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neutron/neutron/tests/unit/agent/ovn/metadata/test_driver.py

130 lines
5.4 KiB

# Copyright 2017 OpenStack Foundation.
# 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.
import os
import mock
from neutron_lib import fixture as lib_fixtures
from oslo_config import cfg
from oslo_utils import uuidutils
from neutron.agent.ovn.metadata import agent as metadata_agent
from neutron.agent.ovn.metadata import driver as metadata_driver
from neutron.conf.agent.metadata import config as meta_conf
from neutron.conf.agent.ovn.metadata import config as ovn_meta_conf
from neutron.tests import base
from neutron.tests.unit.agent.linux import test_utils
_uuid = uuidutils.generate_uuid
class TestMetadataDriverProcess(base.BaseTestCase):
EUNAME = 'neutron'
EGNAME = 'neutron'
METADATA_DEFAULT_IP = '169.254.169.254'
METADATA_PORT = 8080
METADATA_SOCKET = '/socket/path'
PIDFILE = 'pidfile'
def setUp(self):
super(TestMetadataDriverProcess, self).setUp()
mock.patch('eventlet.spawn').start()
ovn_meta_conf.register_meta_conf_opts(meta_conf.SHARED_OPTS, cfg.CONF)
def test_spawn_metadata_proxy(self):
datapath_id = _uuid()
metadata_ns = metadata_agent.NS_PREFIX + datapath_id
ip_class_path = 'neutron.agent.linux.ip_lib.IPWrapper'
cfg.CONF.set_override('metadata_proxy_user', self.EUNAME)
cfg.CONF.set_override('metadata_proxy_group', self.EGNAME)
cfg.CONF.set_override('metadata_proxy_socket', self.METADATA_SOCKET)
cfg.CONF.set_override('debug', True)
agent = metadata_agent.MetadataAgent(cfg.CONF)
with mock.patch(ip_class_path) as ip_mock,\
mock.patch(
'neutron.agent.linux.external_process.'
'ProcessManager.get_pid_file_name',
return_value=self.PIDFILE),\
mock.patch('pwd.getpwnam',
return_value=test_utils.FakeUser(self.EUNAME)),\
mock.patch('grp.getgrnam',
return_value=test_utils.FakeGroup(self.EGNAME)),\
mock.patch('os.makedirs'):
cfg_file = os.path.join(
metadata_driver.HaproxyConfigurator.get_config_path(
cfg.CONF.state_path),
"%s.conf" % datapath_id)
mock_open = self.useFixture(
lib_fixtures.OpenFixture(cfg_file)).mock_open
metadata_driver.MetadataDriver.spawn_monitored_metadata_proxy(
agent._process_monitor,
metadata_ns,
self.METADATA_PORT,
cfg.CONF,
bind_address=self.METADATA_DEFAULT_IP,
network_id=datapath_id)
netns_execute_args = [
'haproxy',
'-f', cfg_file]
cfg_contents = metadata_driver._HAPROXY_CONFIG_TEMPLATE % {
'user': self.EUNAME,
'group': self.EGNAME,
'host': self.METADATA_DEFAULT_IP,
'port': self.METADATA_PORT,
'unix_socket_path': self.METADATA_SOCKET,
'res_type': 'Network',
'res_id': datapath_id,
'pidfile': self.PIDFILE,
'log_level': 'debug'}
mock_open.assert_has_calls([
mock.call(cfg_file, 'w'),
mock.call().write(cfg_contents)],
any_order=True)
ip_mock.assert_has_calls([
mock.call(namespace=metadata_ns),
mock.call().netns.execute(netns_execute_args, addl_env=None,
run_as_root=True)
])
def test_create_config_file_wrong_user(self):
with mock.patch('pwd.getpwnam', side_effect=KeyError):
config = metadata_driver.HaproxyConfigurator(mock.ANY, mock.ANY,
mock.ANY, mock.ANY,
mock.ANY, self.EUNAME,
self.EGNAME, mock.ANY,
mock.ANY)
self.assertRaises(metadata_driver.InvalidUserOrGroupException,
config.create_config_file)
def test_create_config_file_wrong_group(self):
with mock.patch('grp.getgrnam', side_effect=KeyError),\
mock.patch('pwd.getpwnam',
return_value=test_utils.FakeUser(self.EUNAME)):
config = metadata_driver.HaproxyConfigurator(mock.ANY, mock.ANY,
mock.ANY, mock.ANY,
mock.ANY, self.EUNAME,
self.EGNAME, mock.ANY,
mock.ANY)
self.assertRaises(metadata_driver.InvalidUserOrGroupException,
config.create_config_file)