x/vmware-nsx
Code Issues Proposed changes
51fc1201fc
vmware-nsx/neutron/tests/unit/test_dhcp_agent.py
Carl Baldwin 8a6c859b13 Remove release_lease from the DHCP driver interface 
Neither the midonet nor the linux dhcp driver needs a call to
release_lease.  Removing this from the driver API simplifies more code
in the DHCP agent.

Change-Id: Ib144b2bf3720b1b999205ace1a7d1ffe5ef3b167
Closes-Bug: #1269505
2014-01-15 17:02:50 +00:00

1492 lines
62 KiB
Python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 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 copy
import os
import sys
import uuid
import eventlet
import mock
from oslo.config import cfg
import testtools
from neutron.agent.common import config
from neutron.agent import dhcp_agent
from neutron.agent.dhcp_agent import DhcpAgentWithStateReport
from neutron.agent.linux import dhcp
from neutron.agent.linux import interface
from neutron.common import constants as const
from neutron.common import exceptions
from neutron.openstack.common.rpc import common
from neutron.tests import base
ROOTDIR = os.path.dirname(os.path.dirname(__file__))
ETCDIR = os.path.join(ROOTDIR, 'etc')
HOSTNAME = 'hostname'
dev_man = dhcp.DeviceManager
rpc_api = dhcp_agent.DhcpPluginApi
DEVICE_MANAGER = '%s.%s' % (dev_man.__module__, dev_man.__name__)
DHCP_PLUGIN = '%s.%s' % (rpc_api.__module__, rpc_api.__name__)
def etcdir(*p):
return os.path.join(ETCDIR, *p)
fake_tenant_id = 'aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa'
fake_subnet1_allocation_pools = dhcp.DictModel(dict(id='', start='172.9.9.2',
end='172.9.9.254'))
fake_subnet1 = dhcp.DictModel(dict(id='bbbbbbbb-bbbb-bbbb-bbbbbbbbbbbb',
network_id='12345678-1234-5678-1234567890ab',
cidr='172.9.9.0/24', enable_dhcp=True, name='',
tenant_id=fake_tenant_id,
gateway_ip='172.9.9.1', host_routes=[],
dns_nameservers=[], ip_version=4,
allocation_pools=fake_subnet1_allocation_pools))
fake_subnet2_allocation_pools = dhcp.DictModel(dict(id='', start='172.9.8.2',
end='172.9.8.254'))
fake_subnet2 = dhcp.DictModel(dict(id='dddddddd-dddd-dddd-dddddddddddd',
network_id='12345678-1234-5678-1234567890ab',
cidr='172.9.8.0/24', enable_dhcp=False, name='',
tenant_id=fake_tenant_id, gateway_ip='172.9.8.1',
host_routes=[], dns_nameservers=[], ip_version=4,
allocation_pools=fake_subnet2_allocation_pools))
fake_subnet3 = dhcp.DictModel(dict(id='bbbbbbbb-1111-2222-bbbbbbbbbbbb',
network_id='12345678-1234-5678-1234567890ab',
cidr='192.168.1.1/24', enable_dhcp=True))
fake_meta_subnet = dhcp.DictModel(dict(id='bbbbbbbb-1111-2222-bbbbbbbbbbbb',
network_id='12345678-1234-5678-1234567890ab',
cidr='169.254.169.252/30',
gateway_ip='169.254.169.253',
enable_dhcp=True))
fake_fixed_ip1 = dhcp.DictModel(dict(id='', subnet_id=fake_subnet1.id,
ip_address='172.9.9.9'))
fake_meta_fixed_ip = dhcp.DictModel(dict(id='', subnet=fake_meta_subnet,
ip_address='169.254.169.254'))
fake_allocation_pool_subnet1 = dhcp.DictModel(dict(id='', start='172.9.9.2',
end='172.9.9.254'))
fake_port1 = dhcp.DictModel(dict(id='12345678-1234-aaaa-1234567890ab',
device_id='dhcp-12345678-1234-aaaa-1234567890ab',
allocation_pools=fake_subnet1_allocation_pools,
mac_address='aa:bb:cc:dd:ee:ff',
network_id='12345678-1234-5678-1234567890ab',
fixed_ips=[fake_fixed_ip1]))
fake_port2 = dhcp.DictModel(dict(id='12345678-1234-aaaa-123456789000',
mac_address='aa:bb:cc:dd:ee:99',
network_id='12345678-1234-5678-1234567890ab',
fixed_ips=[]))
fake_meta_port = dhcp.DictModel(dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff',
network_id='12345678-1234-5678-1234567890ab',
device_owner=const.DEVICE_OWNER_ROUTER_INTF,
device_id='forzanapoli',
fixed_ips=[fake_meta_fixed_ip]))
fake_network = dhcp.NetModel(True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[fake_subnet1, fake_subnet2],
ports=[fake_port1]))
fake_meta_network = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[fake_meta_subnet],
ports=[fake_meta_port]))
fake_down_network = dhcp.NetModel(
True, dict(id='12345678-dddd-dddd-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=False,
subnets=[],
ports=[]))
class TestDhcpAgent(base.BaseTestCase):
def setUp(self):
super(TestDhcpAgent, self).setUp()
dhcp_agent.register_options()
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
self.driver_cls_p = mock.patch(
'neutron.agent.dhcp_agent.importutils.import_class')
self.driver = mock.Mock(name='driver')
self.driver.existing_dhcp_networks.return_value = []
self.driver_cls = self.driver_cls_p.start()
self.driver_cls.return_value = self.driver
self.mock_makedirs_p = mock.patch("os.makedirs")
self.mock_makedirs = self.mock_makedirs_p.start()
self.addCleanup(mock.patch.stopall)
def test_dhcp_agent_manager(self):
state_rpc_str = 'neutron.agent.rpc.PluginReportStateAPI'
with mock.patch.object(DhcpAgentWithStateReport,
'sync_state',
autospec=True) as mock_sync_state:
with mock.patch.object(DhcpAgentWithStateReport,
'periodic_resync',
autospec=True) as mock_periodic_resync:
with mock.patch(state_rpc_str) as state_rpc:
with mock.patch.object(sys, 'argv') as sys_argv:
sys_argv.return_value = [
'dhcp', '--config-file',
etcdir('neutron.conf.test')]
cfg.CONF.register_opts(dhcp_agent.DhcpAgent.OPTS)
config.register_agent_state_opts_helper(cfg.CONF)
config.register_root_helper(cfg.CONF)
cfg.CONF.register_opts(dhcp.OPTS)
cfg.CONF.register_opts(interface.OPTS)
cfg.CONF(project='neutron')
agent_mgr = DhcpAgentWithStateReport('testhost')
eventlet.greenthread.sleep(1)
agent_mgr.after_start()
mock_sync_state.assert_called_once_with(agent_mgr)
mock_periodic_resync.assert_called_once_with(agent_mgr)
state_rpc.assert_has_calls(
[mock.call(mock.ANY),
mock.call().report_state(mock.ANY, mock.ANY,
mock.ANY)])
def test_dhcp_agent_main_agent_manager(self):
logging_str = 'neutron.agent.common.config.setup_logging'
launcher_str = 'neutron.openstack.common.service.ServiceLauncher'
