
self.mock_umount.assert_has_calls([mock.call(export_mnt_base)])
self.mock_rmdir.assert_has_calls([mock.call(export_mnt_base)])
def test_extend_volume(self):
libvirt_driver = nfs.LibvirtNFSVolumeDriver(self.fake_host)
export_string = '192.168.1.1:/nfs/share1'
connection_info = {'data': {'export': export_string,
'name': self.name}}
instance = mock.sentinel.instance
requested_size = 10
new_size = libvirt_driver.extend_volume(connection_info,
instance,
requested_size)
self.assertEqual(requested_size, new_size)
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