198 lines
8.5 KiB
Python
198 lines
8.5 KiB
Python
# Copyright 2014 OpenStack Foundation.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import os
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import mock
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from neutron_lib import constants
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from neutron_lib import fixture as lib_fixtures
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from oslo_config import cfg
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from oslo_utils import uuidutils
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from neutron.agent.l3 import agent as l3_agent
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from neutron.agent.l3 import router_info
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from neutron.agent.linux import iptables_manager
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from neutron.agent.metadata import driver as metadata_driver
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from neutron.conf.agent import common as agent_config
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from neutron.conf.agent.l3 import config as l3_config
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from neutron.conf.agent.l3 import ha as ha_conf
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from neutron.conf.agent.metadata import config as meta_conf
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from neutron.tests import base
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from neutron.tests.unit.agent.linux import test_utils
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_uuid = uuidutils.generate_uuid
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class TestMetadataDriverRules(base.BaseTestCase):
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def test_metadata_nat_rules(self):
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rules = ('PREROUTING', '-d 169.254.169.254/32 -i qr-+ '
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'-p tcp -m tcp --dport 80 -j REDIRECT --to-ports 9697')
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self.assertEqual(
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[rules],
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metadata_driver.MetadataDriver.metadata_nat_rules(9697))
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def test_metadata_filter_rules(self):
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rules = [('INPUT', '-m mark --mark 0x1/%s -j ACCEPT' %
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constants.ROUTER_MARK_MASK),
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('INPUT', '-p tcp -m tcp --dport 9697 -j DROP')]
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self.assertEqual(
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rules,
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metadata_driver.MetadataDriver.metadata_filter_rules(9697, '0x1'))
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class TestMetadataDriverProcess(base.BaseTestCase):
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EUNAME = 'neutron'
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EGNAME = 'neutron'
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METADATA_DEFAULT_IP = '169.254.169.254'
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METADATA_PORT = 8080
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METADATA_SOCKET = '/socket/path'
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PIDFILE = 'pidfile'
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def setUp(self):
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super(TestMetadataDriverProcess, self).setUp()
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mock.patch('eventlet.spawn').start()
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agent_config.register_interface_driver_opts_helper(cfg.CONF)
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cfg.CONF.set_override('interface_driver',
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'neutron.agent.linux.interface.NullDriver')
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mock.patch('neutron.agent.l3.agent.L3PluginApi').start()
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mock.patch('neutron.agent.l3.ha.AgentMixin'
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'._init_ha_conf_path').start()
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l3_config.register_l3_agent_config_opts(l3_config.OPTS, cfg.CONF)
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ha_conf.register_l3_agent_ha_opts()
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meta_conf.register_meta_conf_opts(meta_conf.SHARED_OPTS, cfg.CONF)
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def test_after_router_updated_called_on_agent_process_update(self):
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with mock.patch.object(metadata_driver, 'after_router_updated') as f,\
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mock.patch.object(router_info.RouterInfo, 'process'):
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agent = l3_agent.L3NATAgent('localhost')
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router_id = _uuid()
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router = {'id': router_id}
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ri = router_info.RouterInfo(mock.Mock(), router_id, router,
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agent.conf, mock.ANY)
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agent.router_info[router_id] = ri
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agent._process_updated_router(router)
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f.assert_called_once_with(
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'router', 'after_update', agent, router=ri)
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def test_after_router_updated_should_not_call_add_metadata_rules(self):
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with mock.patch.object(iptables_manager.IptablesTable,
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'add_rule') as f,\
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mock.patch.object(iptables_manager.IptablesManager,
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'apply'),\
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mock.patch.object(metadata_driver.MetadataDriver,
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'spawn_monitored_metadata_proxy'),\
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mock.patch.object(router_info.RouterInfo, 'process'):
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agent = l3_agent.L3NATAgent('localhost')
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router_id = _uuid()
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router = {'id': router_id}
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ri = router_info.RouterInfo(mock.Mock(), router_id, router,
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agent.conf, mock.ANY)
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agent.router_info[router_id] = ri
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f.reset_mock()
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agent._process_updated_router(router)
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f.assert_not_called()
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def test_spawn_metadata_proxy(self):
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router_id = _uuid()
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router_ns = 'qrouter-%s' % router_id
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ip_class_path = 'neutron.agent.linux.ip_lib.IPWrapper'
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cfg.CONF.set_override('metadata_proxy_user', self.EUNAME)
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cfg.CONF.set_override('metadata_proxy_group', self.EGNAME)
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cfg.CONF.set_override('metadata_proxy_socket', self.METADATA_SOCKET)
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cfg.CONF.set_override('debug', True)
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agent = l3_agent.L3NATAgent('localhost')
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with mock.patch(ip_class_path) as ip_mock,\
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mock.patch(
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'neutron.agent.linux.external_process.'