with mock.patch(logging_str):
with mock.patch.object(sys, 'argv') as sys_argv:
with mock.patch(launcher_str) as launcher:
sys_argv.return_value = ['dhcp', '--config-file',
etcdir('neutron.conf.test')]
dhcp_agent.main()
launcher.assert_has_calls(
[mock.call(), mock.call().launch_service(mock.ANY),
mock.call().wait()])
def test_run_completes_single_pass(self):
with mock.patch(DEVICE_MANAGER):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
attrs_to_mock = dict(
[(a, mock.DEFAULT) for a in
['sync_state', 'periodic_resync']])
with mock.patch.multiple(dhcp, **attrs_to_mock) as mocks:
dhcp.run()
mocks['sync_state'].assert_called_once_with()
mocks['periodic_resync'].assert_called_once_with()
def test_call_driver(self):
network = mock.Mock()
network.id = '1'
dhcp = dhcp_agent.DhcpAgent(cfg.CONF)
self.assertTrue(dhcp.call_driver('foo', network))
self.driver.assert_called_once_with(cfg.CONF,
mock.ANY,
'sudo',
mock.ANY,
mock.ANY)
def _test_call_driver_failure(self, exc=None,
trace_level='exception', expected_sync=True):
network = mock.Mock()
network.id = '1'
self.driver.return_value.foo.side_effect = exc or Exception
with mock.patch.object(dhcp_agent.LOG, trace_level) as log:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
self.assertIsNone(dhcp.call_driver('foo', network))
self.driver.assert_called_once_with(cfg.CONF,
mock.ANY,
'sudo',
mock.ANY,
mock.ANY)
self.assertEqual(log.call_count, 1)
self.assertEqual(expected_sync, dhcp.needs_resync)
def test_call_driver_failure(self):
self._test_call_driver_failure()
def test_call_driver_remote_error_net_not_found(self):
self._test_call_driver_failure(
exc=common.RemoteError(exc_type='NetworkNotFound'),
trace_level='warning')
def test_call_driver_network_not_found(self):
self._test_call_driver_failure(
exc=exceptions.NetworkNotFound(net_id='1'),
trace_level='warning')
def test_call_driver_conflict(self):
self._test_call_driver_failure(
exc=exceptions.Conflict(),
trace_level='warning',
expected_sync=False)
def _test_sync_state_helper(self, known_networks, active_networks):
with mock.patch(DHCP_PLUGIN) as plug:
mock_plugin = mock.Mock()
mock_plugin.get_active_networks_info.return_value = active_networks
plug.return_value = mock_plugin
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
attrs_to_mock = dict(
[(a, mock.DEFAULT) for a in
['refresh_dhcp_helper', 'disable_dhcp_helper', 'cache']])
with mock.patch.multiple(dhcp, **attrs_to_mock) as mocks:
mocks['cache'].get_network_ids.return_value = known_networks
dhcp.sync_state()
exp_refresh = [
mock.call(net_id) for net_id in active_networks]
diff = set(known_networks) - set(active_networks)
exp_disable = [mock.call(net_id) for net_id in diff]
mocks['cache'].assert_has_calls([mock.call.get_network_ids()])
mocks['refresh_dhcp_helper'].assert_has_called(exp_refresh)
mocks['disable_dhcp_helper'].assert_has_called(exp_disable)
def test_sync_state_initial(self):
self._test_sync_state_helper([], ['a'])
def test_sync_state_same(self):
self._test_sync_state_helper(['a'], ['a'])
def test_sync_state_disabled_net(self):
self._test_sync_state_helper(['b'], ['a'])
def test_sync_state_waitall(self):
class mockNetwork():
id = '0'
admin_state_up = True
subnets = []
def __init__(self, id):
self.id = id
with mock.patch.object(dhcp_agent.eventlet.GreenPool, 'waitall') as w:
active_networks = [mockNetwork('1'), mockNetwork('2'),
mockNetwork('3'), mockNetwork('4'),
mockNetwork('5')]
known_networks = ['1', '2', '3', '4', '5']
self._test_sync_state_helper(known_networks, active_networks)
w.assert_called_once_with()
def test_sync_state_plugin_error(self):
with mock.patch(DHCP_PLUGIN) as plug:
mock_plugin = mock.Mock()
mock_plugin.get_active_networks_info.side_effect = Exception
plug.return_value = mock_plugin
with mock.patch.object(dhcp_agent.LOG, 'exception') as log:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.sync_state()
self.assertTrue(log.called)
self.assertTrue(dhcp.needs_resync)
def test_periodic_resync(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
with mock.patch.object(dhcp_agent.eventlet, 'spawn') as spawn:
dhcp.periodic_resync()
spawn.assert_called_once_with(dhcp._periodic_resync_helper)
def test_periodoc_resync_helper(self):
with mock.patch.object(dhcp_agent.eventlet, 'sleep') as sleep:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.needs_resync = True
with mock.patch.object(dhcp, 'sync_state') as sync_state:
sync_state.side_effect = RuntimeError
with testtools.ExpectedException(RuntimeError):
dhcp._periodic_resync_helper()
sync_state.assert_called_once_with()
sleep.assert_called_once_with(dhcp.conf.resync_interval)
self.assertFalse(dhcp.needs_resync)
def test_populate_cache_on_start_without_active_networks_support(self):
# emul dhcp driver that doesn't support retrieving of active networks
self.driver.existing_dhcp_networks.side_effect = NotImplementedError
with mock.patch.object(dhcp_agent.LOG, 'debug') as log:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
self.driver.existing_dhcp_networks.assert_called_once_with(
dhcp.conf,
cfg.CONF.root_helper
)
self.assertFalse(dhcp.cache.get_network_ids())
self.assertTrue(log.called)
def test_populate_cache_on_start(self):
networks = ['aaa', 'bbb']
self.driver.existing_dhcp_networks.return_value = networks
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
self.driver.existing_dhcp_networks.assert_called_once_with(
dhcp.conf,
cfg.CONF.root_helper
)
self.assertEqual(set(networks), set(dhcp.cache.get_network_ids()))
def test_none_interface_driver(self):
cfg.CONF.set_override('interface_driver', None)
with mock.patch.object(dhcp, 'LOG') as log:
self.assertRaises(SystemExit, dhcp.DeviceManager,
cfg.CONF, 'sudo', None)
msg = 'An interface driver must be specified'
log.error.assert_called_once_with(msg)
def test_nonexistent_interface_driver(self):
