OpenStack Networking (Neutron)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 

2270 lines
101 KiB

# 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 collections
import copy
import sys
import uuid
import eventlet
import mock
from neutron_lib.agent import constants as agent_consts
from neutron_lib import constants as const
from neutron_lib import exceptions
from oslo_config import cfg
import oslo_messaging
from oslo_utils import timeutils
import testtools
from neutron.agent.dhcp import agent as dhcp_agent
from neutron.agent import dhcp_agent as entry
from neutron.agent.linux import dhcp
from neutron.agent.linux import interface
from neutron.agent.metadata import driver as metadata_driver
from neutron.common import config as common_config
from neutron.common import utils
from neutron.conf.agent import common as config
from neutron.conf.agent import dhcp as dhcp_config
from neutron.tests import base
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__)
FAKE_NETWORK_UUID = '12345678-1234-5678-1234567890ab'
FAKE_NETWORK_DHCP_NS = "qdhcp-%s" % FAKE_NETWORK_UUID
FAKE_TENANT_ID = 'aaaaaaaa-aaaa-aaaa-aaaaaaaaaaaa'
FAKE_PRIORITY = 6
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=FAKE_NETWORK_UUID,
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=const.IP_VERSION_4,
ipv6_ra_mode=None, ipv6_address_mode=None,
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=FAKE_NETWORK_UUID,
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=const.IP_VERSION_4,
allocation_pools=fake_subnet2_allocation_pools))
fake_subnet3 = dhcp.DictModel(dict(id='bbbbbbbb-1111-2222-bbbbbbbbbbbb',
network_id=FAKE_NETWORK_UUID,
cidr='192.168.1.1/24', enable_dhcp=True,
ip_version=const.IP_VERSION_4))
fake_ipv6_subnet = dhcp.DictModel(dict(id='bbbbbbbb-1111-2222-bbbbbbbbbbbb',
network_id=FAKE_NETWORK_UUID,
cidr='2001:0db8::0/64', enable_dhcp=True,
tenant_id=FAKE_TENANT_ID,
gateway_ip='2001:0db8::1',
ip_version=const.IP_VERSION_6,
ipv6_ra_mode='slaac', ipv6_address_mode=None))
fake_meta_subnet = dhcp.DictModel(dict(id='bbbbbbbb-1111-2222-bbbbbbbbbbbb',
network_id=FAKE_NETWORK_UUID,
cidr='169.254.169.252/30',
gateway_ip='169.254.169.253',
enable_dhcp=True,
ip_version=const.IP_VERSION_4))
fake_fixed_ip1 = dhcp.DictModel(dict(id='', subnet_id=fake_subnet1.id,
ip_address='172.9.9.9'))
fake_fixed_ip_subnet2 = dhcp.DictModel(dict(id='', subnet_id=fake_subnet2.id,
ip_address='172.9.8.9'))
fake_fixed_ip2 = dhcp.DictModel(dict(id='', subnet_id=fake_subnet1.id,
ip_address='172.9.9.10'))
fake_fixed_ipv6 = dhcp.DictModel(dict(id='', subnet_id=fake_ipv6_subnet.id,
ip_address='2001:db8::a8bb:ccff:fedd:ee99'))
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',
device_owner='',
allocation_pools=fake_subnet1_allocation_pools,
mac_address='aa:bb:cc:dd:ee:ff',
network_id=FAKE_NETWORK_UUID,
fixed_ips=[fake_fixed_ip1]))
fake_dhcp_port = dhcp.DictModel(dict(id='12345678-1234-aaaa-123456789022',
device_id='dhcp-12345678-1234-aaaa-123456789022',
device_owner=const.DEVICE_OWNER_DHCP,
allocation_pools=fake_subnet1_allocation_pools,
mac_address='aa:bb:cc:dd:ee:22',
network_id=FAKE_NETWORK_UUID,
fixed_ips=[fake_fixed_ip2]))
fake_port2 = dhcp.DictModel(dict(id='12345678-1234-aaaa-123456789000',
device_id='dhcp-12345678-1234-aaaa-123456789000',
device_owner='',
mac_address='aa:bb:cc:dd:ee:99',
network_id=FAKE_NETWORK_UUID,
revision_number=77,
fixed_ips=[fake_fixed_ip2]))
fake_ipv6_port = dhcp.DictModel(dict(id='12345678-1234-aaaa-123456789000',
device_owner='',
mac_address='aa:bb:cc:dd:ee:99',
network_id=FAKE_NETWORK_UUID,
fixed_ips=[fake_fixed_ipv6]))
fake_meta_port = dhcp.DictModel(dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff',
network_id=FAKE_NETWORK_UUID,
device_owner=const.DEVICE_OWNER_ROUTER_INTF,
device_id='forzanapoli',
fixed_ips=[fake_meta_fixed_ip]))
fake_meta_dvr_port = dhcp.DictModel(fake_meta_port.copy())
fake_meta_dvr_port.device_owner = const.DEVICE_OWNER_DVR_INTERFACE
fake_dist_port = dhcp.DictModel(dict(id='12345678-1234-aaaa-1234567890ab',
mac_address='aa:bb:cc:dd:ee:ff',
network_id=FAKE_NETWORK_UUID,
device_owner=const.DEVICE_OWNER_DVR_INTERFACE,
device_id='forzanapoli',
fixed_ips=[fake_meta_fixed_ip]))
fake_network = dhcp.NetModel(dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_subnet1, fake_subnet2],
ports=[fake_port1]))
fake_network_ipv6 = dhcp.NetModel(dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_ipv6_subnet],
ports=[fake_ipv6_port]))
fake_network_ipv6_ipv4 = dhcp.NetModel(dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_ipv6_subnet, fake_subnet1],
ports=[fake_port1]))
isolated_network = dhcp.NetModel(
dict(
id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_subnet1],
ports=[fake_port1]))
nonisolated_dist_network = dhcp.NetModel(
dict(
id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_subnet1],
ports=[fake_port1, fake_port2]))
empty_network = dhcp.NetModel(
dict(
id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_subnet1],
ports=[]))
fake_meta_network = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_meta_subnet],
ports=[fake_meta_port]))
fake_meta_dvr_network = dhcp.NetModel(fake_meta_network.copy())
fake_meta_dvr_network.ports = [fake_meta_dvr_port]
fake_dist_network = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
admin_state_up=True,
subnets=[fake_meta_subnet],
ports=[fake_meta_port, fake_dist_port]))
fake_down_network = dhcp.NetModel(
dict(id='12345678-dddd-dddd-1234567890ab',
tenant_id=FAKE_TENANT_ID,
admin_state_up=False,
subnets=[],
ports=[]))
class TestDhcpAgent(base.BaseTestCase):
METADATA_DEFAULT_IP = dhcp.METADATA_DEFAULT_IP
def setUp(self):
super(TestDhcpAgent, self).setUp()
entry.register_options(cfg.CONF)
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
# disable setting up periodic state reporting
cfg.CONF.set_override('report_interval', 0, 'AGENT')
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.mock_create_metadata_proxy_cfg = mock.patch(
"neutron.agent.metadata.driver.HaproxyConfigurator")
self.mock_create_metadata_proxy_cfg.start()
self.mock_ip_wrapper_p = mock.patch("neutron.agent.linux.ip_lib."