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'ProcessManager.get_pid_file_name',
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return_value=self.PIDFILE),\
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mock.patch('pwd.getpwnam',
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return_value=test_utils.FakeUser(self.EUNAME)),\
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mock.patch('grp.getgrnam',
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return_value=test_utils.FakeGroup(self.EGNAME)),\
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mock.patch('os.makedirs'):
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cfg_file = os.path.join(
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metadata_driver.HaproxyConfigurator.get_config_path(
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agent.conf.state_path),
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"%s.conf" % router_id)
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mock_open = self.useFixture(
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lib_fixtures.OpenFixture(cfg_file)).mock_open
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agent.metadata_driver.spawn_monitored_metadata_proxy(
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agent.process_monitor,
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router_ns,
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self.METADATA_PORT,
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agent.conf,
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bind_address=self.METADATA_DEFAULT_IP,
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router_id=router_id)
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netns_execute_args = [
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'haproxy',
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'-f', cfg_file]
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log_tag = ("haproxy-" + metadata_driver.METADATA_SERVICE_NAME +
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"-" + router_id)
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cfg_contents = metadata_driver._HAPROXY_CONFIG_TEMPLATE % {
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'user': self.EUNAME,
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'group': self.EGNAME,
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'host': self.METADATA_DEFAULT_IP,
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'port': self.METADATA_PORT,
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'unix_socket_path': self.METADATA_SOCKET,
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'res_type': 'Router',
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'res_id': router_id,
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'pidfile': self.PIDFILE,
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'log_level': 'debug',
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'log_tag': log_tag}
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mock_open.assert_has_calls([
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mock.call(cfg_file, 'w'),
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mock.call().write(cfg_contents)],
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any_order=True)
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ip_mock.assert_has_calls([
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mock.call(namespace=router_ns),
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mock.call().netns.execute(netns_execute_args, addl_env=None,
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run_as_root=True)
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])
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def test_create_config_file_wrong_user(self):
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with mock.patch('pwd.getpwnam', side_effect=KeyError):
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config = metadata_driver.HaproxyConfigurator(_uuid(),
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mock.ANY, mock.ANY,
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mock.ANY, mock.ANY,
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self.EUNAME,
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self.EGNAME,
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mock.ANY, mock.ANY)
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self.assertRaises(metadata_driver.InvalidUserOrGroupException,
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config.create_config_file)
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def test_create_config_file_wrong_group(self):
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with mock.patch('grp.getgrnam', side_effect=KeyError),\
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mock.patch('pwd.getpwnam',
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return_value=test_utils.FakeUser(self.EUNAME)):
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config = metadata_driver.HaproxyConfigurator(_uuid(),
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mock.ANY, mock.ANY,
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mock.ANY, mock.ANY,
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self.EUNAME,
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self.EGNAME,
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mock.ANY, mock.ANY)
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self.assertRaises(metadata_driver.InvalidUserOrGroupException,
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config.create_config_file)
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