# Temporarily turn off mock, so could use the real import_class
# to import interface_driver.
self.driver_cls_p.stop()
self.addCleanup(self.driver_cls_p.start)
cfg.CONF.set_override('interface_driver', 'foo')
with mock.patch.object(dhcp, 'LOG') as log:
self.assertRaises(SystemExit, dhcp.DeviceManager,
cfg.CONF, 'sudo', None)
log.error.assert_called_once()
class TestLogArgs(base.BaseTestCase):
def test_log_args_without_log_dir_and_file(self):
conf_dict = {'debug': True,
'verbose': False,
'log_dir': None,
'log_file': None,
'use_syslog': True,
'syslog_log_facility': 'LOG_USER'}
conf = dhcp.DictModel(conf_dict)
expected_args = ['--debug',
'--use-syslog',
'--syslog-log-facility=LOG_USER']
args = config.get_log_args(conf, 'log_file_name')
self.assertEqual(expected_args, args)
def test_log_args_without_log_file(self):
conf_dict = {'debug': True,
'verbose': True,
'log_dir': '/etc/tests',
'log_file': None,
'use_syslog': False,
'syslog_log_facility': 'LOG_USER'}
conf = dhcp.DictModel(conf_dict)
expected_args = ['--debug',
'--verbose',
'--log-file=log_file_name',
'--log-dir=/etc/tests']
args = config.get_log_args(conf, 'log_file_name')
self.assertEqual(expected_args, args)
def test_log_args_with_log_dir_and_file(self):
conf_dict = {'debug': True,
'verbose': False,
'log_dir': '/etc/tests',
'log_file': 'tests/filelog',
'use_syslog': False,
'syslog_log_facility': 'LOG_USER'}
conf = dhcp.DictModel(conf_dict)
expected_args = ['--debug',
'--log-file=log_file_name',
'--log-dir=/etc/tests/tests']
args = config.get_log_args(conf, 'log_file_name')
self.assertEqual(expected_args, args)
def test_log_args_without_log_dir(self):
conf_dict = {'debug': True,
'verbose': False,
'log_file': 'tests/filelog',
'log_dir': None,
'use_syslog': False,
'syslog_log_facility': 'LOG_USER'}
conf = dhcp.DictModel(conf_dict)
expected_args = ['--debug',
'--log-file=log_file_name',
'--log-dir=tests']
args = config.get_log_args(conf, 'log_file_name')
self.assertEqual(expected_args, args)
def test_log_args_with_filelog_and_syslog(self):
conf_dict = {'debug': True,
'verbose': True,
'log_file': 'tests/filelog',
'log_dir': '/etc/tests',
'use_syslog': True,
'syslog_log_facility': 'LOG_USER'}
conf = dhcp.DictModel(conf_dict)
expected_args = ['--debug',
'--verbose',
'--log-file=log_file_name',
'--log-dir=/etc/tests/tests']
args = config.get_log_args(conf, 'log_file_name')
self.assertEqual(expected_args, args)
class TestDhcpAgentEventHandler(base.BaseTestCase):
def setUp(self):
super(TestDhcpAgentEventHandler, self).setUp()
cfg.CONF.register_opts(dhcp.OPTS)
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
config.register_root_helper(cfg.CONF)
cfg.CONF.register_opts(dhcp_agent.DhcpAgent.OPTS)
self.plugin_p = mock.patch(DHCP_PLUGIN)
plugin_cls = self.plugin_p.start()
self.plugin = mock.Mock()
plugin_cls.return_value = self.plugin
self.cache_p = mock.patch('neutron.agent.dhcp_agent.NetworkCache')
cache_cls = self.cache_p.start()
self.cache = mock.Mock()
cache_cls.return_value = self.cache
self.mock_makedirs_p = mock.patch("os.makedirs")
self.mock_makedirs = self.mock_makedirs_p.start()
self.mock_init_p = mock.patch('neutron.agent.dhcp_agent.'