"IPWrapper")
self.mock_ip_wrapper = self.mock_ip_wrapper_p.start()
def test_init_resync_throttle_conf(self):
try:
dhcp_agent.DhcpAgent(HOSTNAME)
except exceptions.InvalidConfigurationOption:
self.fail("DHCP agent initialization unexpectedly raised an "
"InvalidConfigurationOption exception. No exception is "
"expected with the default configurations.")
# default resync_interval = 5; default resync_throttle = 1
cfg.CONF.set_override('resync_throttle', 10)
# resync_throttle must be <= resync_interval, otherwise an
# InvalidConfigurationOption exception would be raised with log
# message.
with mock.patch.object(dhcp_agent.LOG, 'exception') as log:
with testtools.ExpectedException(
exceptions.InvalidConfigurationOption):
dhcp_agent.DhcpAgent(HOSTNAME)
log.assert_any_call("DHCP agent must have resync_throttle <= "
"resync_interval")
def test_init_host(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
with mock.patch.object(dhcp, 'sync_state') as sync_state:
dhcp.init_host()
sync_state.assert_called_once_with()
def test_dhcp_agent_manager(self):
state_rpc_str = 'neutron.agent.rpc.PluginReportStateAPI'
# sync_state is needed for this test
cfg.CONF.set_override('report_interval', 1, 'AGENT')
mock_start_ready = mock.patch.object(
dhcp_agent.DhcpAgentWithStateReport, 'start_ready_ports_loop',
autospec=True).start()
with mock.patch.object(dhcp_agent.DhcpAgentWithStateReport,
'periodic_resync',
autospec=True) as mock_periodic_resync:
with mock.patch(state_rpc_str) as state_rpc:
test_args = [
'dhcp', '--config-file',
base.etcdir('neutron.conf')
]
with mock.patch.object(sys, 'argv', test_args):
cfg.CONF.register_opts(dhcp_config.DHCP_AGENT_OPTS)
config.register_interface_driver_opts_helper(cfg.CONF)
config.register_agent_state_opts_helper(cfg.CONF)
config.register_interface_opts(cfg.CONF)
common_config.init(sys.argv[1:])
agent_mgr = dhcp_agent.DhcpAgentWithStateReport(
'testhost')
eventlet.greenthread.sleep(1)
agent_mgr.after_start()
mock_periodic_resync.assert_called_once_with(agent_mgr)
mock_start_ready.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_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
['periodic_resync', 'start_ready_ports_loop',
'_process_loop'])
with mock.patch.multiple(dhcp, **attrs_to_mock) as mocks:
with mock.patch.object(dhcp_agent.eventlet,
'spawn_n') as spawn_n:
dhcp.run()
mocks['periodic_resync'].assert_called_once_with()
mocks['start_ready_ports_loop'].assert_called_once_with()
spawn_n.assert_called_once_with(mocks['_process_loop'])
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,
mock.ANY,
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
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
with mock.patch.object(dhcp,
'schedule_resync') as schedule_resync:
self.assertIsNone(dhcp.call_driver('foo', network))
self.driver.assert_called_once_with(cfg.CONF,
mock.ANY,
mock.ANY,
mock.ANY,
mock.ANY)
self.assertEqual(expected_sync, schedule_resync.called)
def test_call_driver_ip_address_generation_failure(self):
error = oslo_messaging.RemoteError(
exc_type='IpAddressGenerationFailure')
self._test_call_driver_failure(exc=error, expected_sync=False)
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=oslo_messaging.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_net_ids, active_net_ids):
active_networks = set(mock.Mock(id=netid) for netid in active_net_ids)
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 ['disable_dhcp_helper', 'cache',
'safe_configure_dhcp_for_network'])
with mock.patch.multiple(dhcp, **attrs_to_mock) as mocks:
mocks['cache'].get_network_ids.return_value = known_net_ids
mocks['cache'].get_port_ids.return_value = range(4)
dhcp.sync_state()
diff = set(known_net_ids) - set(active_net_ids)
exp_disable = [mock.call(net_id) for net_id in diff]
mocks['cache'].assert_has_calls([mock.call.get_network_ids()])
mocks['disable_dhcp_helper'].assert_has_calls(exp_disable)
self.assertEqual(set(range(4)), dhcp.dhcp_ready_ports)
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):
with mock.patch.object(dhcp_agent.eventlet.GreenPool, 'waitall') as w:
active_net_ids = ['1', '2', '3', '4', '5']
known_net_ids = ['1', '2', '3', '4', '5']
self._test_sync_state_helper(known_net_ids, active_net_ids)
w.assert_called_once_with()
def test_sync_state_for_all_networks_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)
with mock.patch.object(dhcp,
'schedule_resync') as schedule_resync:
dhcp.sync_state()
self.assertTrue(log.called)
self.assertTrue(schedule_resync.called)
def test_sync_state_for_one_network_plugin_error(self):
with mock.patch(DHCP_PLUGIN) as plug:
mock_plugin = mock.Mock()
exc = Exception()
mock_plugin.get_active_networks_info.side_effect = exc
plug.return_value = mock_plugin
with mock.patch.object(dhcp_agent.LOG, 'exception') as log:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
with mock.patch.object(dhcp,
'schedule_resync') as schedule_resync:
dhcp.sync_state(['foo_network'])
self.assertTrue(log.called)
schedule_resync.assert_called_with(exc, 'foo_network')
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_start_ready_ports_loop(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
with mock.patch.object(dhcp_agent.eventlet, 'spawn') as spawn:
dhcp.start_ready_ports_loop()
spawn.assert_called_once_with(dhcp._dhcp_ready_ports_loop)
def test__dhcp_ready_ports_doesnt_log_exception_on_timeout(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.dhcp_ready_ports = set(range(4))
with mock.patch.object(dhcp.plugin_rpc, 'dhcp_ready_on_ports',
side_effect=oslo_messaging.MessagingTimeout):
# exit after 2 iterations
with mock.patch.object(dhcp_agent.eventlet, 'sleep',
side_effect=[0, 0, RuntimeError]):
with mock.patch.object(dhcp_agent.LOG, 'exception') as lex:
with testtools.ExpectedException(RuntimeError):
dhcp._dhcp_ready_ports_loop()
self.assertFalse(lex.called)
def test__dhcp_ready_ports_loop(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.dhcp_ready_ports = set(range(4))
with mock.patch.object(dhcp.plugin_rpc, 'dhcp_ready_on_ports',
side_effect=[RuntimeError, 0]) as ready:
# exit after 2 iterations
with mock.patch.object(dhcp_agent.eventlet, 'sleep',
side_effect=[0, 0, RuntimeError]):
with testtools.ExpectedException(RuntimeError):
dhcp._dhcp_ready_ports_loop()
# should have been called with all ports again after the failure
ready.assert_has_calls([mock.call(set(range(4)))] * 2)
def test_dhcp_ready_ports_loop_with_limit_ports_per_call(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
sync_max = dhcp_agent.DHCP_READY_PORTS_SYNC_MAX
port_count = sync_max + 1
dhcp.dhcp_ready_ports = set(range(port_count))
with mock.patch.object(dhcp.plugin_rpc,
'dhcp_ready_on_ports') as ready:
# exit after 2 iterations
with mock.patch.object(dhcp_agent.eventlet, 'sleep',
side_effect=[0, 0, RuntimeError]):
with testtools.ExpectedException(RuntimeError):
dhcp._dhcp_ready_ports_loop()
# all ports should have been processed
self.assertEqual(set(), dhcp.dhcp_ready_ports)
# two calls are expected, one with DHCP_READY_PORTS_SYNC_MAX ports,
# second one with one port
self.assertEqual(2, ready.call_count)
self.assertEqual(sync_max, len(ready.call_args_list[0][0][0]))
self.assertEqual(1, len(ready.call_args_list[1][0][0]))
# all ports need to be ready
ports_ready = (ready.call_args_list[0][0][0] |
ready.call_args_list[1][0][0])
self.assertEqual(set(range(port_count)), ports_ready)
def test_dhcp_ready_ports_updates_after_enable_dhcp(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
self.assertEqual(set(), dhcp.dhcp_ready_ports)
dhcp.configure_dhcp_for_network(fake_network)
self.assertEqual({fake_port1.id}, dhcp.dhcp_ready_ports)
def test_dhcp_metadata_destroy(self):
cfg.CONF.set_override('force_metadata', True)
cfg.CONF.set_override('enable_isolated_metadata', False)
with mock.patch.object(metadata_driver,
'MetadataDriver') as md_cls:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.configure_dhcp_for_network(fake_network)
md_cls.spawn_monitored_metadata_proxy.assert_called_once_with(
mock.ANY, mock.ANY, mock.ANY, mock.ANY,
bind_address=self.METADATA_DEFAULT_IP,
network_id=fake_network.id)
dhcp.disable_dhcp_helper(fake_network.id)
md_cls.destroy_monitored_metadata_proxy.assert_called_once_with(
mock.ANY, fake_network.id, mock.ANY, fake_network.namespace)
def test_report_state_revival_logic(self):
dhcp = dhcp_agent.DhcpAgentWithStateReport(HOSTNAME)
with mock.patch.object(dhcp.state_rpc,
'report_state') as report_state,\
mock.patch.object(dhcp, "run"):
report_state.return_value = agent_consts.AGENT_ALIVE
dhcp._report_state()
self.assertEqual({}, dhcp.needs_resync_reasons)
report_state.return_value = agent_consts.AGENT_REVIVED
dhcp._report_state()
self.assertEqual(dhcp.needs_resync_reasons[None],
['Agent has just been revived'])
def test_periodic_resync_helper(self):
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
resync_reasons = collections.OrderedDict(
(('a', 'reason1'), ('b', 'reason2')))
dhcp.needs_resync_reasons = resync_reasons
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(resync_reasons.keys())
self.assertEqual(0, len(dhcp.needs_resync_reasons))
def test_periodic_resync_helper_with_event(self):
with mock.patch.object(dhcp_agent.LOG, 'debug') as log:
dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
dhcp.schedule_resync('reason1', 'a')
dhcp.schedule_resync('reason1', 'b')
reasons = dhcp.needs_resync_reasons.keys()
with mock.patch.object(dhcp, 'sync_state') as sync_state:
sync_state.side_effect = RuntimeError
with testtools.ExpectedException(RuntimeError):
dhcp._periodic_resync_helper()
log.assert_any_call("Resync event has been scheduled")
sync_state.assert_called_once_with(reasons)
self.assertEqual(0, len(dhcp.needs_resync_reasons))
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,
)
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,
)
self.assertEqual(set(networks), set(dhcp.cache.get_network_ids()))
def test_none_interface_driver(self):
cfg.CONF.set_override('interface_driver', None)
self.assertRaises(SystemExit, dhcp.DeviceManager,
cfg.CONF, None)
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.bar')
self.assertRaises(SystemExit, dhcp.DeviceManager,
cfg.CONF, None)
class TestLogArgs(base.BaseTestCase):
def test_log_args_without_log_dir_and_file(self):
conf_dict = {'debug': True,
'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,
'log_dir': '/etc/tests',
'log_file': None,
'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']
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,
'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,
'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,
'log_file': 'tests/filelog',
'log_dir': '/etc/tests',
'use_syslog': True,
'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)
class TestDhcpAgentEventHandler(base.BaseTestCase):
def setUp(self):
super(TestDhcpAgentEventHandler, self).setUp()
config.register_interface_driver_opts_helper(cfg.CONF)
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
entry.register_options(cfg.CONF) # register all dhcp cfg options
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()
self.cache.is_port_message_stale.return_value = False
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()
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.schedule_resync_p = mock.patch.object(self.dhcp,
'schedule_resync')
self.schedule_resync = self.schedule_resync_p.start()
self.external_process_p = mock.patch(
'neutron.agent.linux.external_process.ProcessManager'
)
self.external_process = self.external_process_p.start()
self.mock_resize_p = mock.patch('neutron.agent.dhcp.agent.'