'DhcpAgent._populate_networks_cache')
self.mock_init = self.mock_init_p.start()
with mock.patch.object(dhcp.Dnsmasq,
'check_version') as check_v:
check_v.return_value = dhcp.Dnsmasq.MINIMUM_VERSION
self.dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
self.call_driver_p = mock.patch.object(self.dhcp, 'call_driver')
self.call_driver = self.call_driver_p.start()
self.external_process_p = mock.patch(
'neutron.agent.linux.external_process.ProcessManager'
)
self.external_process = self.external_process_p.start()
def tearDown(self):
self.external_process_p.stop()
self.call_driver_p.stop()
self.cache_p.stop()
self.plugin_p.stop()
self.mock_makedirs_p.stop()
self.mock_init_p.stop()
cfg.CONF.reset()
super(TestDhcpAgentEventHandler, self).tearDown()
def _enable_dhcp_helper(self, isolated_metadata=False):
if isolated_metadata:
cfg.CONF.set_override('enable_isolated_metadata', True)
self.plugin.get_network_info.return_value = fake_network
self.dhcp.enable_dhcp_helper(fake_network.id)
self.plugin.assert_has_calls(
[mock.call.get_network_info(fake_network.id)])
self.call_driver.assert_called_once_with('enable', fake_network)
self.cache.assert_has_calls([mock.call.put(fake_network)])
if isolated_metadata:
self.external_process.assert_has_calls([
mock.call(
cfg.CONF,
'12345678-1234-5678-1234567890ab',
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().enable(mock.ANY)
])
else:
self.assertFalse(self.external_process.call_count)
def test_enable_dhcp_helper_enable_isolated_metadata(self):
self._enable_dhcp_helper(isolated_metadata=True)
def test_enable_dhcp_helper(self):
self._enable_dhcp_helper()
def test_enable_dhcp_helper_down_network(self):
self.plugin.get_network_info.return_value = fake_down_network
self.dhcp.enable_dhcp_helper(fake_down_network.id)
self.plugin.assert_has_calls(
[mock.call.get_network_info(fake_down_network.id)])
self.assertFalse(self.call_driver.called)
self.assertFalse(self.cache.called)
self.assertFalse(self.external_process.called)
def test_enable_dhcp_helper_network_none(self):
self.plugin.get_network_info.return_value = None
with mock.patch.object(dhcp_agent.LOG, 'warn') as log:
self.dhcp.enable_dhcp_helper('fake_id')
self.plugin.assert_has_calls(
[mock.call.get_network_info('fake_id')])
self.assertFalse(self.call_driver.called)
self.assertTrue(log.called)
self.assertFalse(self.dhcp.needs_resync)
def test_enable_dhcp_helper_exception_during_rpc(self):
self.plugin.get_network_info.side_effect = Exception
with mock.patch.object(dhcp_agent.LOG, 'exception') as log:
self.dhcp.enable_dhcp_helper(fake_network.id)
self.plugin.assert_has_calls(
[mock.call.get_network_info(fake_network.id)])
self.assertFalse(self.call_driver.called)
self.assertTrue(log.called)
self.assertTrue(self.dhcp.needs_resync)
self.assertFalse(self.cache.called)
self.assertFalse(self.external_process.called)
def test_enable_dhcp_helper_driver_failure(self):
self.plugin.get_network_info.return_value = fake_network
self.call_driver.return_value = False
self.dhcp.enable_dhcp_helper(fake_network.id)
self.plugin.assert_has_calls(
[mock.call.get_network_info(fake_network.id)])
self.call_driver.assert_called_once_with('enable', fake_network)
self.assertFalse(self.cache.called)
self.assertFalse(self.external_process.called)
def _disable_dhcp_helper_known_network(self, isolated_metadata=False):
if isolated_metadata:
cfg.CONF.set_override('enable_isolated_metadata', True)
self.cache.get_network_by_id.return_value = fake_network
self.dhcp.disable_dhcp_helper(fake_network.id)
self.cache.assert_has_calls(
[mock.call.get_network_by_id(fake_network.id)])
self.call_driver.assert_called_once_with('disable', fake_network)
if isolated_metadata:
self.external_process.assert_has_calls([
mock.call(
cfg.CONF,
'12345678-1234-5678-1234567890ab',
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().disable()
])
else:
self.assertFalse(self.external_process.call_count)
def test_disable_dhcp_helper_known_network_isolated_metadata(self):
self._disable_dhcp_helper_known_network(isolated_metadata=True)
def test_disable_dhcp_helper_known_network(self):
self._disable_dhcp_helper_known_network()
def test_disable_dhcp_helper_unknown_network(self):
self.cache.get_network_by_id.return_value = None
self.dhcp.disable_dhcp_helper('abcdef')
self.cache.assert_has_calls(
[mock.call.get_network_by_id('abcdef')])
self.assertEqual(0, self.call_driver.call_count)
self.assertFalse(self.external_process.called)
def _disable_dhcp_helper_driver_failure(self, isolated_metadata=False):
if isolated_metadata:
cfg.CONF.set_override('enable_isolated_metadata', True)
self.cache.get_network_by_id.return_value = fake_network
self.call_driver.return_value = False
self.dhcp.disable_dhcp_helper(fake_network.id)
self.cache.assert_has_calls(
[mock.call.get_network_by_id(fake_network.id)])
self.call_driver.assert_called_once_with('disable', fake_network)
self.cache.assert_has_calls(
[mock.call.get_network_by_id(fake_network.id)])
if isolated_metadata:
self.external_process.assert_has_calls([
mock.call(
cfg.CONF,
'12345678-1234-5678-1234567890ab',
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().disable()
])
else:
self.assertFalse(self.external_process.call_count)
def test_disable_dhcp_helper_driver_failure_isolated_metadata(self):
self._disable_dhcp_helper_driver_failure(isolated_metadata=True)
def test_disable_dhcp_helper_driver_failure(self):
self._disable_dhcp_helper_driver_failure()
def test_enable_isolated_metadata_proxy(self):
class_path = 'neutron.agent.linux.external_process.ProcessManager'
with mock.patch(class_path) as ext_process:
self.dhcp.enable_isolated_metadata_proxy(fake_network)
ext_process.assert_has_calls([
mock.call(
cfg.CONF,
'12345678-1234-5678-1234567890ab',
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().enable(mock.ANY)
])
def test_disable_isolated_metadata_proxy(self):
class_path = 'neutron.agent.linux.external_process.ProcessManager'
with mock.patch(class_path) as ext_process:
self.dhcp.disable_isolated_metadata_proxy(fake_network)
ext_process.assert_has_calls([
mock.call(
cfg.CONF,
'12345678-1234-5678-1234567890ab',
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().disable()
])
def test_enable_isolated_metadata_proxy_with_metadata_network(self):
cfg.CONF.set_override('enable_metadata_network', True)
cfg.CONF.set_override('debug', True)
cfg.CONF.set_override('log_file', 'test.log')
class_path = 'neutron.agent.linux.ip_lib.IPWrapper'
self.external_process_p.stop()
# Ensure the mock is restored if this test fail
try:
with mock.patch(class_path) as ip_wrapper:
self.dhcp.enable_isolated_metadata_proxy(fake_meta_network)
ip_wrapper.assert_has_calls([mock.call(
'sudo',
'qdhcp-12345678-1234-5678-1234567890ab'),
mock.call().netns.execute([
'neutron-ns-metadata-proxy',
mock.ANY,
mock.ANY,
'--router_id=forzanapoli',
mock.ANY,
mock.ANY,
'--debug',
('--log-file=neutron-ns-metadata-proxy-%s.log' %
fake_meta_network.id)])
])
finally:
self.external_process_p.start()
def test_network_create_end(self):
payload = dict(network=dict(id=fake_network.id))
with mock.patch.object(self.dhcp, 'enable_dhcp_helper') as enable:
self.dhcp.network_create_end(None, payload)
enable.assertCalledOnceWith(fake_network.id)
def test_network_update_end_admin_state_up(self):
payload = dict(network=dict(id=fake_network.id, admin_state_up=True))
with mock.patch.object(self.dhcp, 'enable_dhcp_helper') as enable:
self.dhcp.network_update_end(None, payload)
enable.assertCalledOnceWith(fake_network.id)
def test_network_update_end_admin_state_down(self):
payload = dict(network=dict(id=fake_network.id, admin_state_up=False))
with mock.patch.object(self.dhcp, 'disable_dhcp_helper') as disable:
self.dhcp.network_update_end(None, payload)
disable.assertCalledOnceWith(fake_network.id)
def test_network_delete_end(self):
payload = dict(network_id=fake_network.id)
with mock.patch.object(self.dhcp, 'disable_dhcp_helper') as disable:
self.dhcp.network_delete_end(None, payload)
disable.assertCalledOnceWith(fake_network.id)
def test_refresh_dhcp_helper_no_dhcp_enabled_networks(self):
network = dhcp.NetModel(True, dict(id='net-id',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[],
ports=[]))
self.cache.get_network_by_id.return_value = network
self.plugin.get_network_info.return_value = network
with mock.patch.object(self.dhcp, 'disable_dhcp_helper') as disable:
self.dhcp.refresh_dhcp_helper(network.id)
disable.called_once_with_args(network.id)
self.assertFalse(self.cache.called)
self.assertFalse(self.call_driver.called)
self.cache.assert_has_calls(
[mock.call.get_network_by_id('net-id')])
def test_refresh_dhcp_helper_exception_during_rpc(self):
network = dhcp.NetModel(True, dict(id='net-id',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
admin_state_up=True,
subnets=[],
ports=[]))
self.cache.get_network_by_id.return_value = network
self.plugin.get_network_info.side_effect = Exception
with mock.patch.object(dhcp_agent.LOG, 'exception') as log:
self.dhcp.refresh_dhcp_helper(network.id)
self.assertFalse(self.call_driver.called)
self.cache.assert_has_calls(
[mock.call.get_network_by_id('net-id')])
self.assertTrue(log.called)
self.assertTrue(self.dhcp.needs_resync)
def test_subnet_update_end(self):
payload = dict(subnet=dict(network_id=fake_network.id))
self.cache.get_network_by_id.return_value = fake_network
self.plugin.get_network_info.return_value = fake_network
self.dhcp.subnet_update_end(None, payload)
self.cache.assert_has_calls([mock.call.put(fake_network)])
self.call_driver.assert_called_once_with('reload_allocations',
fake_network)
def test_subnet_update_end_restart(self):
new_state = dhcp.NetModel(True, dict(id=fake_network.id,
tenant_id=fake_network.tenant_id,
admin_state_up=True,
subnets=[fake_subnet1, fake_subnet3],
ports=[fake_port1]))
payload = dict(subnet=dict(network_id=fake_network.id))
self.cache.get_network_by_id.return_value = fake_network
self.plugin.get_network_info.return_value = new_state
self.dhcp.subnet_update_end(None, payload)
self.cache.assert_has_calls([mock.call.put(new_state)])
self.call_driver.assert_called_once_with('restart',
new_state)
def test_subnet_update_end_delete_payload(self):
prev_state = dhcp.NetModel(True, dict(id=fake_network.id,
tenant_id=fake_network.tenant_id,
admin_state_up=True,
subnets=[fake_subnet1, fake_subnet3],
ports=[fake_port1]))
payload = dict(subnet_id=fake_subnet1.id)
self.cache.get_network_by_subnet_id.return_value = prev_state
self.cache.get_network_by_id.return_value = prev_state
self.plugin.get_network_info.return_value = fake_network
self.dhcp.subnet_delete_end(None, payload)
self.cache.assert_has_calls([
mock.call.get_network_by_subnet_id(
'bbbbbbbb-bbbb-bbbb-bbbbbbbbbbbb'),
mock.call.get_network_by_id('12345678-1234-5678-1234567890ab'),
mock.call.put(fake_network)])
self.call_driver.assert_called_once_with('restart',
fake_network)
def test_port_update_end(self):
payload = dict(port=vars(fake_port2))
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port2
self.dhcp.port_update_end(None, payload)
self.cache.assert_has_calls(
[mock.call.get_network_by_id(fake_port2.network_id),
mock.call.put_port(mock.ANY)])
self.call_driver.assert_called_once_with('reload_allocations',
fake_network)
def test_port_update_change_ip_on_port(self):
payload = dict(port=vars(fake_port1))
self.cache.get_network_by_id.return_value = fake_network
updated_fake_port1 = copy.deepcopy(fake_port1)
updated_fake_port1.fixed_ips[0].ip_address = '172.9.9.99'
self.cache.get_port_by_id.return_value = updated_fake_port1
self.dhcp.port_update_end(None, payload)
self.cache.assert_has_calls(
[mock.call.get_network_by_id(fake_port1.network_id),
mock.call.put_port(mock.ANY)])
self.call_driver.assert_has_calls(
[mock.call.call_driver('reload_allocations', fake_network)])
def test_port_delete_end(self):
payload = dict(port_id=fake_port2.id)
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port2
self.dhcp.port_delete_end(None, payload)
self.cache.assert_has_calls(
[mock.call.get_port_by_id(fake_port2.id),
mock.call.get_network_by_id(fake_network.id),
mock.call.remove_port(fake_port2)])
self.call_driver.assert_has_calls(
[mock.call.call_driver('reload_allocations', fake_network)])
def test_port_delete_end_unknown_port(self):
payload = dict(port_id='unknown')
self.cache.get_port_by_id.return_value = None
self.dhcp.port_delete_end(None, payload)
self.cache.assert_has_calls([mock.call.get_port_by_id('unknown')])
self.assertEqual(self.call_driver.call_count, 0)
class TestDhcpPluginApiProxy(base.BaseTestCase):
def setUp(self):
super(TestDhcpPluginApiProxy, self).setUp()
self.proxy = dhcp_agent.DhcpPluginApi('foo', {}, None)
self.proxy.host = 'foo'
self.call_p = mock.patch.object(self.proxy, 'call')
self.call = self.call_p.start()
self.make_msg_p = mock.patch.object(self.proxy, 'make_msg')
self.make_msg = self.make_msg_p.start()
def tearDown(self):
self.make_msg_p.stop()
self.call_p.stop()
super(TestDhcpPluginApiProxy, self).tearDown()
def test_get_network_info(self):
self.call.return_value = dict(a=1)
retval = self.proxy.get_network_info('netid')