'DhcpAgent._resize_process_pool')
self.mock_resize = self.mock_resize_p.start()
def _process_manager_constructor_call(self, ns=FAKE_NETWORK_DHCP_NS):
return mock.call(conf=cfg.CONF,
uuid=FAKE_NETWORK_UUID,
namespace=ns,
service='haproxy',
default_cmd_callback=mock.ANY)
def _enable_dhcp_helper(self, network, enable_isolated_metadata=False,
is_isolated_network=False):
self.dhcp._process_monitor = mock.Mock()
if enable_isolated_metadata:
cfg.CONF.set_override('enable_isolated_metadata', True)
self.plugin.get_network_info.return_value = network
self.dhcp.enable_dhcp_helper(network.id)
self.plugin.assert_has_calls([
mock.call.get_network_info(network.id)])
self.call_driver.assert_called_once_with('enable', network)
self.cache.assert_has_calls([mock.call.put(network)])
if is_isolated_network and enable_isolated_metadata:
self.external_process.assert_has_calls([
self._process_manager_constructor_call(),
mock.call().enable()], any_order=True)
else:
self.external_process.assert_has_calls([
self._process_manager_constructor_call(),
mock.call().disable()])
def test_enable_dhcp_helper_enable_metadata_isolated_network(self):
self._enable_dhcp_helper(isolated_network,
enable_isolated_metadata=True,
is_isolated_network=True)
def test_enable_dhcp_helper_enable_metadata_no_gateway(self):
isolated_network_no_gateway = copy.deepcopy(isolated_network)
isolated_network_no_gateway.subnets[0].gateway_ip = None
self._enable_dhcp_helper(isolated_network_no_gateway,
enable_isolated_metadata=True,
is_isolated_network=True)
def test_enable_dhcp_helper_enable_metadata_nonisolated_network(self):
nonisolated_network = copy.deepcopy(isolated_network)
nonisolated_network.ports[0].device_owner = (
const.DEVICE_OWNER_ROUTER_INTF)
nonisolated_network.ports[0].fixed_ips[0].ip_address = '172.9.9.1'
self._enable_dhcp_helper(nonisolated_network,
enable_isolated_metadata=True,
is_isolated_network=False)
def test_enable_dhcp_helper_enable_metadata_nonisolated_dist_network(self):
nonisolated_dvr_network = copy.deepcopy(nonisolated_dist_network)
nonisolated_dvr_network.ports[0].device_owner = (
const.DEVICE_OWNER_ROUTER_INTF)
nonisolated_dvr_network.ports[0].fixed_ips[0].ip_address = '172.9.9.1'
nonisolated_dvr_network.ports[1].device_owner = (
const.DEVICE_OWNER_DVR_INTERFACE)
nonisolated_dvr_network.ports[1].fixed_ips[0].ip_address = '172.9.9.1'
self._enable_dhcp_helper(nonisolated_dvr_network,
enable_isolated_metadata=True,
is_isolated_network=False)
def test_enable_dhcp_helper_enable_metadata_empty_network(self):
self._enable_dhcp_helper(empty_network,
enable_isolated_metadata=True,
is_isolated_network=True)
def test_enable_dhcp_helper_enable_metadata_ipv6_ipv4_network(self):
self._enable_dhcp_helper(fake_network_ipv6_ipv4,
enable_isolated_metadata=True,
is_isolated_network=True)
def test_enable_dhcp_helper_driver_failure_ipv6_ipv4_network(self):
self.plugin.get_network_info.return_value = fake_network_ipv6_ipv4
self.call_driver.return_value = False
cfg.CONF.set_override('enable_isolated_metadata', True)
with mock.patch.object(self.dhcp,
'enable_isolated_metadata_proxy') as enable_metadata:
self.dhcp.enable_dhcp_helper(fake_network_ipv6_ipv4.id)
self.plugin.assert_has_calls(
[mock.call.get_network_info(fake_network_ipv6_ipv4.id)])
self.call_driver.assert_called_once_with('enable',
fake_network_ipv6_ipv4)
self.assertFalse(self.cache.called)
self.assertFalse(enable_metadata.called)
self.assertFalse(self.external_process.called)
def test_enable_dhcp_helper(self):
self._enable_dhcp_helper(fake_network)
def test_enable_dhcp_helper_ipv6_network(self):
self._enable_dhcp_helper(fake_network_ipv6)
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
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.assertFalse(self.dhcp.schedule_resync.called)
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.schedule_resync.called)
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
cfg.CONF.set_override('enable_isolated_metadata', True)
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)
self.external_process.assert_has_calls([
self._process_manager_constructor_call(),
mock.call().disable()])
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)])
self.external_process.assert_has_calls([
self._process_manager_constructor_call(),
mock.call().disable()
])
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):
self.dhcp._process_monitor = mock.Mock()
self.dhcp.enable_isolated_metadata_proxy(fake_network)
self.external_process.assert_has_calls([
self._process_manager_constructor_call(),
mock.call().enable()
], any_order=True)
def test_disable_isolated_metadata_proxy(self):
method_path = ('neutron.agent.metadata.driver.MetadataDriver'
'.destroy_monitored_metadata_proxy')
with mock.patch(method_path) as destroy:
self.dhcp.disable_isolated_metadata_proxy(fake_network)
destroy.assert_called_once_with(self.dhcp._process_monitor,
fake_network.id,
cfg.CONF,
fake_network.namespace)
def _test_enable_isolated_metadata_proxy(self, network):
cfg.CONF.set_override('enable_metadata_network', True)
cfg.CONF.set_override('debug', True)
cfg.CONF.set_override('log_file', 'test.log')
method_path = ('neutron.agent.metadata.driver.MetadataDriver'
'.spawn_monitored_metadata_proxy')
with mock.patch(method_path) as spawn:
self.dhcp.enable_isolated_metadata_proxy(network)
metadata_ip = dhcp.METADATA_DEFAULT_IP
spawn.assert_called_once_with(self.dhcp._process_monitor,
network.namespace,
dhcp.METADATA_PORT,
cfg.CONF,
bind_address=metadata_ip,
router_id='forzanapoli')
def test_enable_isolated_metadata_proxy_with_metadata_network(self):
self._test_enable_isolated_metadata_proxy(fake_meta_network)
def test_enable_isolated_metadata_proxy_with_metadata_network_dvr(self):
self._test_enable_isolated_metadata_proxy(fake_meta_dvr_network)
def test_enable_isolated_metadata_proxy_with_dist_network(self):
self._test_enable_isolated_metadata_proxy(fake_dist_network)
def _test_disable_isolated_metadata_proxy(self, network):
cfg.CONF.set_override('enable_metadata_network', True)
method_path = ('neutron.agent.metadata.driver.MetadataDriver'
'.destroy_monitored_metadata_proxy')
with mock.patch(method_path) as destroy:
self.dhcp.enable_isolated_metadata_proxy(network)
self.dhcp.disable_isolated_metadata_proxy(network)
destroy.assert_called_once_with(self.dhcp._process_monitor,
'forzanapoli',
cfg.CONF,
network.namespace)
def test_disable_isolated_metadata_proxy_with_metadata_network(self):
self._test_disable_isolated_metadata_proxy(fake_meta_network)
def test_disable_isolated_metadata_proxy_with_metadata_network_dvr(self):
self._test_disable_isolated_metadata_proxy(fake_meta_dvr_network)
def test_disable_isolated_metadata_proxy_with_dist_network(self):
self._test_disable_isolated_metadata_proxy(fake_dist_network)
def test_network_create_end(self):
payload = dict(network=dict(id=fake_network.id),
priority=FAKE_PRIORITY)
with mock.patch.object(self.dhcp, 'enable_dhcp_helper') as enable:
self.dhcp.network_create_end(None, payload)
self.dhcp._process_resource_update()
enable.assert_called_once_with(fake_network.id)
def test_network_update_end_admin_state_up(self):
payload = dict(network=dict(id=fake_network.id, admin_state_up=True),
priority=FAKE_PRIORITY)
with mock.patch.object(self.dhcp, 'enable_dhcp_helper') as enable:
self.dhcp.network_update_end(None, payload)
self.dhcp._process_resource_update()
enable.assert_called_once_with(fake_network.id)
def test_network_update_end_admin_state_down(self):
payload = dict(network=dict(id=fake_network.id, admin_state_up=False),
priority=FAKE_PRIORITY)
with mock.patch.object(self.dhcp, 'disable_dhcp_helper') as disable:
self.dhcp.network_update_end(None, payload)
self.dhcp._process_resource_update()
disable.assert_called_once_with(fake_network.id)
def test_network_delete_end(self):
payload = dict(network_id=fake_network.id, priority=FAKE_PRIORITY)
with mock.patch.object(self.dhcp, 'disable_dhcp_helper') as disable:
self.dhcp.network_delete_end(None, payload)
self.dhcp._process_resource_update()
disable.assert_called_once_with(fake_network.id)
def test_refresh_dhcp_helper_no_dhcp_enabled_networks(self):
network = dhcp.NetModel(dict(id='net-id',
tenant_id=FAKE_TENANT_ID,
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.assert_called_once_with(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(dict(id='net-id',
tenant_id=FAKE_TENANT_ID,
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.schedule_resync.called)
def test_subnet_create_end(self):
# We should call reload_allocations when subnet's enable_dhcp
# attribute isn't True.
payload = dict(subnet=dhcp.DictModel(
dict(network_id=fake_network.id, enable_dhcp=False,
cidr='99.99.99.0/24', ip_version=const.IP_VERSION_4)),
priority=FAKE_PRIORITY)
self.cache.get_network_by_id.return_value = fake_network
new_net = copy.deepcopy(fake_network)
new_net.subnets.append(payload['subnet'])
self.plugin.get_network_info.return_value = new_net
self.dhcp.subnet_create_end(None, payload)
self.dhcp._process_resource_update()
self.cache.assert_has_calls([mock.call.put(new_net)])
self.call_driver.assert_called_once_with('reload_allocations', new_net)