self.assertEqual(retval.a, 1)
self.assertTrue(self.call.called)
self.make_msg.assert_called_once_with('get_network_info',
network_id='netid',
host='foo')
def test_get_dhcp_port(self):
self.call.return_value = dict(a=1)
retval = self.proxy.get_dhcp_port('netid', 'devid')
self.assertEqual(retval.a, 1)
self.assertTrue(self.call.called)
self.make_msg.assert_called_once_with('get_dhcp_port',
network_id='netid',
device_id='devid',
host='foo')
def test_get_dhcp_port_none(self):
self.call.return_value = None
self.assertIsNone(self.proxy.get_dhcp_port('netid', 'devid'))
def test_get_active_networks_info(self):
self.proxy.get_active_networks_info()
self.make_msg.assert_called_once_with('get_active_networks_info',
host='foo')
def test_create_dhcp_port(self):
port_body = (
{'port':
{'name': '', 'admin_state_up': True,
'network_id': fake_network.id,
'tenant_id': fake_network.tenant_id,
'fixed_ips': [{'subnet_id': fake_fixed_ip1.subnet_id}],
'device_id': mock.ANY}})
self.proxy.create_dhcp_port(port_body)
self.make_msg.assert_called_once_with('create_dhcp_port',
port=port_body,
host='foo')
def test_create_dhcp_port_none(self):
self.call.return_value = None
port_body = (
{'port':
{'name': '', 'admin_state_up': True,
'network_id': fake_network.id,
'tenant_id': fake_network.tenant_id,
'fixed_ips': [{'subnet_id': fake_fixed_ip1.subnet_id}],
'device_id': mock.ANY}})
self.assertIsNone(self.proxy.create_dhcp_port(port_body))
def test_update_dhcp_port_none(self):
self.call.return_value = None
port_body = {'port': {'fixed_ips':
[{'subnet_id': fake_fixed_ip1.subnet_id}]}}
self.assertIsNone(self.proxy.update_dhcp_port(fake_port1.id,
port_body))
def test_update_dhcp_port(self):
port_body = {'port': {'fixed_ips':
[{'subnet_id': fake_fixed_ip1.subnet_id}]}}
self.proxy.update_dhcp_port(fake_port1.id, port_body)
self.make_msg.assert_called_once_with('update_dhcp_port',
port_id=fake_port1.id,
port=port_body,
host='foo')
def test_release_dhcp_port(self):
self.proxy.release_dhcp_port('netid', 'devid')
self.assertTrue(self.call.called)
self.make_msg.assert_called_once_with('release_dhcp_port',
network_id='netid',
device_id='devid',
host='foo')
def test_release_port_fixed_ip(self):
self.proxy.release_port_fixed_ip('netid', 'devid', 'subid')
self.assertTrue(self.call.called)
self.make_msg.assert_called_once_with('release_port_fixed_ip',
network_id='netid',
subnet_id='subid',
device_id='devid',
host='foo')
class TestNetworkCache(base.BaseTestCase):
def test_put_network(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.cache,
{fake_network.id: fake_network})
self.assertEqual(nc.subnet_lookup,
{fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id})
self.assertEqual(nc.port_lookup,
{fake_port1.id: fake_network.id})
def test_put_network_existing(self):
prev_network_info = mock.Mock()
nc = dhcp_agent.NetworkCache()
with mock.patch.object(nc, 'remove') as remove:
nc.cache[fake_network.id] = prev_network_info
nc.put(fake_network)
remove.assert_called_once_with(prev_network_info)
self.assertEqual(nc.cache,
{fake_network.id: fake_network})
self.assertEqual(nc.subnet_lookup,
{fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id})
self.assertEqual(nc.port_lookup,
{fake_port1.id: fake_network.id})
def test_remove_network(self):
nc = dhcp_agent.NetworkCache()
nc.cache = {fake_network.id: fake_network}
nc.subnet_lookup = {fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id}
nc.port_lookup = {fake_port1.id: fake_network.id}
nc.remove(fake_network)
self.assertEqual(len(nc.cache), 0)
self.assertEqual(len(nc.subnet_lookup), 0)
self.assertEqual(len(nc.port_lookup), 0)
def test_get_network_by_id(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.get_network_by_id(fake_network.id), fake_network)
def test_get_network_ids(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.get_network_ids(), [fake_network.id])
def test_get_network_by_subnet_id(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.get_network_by_subnet_id(fake_subnet1.id),
fake_network)
def test_get_network_by_port_id(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.get_network_by_port_id(fake_port1.id),
fake_network)
def test_put_port(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
subnets=[fake_subnet1],
ports=[fake_port1]))
nc = dhcp_agent.NetworkCache()
nc.put(fake_net)
nc.put_port(fake_port2)
self.assertEqual(len(nc.port_lookup), 2)
self.assertIn(fake_port2, fake_net.ports)
def test_put_port_existing(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
subnets=[fake_subnet1],
ports=[fake_port1, fake_port2]))
nc = dhcp_agent.NetworkCache()
nc.put(fake_net)
nc.put_port(fake_port2)
self.assertEqual(len(nc.port_lookup), 2)
self.assertIn(fake_port2, fake_net.ports)
def test_remove_port_existing(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa',
subnets=[fake_subnet1],
ports=[fake_port1, fake_port2]))
nc = dhcp_agent.NetworkCache()
nc.put(fake_net)
nc.remove_port(fake_port2)
self.assertEqual(len(nc.port_lookup), 1)
self.assertNotIn(fake_port2, fake_net.ports)
def test_get_port_by_id(self):
nc = dhcp_agent.NetworkCache()
nc.put(fake_network)
self.assertEqual(nc.get_port_by_id(fake_port1.id), fake_port1)
class FakePort1:
id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee'
class FakeV4Subnet:
id = 'dddddddd-dddd-dddd-dddd-dddddddddddd'
ip_version = 4
cidr = '192.168.0.0/24'
gateway_ip = '192.168.0.1'
enable_dhcp = True
class FakeV4SubnetNoGateway:
id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee'
ip_version = 4
cidr = '192.168.1.0/24'
gateway_ip = None
enable_dhcp = True
class FakeV4Network:
id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
subnets = [FakeV4Subnet()]
ports = [FakePort1()]
class FakeV4NetworkNoSubnet:
id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
subnets = []
ports = []
class FakeV4NetworkNoGateway:
id = 'cccccccc-cccc-cccc-cccc-cccccccccccc'
subnets = [FakeV4SubnetNoGateway()]
ports = [FakePort1()]
class TestDeviceManager(base.BaseTestCase):
def setUp(self):
super(TestDeviceManager, self).setUp()
cfg.CONF.register_opts(dhcp_agent.DhcpAgent.OPTS)
cfg.CONF.register_opts(dhcp.OPTS)
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
config.register_root_helper(cfg.CONF)
cfg.CONF.set_override('use_namespaces', True)
cfg.CONF.set_override('enable_isolated_metadata', True)
self.device_exists_p = mock.patch(
'neutron.agent.linux.ip_lib.device_exists')
self.device_exists = self.device_exists_p.start()
self.dvr_cls_p = mock.patch('neutron.agent.linux.interface.NullDriver')
self.iproute_cls_p = mock.patch('neutron.agent.linux.'