# We should call restart when subnet's enable_dhcp attribute is True.
self.call_driver.reset_mock()
payload = dict(subnet=dhcp.DictModel(
dict(network_id=fake_network.id, enable_dhcp=True,
cidr='99.99.88.0/24', ip_version=const.IP_VERSION_4)),
priority=FAKE_PRIORITY)
new_net = copy.deepcopy(fake_network)
new_net.subnets.append(payload['subnet'])
self.plugin.get_network_info.return_value = new_net
self.dhcp.subnet_create_end(None, payload)
self.dhcp._process_resource_update()
self.cache.assert_has_calls([mock.call.put(new_net)])
self.call_driver.assert_called_once_with('restart', new_net)
def test_subnet_update_end(self):
payload = dict(subnet=dict(network_id=fake_network.id),
priority=FAKE_PRIORITY)
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.dhcp._process_resource_update()
self.cache.assert_has_calls([mock.call.put(fake_network)])
self.call_driver.assert_called_once_with('reload_allocations',
fake_network)
# ensure all ports flagged as ready
self.assertEqual({p.id for p in fake_network.ports},
self.dhcp.dhcp_ready_ports)
def test_subnet_update_dhcp(self):
payload = dict(subnet=dict(network_id=fake_network.id),
priority=FAKE_PRIORITY)
self.cache.get_network_by_id.return_value = fake_network
new_net = copy.deepcopy(fake_network)
new_subnet1 = copy.deepcopy(fake_subnet1)
new_subnet2 = copy.deepcopy(fake_subnet2)
new_subnet2.enable_dhcp = True
new_net.subnets = [new_subnet1, new_subnet2]
self.plugin.get_network_info.return_value = new_net
self.dhcp.subnet_update_end(None, payload)
self.dhcp._process_resource_update()
self.call_driver.assert_called_once_with('restart', new_net)
self.call_driver.reset_mock()
self.cache.get_network_by_id.return_value = new_net
new_net2 = copy.deepcopy(new_net)
new_subnet1 = copy.deepcopy(new_subnet1)
new_subnet1.enable_dhcp = False
new_subnet2 = copy.deepcopy(new_subnet2)
new_net2.subnets = [new_subnet1, new_subnet2]
self.plugin.get_network_info.return_value = new_net2
self.dhcp.subnet_update_end(None, payload)
self.dhcp._process_resource_update()
self.call_driver.assert_called_once_with('restart', new_net2)
def test_subnet_update_end_restart(self):
new_state = dhcp.NetModel(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),
priority=FAKE_PRIORITY)
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.dhcp._process_resource_update()
self.cache.assert_has_calls([mock.call.put(new_state)])
self.call_driver.assert_called_once_with('restart',
new_state)
def test_subnet_delete_end_no_network_id(self):
prev_state = dhcp.NetModel(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, priority=FAKE_PRIORITY)
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.dhcp._process_resource_update()
self.cache.assert_has_calls([
mock.call.get_network_by_subnet_id(
'bbbbbbbb-bbbb-bbbb-bbbbbbbbbbbb'),
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_subnet_update_end_delete_payload(self):
prev_state = dhcp.NetModel(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, network_id=fake_network.id,
priority=FAKE_PRIORITY)
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.dhcp._process_resource_update()
self.cache.assert_has_calls([
mock.call.get_network_by_subnet_id(
'bbbbbbbb-bbbb-bbbb-bbbbbbbbbbbb'),
mock.call.get_network_by_id(FAKE_NETWORK_UUID),
mock.call.put(fake_network)])
self.call_driver.assert_called_once_with('restart',
fake_network)
def test_port_update_end(self):
self.reload_allocations_p = mock.patch.object(self.dhcp,
'reload_allocations')
self.reload_allocations = self.reload_allocations_p.start()
payload = dict(port=copy.deepcopy(fake_port2))
self.cache.get_network_by_id.return_value = fake_network
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
self.reload_allocations.assert_called_once_with(fake_port2,
fake_network)
def test_reload_allocations(self):
self.cache.get_port_by_id.return_value = fake_port2
with mock.patch.object(
self.dhcp, 'update_isolated_metadata_proxy') as ump:
self.dhcp.reload_allocations(fake_port2, fake_network)
self.cache.assert_has_calls([mock.call.put_port(mock.ANY)])
self.call_driver.assert_called_once_with('reload_allocations',
fake_network)
self.assertTrue(ump.called)
def test_port_create_end(self):
self.reload_allocations_p = mock.patch.object(self.dhcp,
'reload_allocations')
self.reload_allocations = self.reload_allocations_p.start()
payload = dict(port=copy.deepcopy(fake_port2))
self.cache.get_network_by_id.return_value = fake_network
self.dhcp.port_create_end(None, payload)
self.dhcp._process_resource_update()
self.reload_allocations.assert_called_once_with(fake_port2,
fake_network)
def test_port_create_end_no_resync_if_same_port_already_in_cache(self):
self.reload_allocations_p = mock.patch.object(self.dhcp,
'reload_allocations')
self.reload_allocations = self.reload_allocations_p.start()
payload = dict(port=copy.deepcopy(fake_port2))
cached_port = copy.deepcopy(fake_port2)
new_fake_network = copy.deepcopy(fake_network)
new_fake_network.ports = [cached_port]
self.cache.get_network_by_id.return_value = new_fake_network
self.dhcp.port_create_end(None, payload)
self.dhcp._process_resource_update()
self.reload_allocations.assert_called_once_with(fake_port2,
new_fake_network)
self.schedule_resync.assert_not_called()
def test_port_update_change_ip_on_port(self):
payload = dict(port=fake_port1, priority=FAKE_PRIORITY)
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
with mock.patch.object(
self.dhcp, 'update_isolated_metadata_proxy') as ump:
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
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)])
self.assertTrue(ump.called)
def test_port_update_change_subnet_on_dhcp_agents_port(self):
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port1
payload = dict(port=copy.deepcopy(fake_port1), priority=FAKE_PRIORITY)
device_id = utils.get_dhcp_agent_device_id(
payload['port']['network_id'], self.dhcp.conf.host)
payload['port']['fixed_ips'][0]['subnet_id'] = '77777-7777'
payload['port']['device_id'] = device_id
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
self.assertFalse(self.call_driver.called)
def test_port_update_change_ip_on_dhcp_agents_port(self):
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port1
payload = dict(port=copy.deepcopy(fake_port1), priority=FAKE_PRIORITY)
device_id = utils.get_dhcp_agent_device_id(
payload['port']['network_id'], self.dhcp.conf.host)
payload['port']['fixed_ips'][0]['ip_address'] = '172.9.9.99'
payload['port']['device_id'] = device_id
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
self.call_driver.assert_has_calls(
[mock.call.call_driver('restart', fake_network)])
def test_port_update_change_ip_on_dhcp_agents_port_cache_miss(self):
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = None
payload = dict(port=copy.deepcopy(fake_port1), priority=FAKE_PRIORITY)
device_id = utils.get_dhcp_agent_device_id(
payload['port']['network_id'], self.dhcp.conf.host)
payload['port']['fixed_ips'][0]['ip_address'] = '172.9.9.99'
payload['port']['device_id'] = device_id
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
self.schedule_resync.assert_called_once_with(mock.ANY,
fake_port1.network_id)
def test_port_create_duplicate_ip_on_dhcp_agents_same_network(self):
self.cache.get_network_by_id.return_value = fake_network
payload = dict(port=copy.deepcopy(fake_port2))
duplicate_ip = fake_port1['fixed_ips'][0]['ip_address']
payload['port']['fixed_ips'][0]['ip_address'] = duplicate_ip
self.dhcp.port_create_end(None, payload)
self.dhcp._process_resource_update()
self.schedule_resync.assert_called_once_with(mock.ANY,
fake_port2.network_id)
def test_port_update_on_dhcp_agents_port_no_ip_change(self):
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port1
payload = dict(port=fake_port1, priority=FAKE_PRIORITY)
device_id = utils.get_dhcp_agent_device_id(
payload['port']['network_id'], self.dhcp.conf.host)
payload['port']['device_id'] = device_id
self.dhcp.port_update_end(None, payload)
self.dhcp._process_resource_update()
self.call_driver.assert_has_calls(
[mock.call.call_driver('reload_allocations', fake_network)])
def test_port_delete_end_no_network_id(self):
payload = dict(port_id=fake_port2.id, priority=FAKE_PRIORITY)
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port2
with mock.patch.object(
self.dhcp, 'update_isolated_metadata_proxy') as ump:
self.dhcp.port_delete_end(None, payload)
self.dhcp._process_resource_update()
self.cache.assert_has_calls(
[mock.call.get_port_by_id(fake_port2.id),
mock.call.get_port_by_id(fake_port2.id),
mock.call.add_to_deleted_ports(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)])
self.assertTrue(ump.called)
def test_port_delete_end(self):
payload = dict(port_id=fake_port2.id, network_id=fake_network.id,
priority=FAKE_PRIORITY)
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = fake_port2
with mock.patch.object(
self.dhcp, 'update_isolated_metadata_proxy') as ump:
self.dhcp.port_delete_end(None, payload)
self.dhcp._process_resource_update()
self.cache.assert_has_calls(
[mock.call.get_port_by_id(fake_port2.id),
mock.call.add_to_deleted_ports(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)])
self.assertTrue(ump.called)
def test_port_delete_end_unknown_port(self):
payload = dict(port_id='unknown', network_id='unknown',
priority=FAKE_PRIORITY)
self.cache.get_port_by_id.return_value = None
self.dhcp.port_delete_end(None, payload)
self.dhcp._process_resource_update()
self.cache.assert_has_calls([mock.call.get_port_by_id('unknown')])
self.assertEqual(self.call_driver.call_count, 0)
def test_port_delete_end_agents_port(self):
port = dhcp.DictModel(copy.deepcopy(fake_port1))
device_id = utils.get_dhcp_agent_device_id(
port.network_id, self.dhcp.conf.host)
port['device_id'] = device_id
self.cache.get_network_by_id.return_value = fake_network
self.cache.get_port_by_id.return_value = port
self.dhcp.port_delete_end(None, {'port_id': port.id,
'network_id': fake_network.id,
'priority': FAKE_PRIORITY})
self.dhcp._process_resource_update()
self.call_driver.assert_has_calls(
[mock.call.call_driver('disable', fake_network)])
class TestDhcpPluginApiProxy(base.BaseTestCase):
def _test_dhcp_api(self, method, **kwargs):
proxy = dhcp_agent.DhcpPluginApi('foo', host='foo')
with mock.patch.object(proxy.client, 'call') as rpc_mock,\
mock.patch.object(proxy.client, 'prepare') as prepare_mock:
prepare_mock.return_value = proxy.client
rpc_mock.return_value = kwargs.pop('return_value', [])
prepare_args = {}
if 'version' in kwargs:
prepare_args['version'] = kwargs.pop('version')
retval = getattr(proxy, method)(**kwargs)
self.assertEqual(retval, rpc_mock.return_value)
prepare_mock.assert_called_once_with(**prepare_args)
kwargs['host'] = proxy.host
rpc_mock.assert_called_once_with(mock.ANY, method, **kwargs)
def test_get_active_networks_info(self):
self._test_dhcp_api('get_active_networks_info', version='1.1')
def test_get_network_info(self):
self._test_dhcp_api('get_network_info', network_id='fake_id',
return_value=None)
def test_create_dhcp_port(self):
self._test_dhcp_api('create_dhcp_port', port='fake_port',
return_value=None, version='1.1')
def test_update_dhcp_port(self):
self._test_dhcp_api('update_dhcp_port', port_id='fake_id',
port='fake_port', return_value=None, version='1.1')
def test_release_dhcp_port(self):
self._test_dhcp_api('release_dhcp_port', network_id='fake_id',
device_id='fake_id_2')
class TestNetworkCache(base.BaseTestCase):
def setUp(self):
super(TestNetworkCache, self).setUp()
self.nc = dhcp_agent.NetworkCache()
def test_update_of_deleted_port_ignored(self):
self.nc.put(fake_network)
self.nc.add_to_deleted_ports(fake_port2['id'])