'ip_lib.IpRouteCommand')
driver_cls = self.dvr_cls_p.start()
iproute_cls = self.iproute_cls_p.start()
self.mock_driver = mock.MagicMock()
self.mock_driver.DEV_NAME_LEN = (
interface.LinuxInterfaceDriver.DEV_NAME_LEN)
self.mock_iproute = mock.MagicMock()
driver_cls.return_value = self.mock_driver
iproute_cls.return_value = self.mock_iproute
def tearDown(self):
self.dvr_cls_p.stop()
self.device_exists_p.stop()
self.iproute_cls_p.stop()
cfg.CONF.reset()
super(TestDeviceManager, self).tearDown()
def _test_setup_helper(self, device_exists, reuse_existing=False,
net=None, port=None):
net = net or fake_network
port = port or fake_port1
plugin = mock.Mock()
plugin.create_dhcp_port.return_value = port or fake_port1
plugin.get_dhcp_port.return_value = port or fake_port1
self.device_exists.return_value = device_exists
self.mock_driver.get_device_name.return_value = 'tap12345678-12'
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
dh._set_default_route = mock.Mock()
interface_name = dh.setup(net, reuse_existing)
self.assertEqual(interface_name, 'tap12345678-12')
plugin.assert_has_calls([
mock.call.create_dhcp_port(
{'port': {'name': '', 'admin_state_up': True,
'network_id': net.id, 'tenant_id': net.tenant_id,
'fixed_ips':
[{'subnet_id': fake_fixed_ip1.subnet_id}],
'device_id': mock.ANY}})])
expected_ips = ['172.9.9.9/24', '169.254.169.254/16']
expected = [
mock.call.get_device_name(port),
mock.call.init_l3(
'tap12345678-12',
expected_ips,
namespace=net.namespace)]
if not reuse_existing:
expected.insert(1,
mock.call.plug(net.id,
port.id,
'tap12345678-12',
'aa:bb:cc:dd:ee:ff',
namespace=net.namespace))
self.mock_driver.assert_has_calls(expected)
dh._set_default_route.assert_called_once_with(net)
def test_setup(self):
cfg.CONF.set_override('enable_metadata_network', False)
self._test_setup_helper(False)
cfg.CONF.set_override('enable_metadata_network', True)
self._test_setup_helper(False)
def test_setup_device_exists(self):
with testtools.ExpectedException(exceptions.PreexistingDeviceFailure):
self._test_setup_helper(True)
def test_setup_device_exists_reuse(self):
self._test_setup_helper(True, True)
def test_create_dhcp_port_raise_conflict(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
plugin.create_dhcp_port.return_value = None
self.assertRaises(exceptions.Conflict,
dh.setup_dhcp_port,
fake_network)
def test_create_dhcp_port_create_new(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
plugin.create_dhcp_port.return_value = fake_network.ports[0]
dh.setup_dhcp_port(fake_network)
plugin.assert_has_calls([
mock.call.create_dhcp_port(
{'port': {'name': '', 'admin_state_up': True,
'network_id':
fake_network.id, 'tenant_id': fake_network.tenant_id,
'fixed_ips':
[{'subnet_id': fake_fixed_ip1.subnet_id}],
'device_id': mock.ANY}})])
def test_create_dhcp_port_update_add_subnet(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
fake_network_copy = copy.deepcopy(fake_network)
fake_network_copy.ports[0].device_id = dh.get_device_id(fake_network)
fake_network_copy.subnets[1].enable_dhcp = True
plugin.update_dhcp_port.return_value = fake_network.ports[0]
dh.setup_dhcp_port(fake_network_copy)
port_body = {'port': {
'fixed_ips': [{'subnet_id': fake_fixed_ip1.subnet_id,
'ip_address': fake_fixed_ip1.ip_address},
{'subnet_id': fake_subnet2.id}]}}
plugin.assert_has_calls([
mock.call.update_dhcp_port(fake_network_copy.ports[0].id,
port_body)])
def test_update_dhcp_port_raises_conflict(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
fake_network_copy = copy.deepcopy(fake_network)
fake_network_copy.ports[0].device_id = dh.get_device_id(fake_network)
fake_network_copy.subnets[1].enable_dhcp = True
plugin.update_dhcp_port.return_value = None
self.assertRaises(exceptions.Conflict,
dh.setup_dhcp_port,
fake_network_copy)
def test_create_dhcp_port_no_update_or_create(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
fake_network_copy = copy.deepcopy(fake_network)
fake_network_copy.ports[0].device_id = dh.get_device_id(fake_network)
dh.setup_dhcp_port(fake_network_copy)
self.assertFalse(plugin.setup_dhcp_port.called)
self.assertFalse(plugin.update_dhcp_port.called)
def test_destroy(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa'))
fake_port = dhcp.DictModel(
dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff'))
with mock.patch('neutron.agent.linux.interface.NullDriver') as dvr_cls:
mock_driver = mock.MagicMock()
mock_driver.get_device_name.return_value = 'tap12345678-12'
dvr_cls.return_value = mock_driver
plugin = mock.Mock()
plugin.get_dhcp_port.return_value = fake_port
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
dh.destroy(fake_net, 'tap12345678-12')
dvr_cls.assert_called_once_with(cfg.CONF)
mock_driver.assert_has_calls(
[mock.call.unplug('tap12345678-12',
namespace='qdhcp-' + fake_net.id)])
plugin.assert_has_calls(
[mock.call.release_dhcp_port(fake_net.id, mock.ANY)])
def test_get_interface_name(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa'))
fake_port = dhcp.DictModel(
dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff'))
with mock.patch('neutron.agent.linux.interface.NullDriver') as dvr_cls:
mock_driver = mock.MagicMock()
mock_driver.get_device_name.return_value = 'tap12345678-12'
dvr_cls.return_value = mock_driver
plugin = mock.Mock()
plugin.get_dhcp_port.return_value = fake_port
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, plugin)
dh.get_interface_name(fake_net, fake_port)
dvr_cls.assert_called_once_with(cfg.CONF)
mock_driver.assert_has_calls(
[mock.call.get_device_name(fake_port)])
self.assertEqual(len(plugin.mock_calls), 0)
def test_get_device_id(self):
fake_net = dhcp.NetModel(
True, dict(id='12345678-1234-5678-1234567890ab',
tenant_id='aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa'))
expected = ('dhcp1ae5f96c-c527-5079-82ea-371a01645457-12345678-1234-'
'5678-1234567890ab')
with mock.patch('socket.gethostbyname') as get_host:
with mock.patch('uuid.uuid5') as uuid5:
uuid5.return_value = '1ae5f96c-c527-5079-82ea-371a01645457'
get_host.return_value = 'localhost'
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, None)
uuid5.called_once_with(uuid.NAMESPACE_DNS, 'localhost')
self.assertEqual(dh.get_device_id(fake_net), expected)
def _get_device_manager_with_mock_device(self, conf, device):
dh = dhcp.DeviceManager(conf, cfg.CONF.root_helper, None)
dh._get_device = mock.Mock(return_value=device)
return dh
def test_update(self):
# Try with namespaces and no metadata network
cfg.CONF.set_override('use_namespaces', True)
cfg.CONF.set_override('enable_metadata_network', False)
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, None)
dh._set_default_route = mock.Mock()
dh.update(True)
dh._set_default_route.assert_called_once_with(True)
# No namespaces, shouldn't set default route.
cfg.CONF.set_override('use_namespaces', False)
cfg.CONF.set_override('enable_metadata_network', False)
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, None)
dh._set_default_route = mock.Mock()
dh.update(FakeV4Network())
self.assertFalse(dh._set_default_route.called)
# Meta data network enabled, don't interfere with its gateway.
cfg.CONF.set_override('use_namespaces', True)
cfg.CONF.set_override('enable_metadata_network', True)
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, None)
dh._set_default_route = mock.Mock()
dh.update(FakeV4Network())
self.assertTrue(dh._set_default_route.called)
# For completeness
cfg.CONF.set_override('use_namespaces', False)
cfg.CONF.set_override('enable_metadata_network', True)
dh = dhcp.DeviceManager(cfg.CONF, cfg.CONF.root_helper, None)
dh._set_default_route = mock.Mock()
dh.update(FakeV4Network())
self.assertFalse(dh._set_default_route.called)
def test_set_default_route(self):
device = mock.Mock()
device.route.get_gateway.return_value = None
# Basic one subnet with gateway.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4Network()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
self.assertFalse(device.route.delete_gateway.called)
device.route.add_gateway.assert_called_once_with('192.168.0.1')
def test_set_default_route_no_subnet(self):
device = mock.Mock()
device.route.get_gateway.return_value = None
# Try a namespace but no subnet.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4NetworkNoSubnet()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
self.assertFalse(device.route.delete_gateway.called)
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_no_subnet_delete_gateway(self):
device = mock.Mock()
device.route.get_gateway.return_value = dict(gateway='192.168.0.1')
# Try a namespace but no subnet where a gateway needs to be deleted.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4NetworkNoSubnet()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
device.route.delete_gateway.assert_called_once_with('192.168.0.1')
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_no_gateway(self):
device = mock.Mock()
device.route.get_gateway.return_value = dict(gateway='192.168.0.1')
# Try a subnet with no gateway
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4NetworkNoGateway()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
device.route.delete_gateway.assert_called_once_with('192.168.0.1')
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_do_nothing(self):
device = mock.Mock()
device.route.get_gateway.return_value = dict(gateway='192.168.0.1')
# Try a subnet where the gateway doesn't change. Should do nothing.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4Network()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
self.assertFalse(device.route.delete_gateway.called)
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_change_gateway(self):
device = mock.Mock()
device.route.get_gateway.return_value = dict(gateway='192.168.0.2')
# Try a subnet with a gateway this is different than the current.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4Network()
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
self.assertFalse(device.route.delete_gateway.called)
device.route.add_gateway.assert_called_once_with('192.168.0.1')
def test_set_default_route_two_subnets(self):
device = mock.Mock()
device.route.get_gateway.return_value = None
# Try two subnets. Should set gateway from the first.
dh = self._get_device_manager_with_mock_device(cfg.CONF, device)
network = FakeV4Network()
subnet2 = FakeV4Subnet()
subnet2.gateway_ip = '192.168.1.1'
network.subnets = [subnet2, FakeV4Subnet()]
dh._set_default_route(network)
device.route.get_gateway.assert_called_once()
self.assertFalse(device.route.delete_gateway.called)
device.route.add_gateway.assert_called_once_with('192.168.1.1')
class TestDictModel(base.BaseTestCase):
def test_basic_dict(self):
d = dict(a=1, b=2)
m = dhcp.DictModel(d)
self.assertEqual(m.a, 1)
self.assertEqual(m.b, 2)
def test_dict_has_sub_dict(self):
d = dict(a=dict(b=2))
m = dhcp.DictModel(d)
self.assertEqual(m.a.b, 2)
def test_dict_contains_list(self):
d = dict(a=[1, 2])
m = dhcp.DictModel(d)
self.assertEqual(m.a, [1, 2])
def test_dict_contains_list_of_dicts(self):
d = dict(a=[dict(b=2), dict(c=3)])
m = dhcp.DictModel(d)
self.assertEqual(m.a[0].b, 2)
self.assertEqual(m.a[1].c, 3)
class TestNetModel(base.BaseTestCase):
def test_ns_name(self):
network = dhcp.NetModel(True, {'id': 'foo'})
self.assertEqual(network.namespace, 'qdhcp-foo')
def test_ns_name_false_namespace(self):
network = dhcp.NetModel(False, {'id': 'foo'})
self.assertIsNone(network.namespace)
def test_ns_name_none_namespace(self):
network = dhcp.NetModel(None, {'id': 'foo'})
self.assertIsNone(network.namespace)
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