self.assertTrue(self.nc.is_port_message_stale(fake_port2))
def test_stale_update_ignored(self):
self.nc.put(fake_network)
self.nc.put_port(fake_port2)
stale = copy.copy(fake_port2)
stale['revision_number'] = 2
self.assertTrue(self.nc.is_port_message_stale(stale))
def test_put_network(self):
self.nc.put(fake_network)
self.assertEqual(self.nc.cache,
{fake_network.id: fake_network})
self.assertEqual(self.nc.subnet_lookup,
{fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id})
self.assertEqual(self.nc.port_lookup,
{fake_port1.id: fake_network.id})
def test_put_network_existing(self):
prev_network_info = mock.Mock()
with mock.patch.object(self.nc, 'remove') as remove:
self.nc.cache[fake_network.id] = prev_network_info
self.nc.put(fake_network)
remove.assert_called_once_with(prev_network_info)
self.assertEqual(self.nc.cache,
{fake_network.id: fake_network})
self.assertEqual(self.nc.subnet_lookup,
{fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id})
self.assertEqual(self.nc.port_lookup,
{fake_port1.id: fake_network.id})
def test_remove_network(self):
self.nc.cache = {fake_network.id: fake_network}
self.nc.subnet_lookup = {fake_subnet1.id: fake_network.id,
fake_subnet2.id: fake_network.id}
self.nc.port_lookup = {fake_port1.id: fake_network.id}
self.nc.remove(fake_network)
self.assertEqual(0, len(self.nc.cache))
self.assertEqual(0, len(self.nc.subnet_lookup))
self.assertEqual(0, len(self.nc.port_lookup))
def test_get_network_by_id(self):
self.nc.put(fake_network)
self.assertEqual(self.nc.get_network_by_id(fake_network.id),
fake_network)
def test_get_network_ids(self):
self.nc.put(fake_network)
self.assertEqual(list(self.nc.get_network_ids()), [fake_network.id])
def test_get_network_by_subnet_id(self):
self.nc.put(fake_network)
self.assertEqual(self.nc.get_network_by_subnet_id(fake_subnet1.id),
fake_network)
def test_get_network_by_port_id(self):
self.nc.put(fake_network)
self.assertEqual(self.nc.get_network_by_port_id(fake_port1.id),
fake_network)
def test_get_port_ids(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port1]))
self.nc.put(fake_net)
self.nc.put_port(fake_port2)
self.assertEqual(set([fake_port1['id'], fake_port2['id']]),
set(self.nc.get_port_ids()))
def test_get_port_ids_limited_nets(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port1]))
fake_port2 = copy.deepcopy(fake_port1)
fake_port2['id'] = 'fp2'
fake_port2['network_id'] = '12345678-1234-5678-1234567890ac'
fake_net2 = dhcp.NetModel(
dict(id='12345678-1234-5678-1234567890ac',
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port2]))
self.nc.put(fake_net)
self.nc.put(fake_net2)
self.assertEqual(set([fake_port1['id']]),
set(self.nc.get_port_ids([fake_net.id, 'net2'])))
self.assertEqual(set(),
set(self.nc.get_port_ids(['net2'])))
self.assertEqual(set([fake_port2['id']]),
set(self.nc.get_port_ids([fake_port2.network_id,
'net2'])))
def test_put_port(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port1]))
self.nc.put(fake_net)
self.nc.put_port(fake_port2)
self.assertEqual(2, len(self.nc.port_lookup))
self.assertIn(fake_port2, fake_net.ports)
def test_put_port_existing(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port1, fake_port2]))
self.nc.put(fake_net)
self.nc.put_port(fake_port2)
self.assertEqual(2, len(self.nc.port_lookup))
self.assertIn(fake_port2, fake_net.ports)
def test_remove_port_existing(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID,
subnets=[fake_subnet1],
ports=[fake_port1, fake_port2]))
self.nc.put(fake_net)
self.nc.remove_port(fake_port2)
self.assertEqual(1, len(self.nc.port_lookup))
self.assertNotIn(fake_port2, fake_net.ports)
def test_get_port_by_id(self):
self.nc.put(fake_network)
self.assertEqual(self.nc.get_port_by_id(fake_port1.id), fake_port1)
def _reset_deleted_port_max_age(self, old_value):
dhcp_agent.DELETED_PORT_MAX_AGE = old_value
def test_cleanup_deleted_ports(self):
self.addCleanup(self._reset_deleted_port_max_age,
dhcp_agent.DELETED_PORT_MAX_AGE)
dhcp_agent.DELETED_PORT_MAX_AGE = 10
with mock.patch.object(timeutils, 'utcnow_ts') as mock_utcnow:
mock_utcnow.side_effect = [1, 2, 11]
self.nc.add_to_deleted_ports(fake_port1.id)
self.nc.add_to_deleted_ports(fake_port2.id)
self.nc.add_to_deleted_ports(fake_port2.id)
self.assertEqual({fake_port1.id, fake_port2.id},
self.nc._deleted_ports)
self.assertEqual([(1, fake_port1.id), (2, fake_port2.id)],
self.nc._deleted_ports_ts)
self.nc.cleanup_deleted_ports()
self.assertEqual({fake_port2.id}, self.nc._deleted_ports)
self.assertEqual([(2, fake_port2.id)], self.nc._deleted_ports_ts)
def test_cleanup_deleted_ports_no_old_ports(self):
self.addCleanup(self._reset_deleted_port_max_age,
dhcp_agent.DELETED_PORT_MAX_AGE)
dhcp_agent.DELETED_PORT_MAX_AGE = 10
with mock.patch.object(timeutils, 'utcnow_ts') as mock_utcnow:
mock_utcnow.side_effect = [1, 2, 3]
self.nc.add_to_deleted_ports(fake_port1.id)
self.nc.add_to_deleted_ports(fake_port2.id)
self.assertEqual({fake_port1.id, fake_port2.id},
self.nc._deleted_ports)
self.assertEqual([(1, fake_port1.id), (2, fake_port2.id)],
self.nc._deleted_ports_ts)
self.nc.cleanup_deleted_ports()
self.assertEqual({fake_port1.id, fake_port2.id},
self.nc._deleted_ports)
self.assertEqual([(1, fake_port1.id), (2, fake_port2.id)],
self.nc._deleted_ports_ts)
def test_cleanup_deleted_ports_no_ports(self):
self.assertEqual(set(), self.nc._deleted_ports)
self.assertEqual([], self.nc._deleted_ports_ts)
self.nc.cleanup_deleted_ports()
self.assertEqual(set(), self.nc._deleted_ports)
self.assertEqual([], self.nc._deleted_ports_ts)
def test_cleanup_deleted_ports_loop_call(self):
self.addCleanup(self._reset_deleted_port_max_age,
dhcp_agent.DELETED_PORT_MAX_AGE)
dhcp_agent.DELETED_PORT_MAX_AGE = 2
nc = dhcp_agent.NetworkCache()
nc.add_to_deleted_ports(fake_port1.id)
utils.wait_until_true(lambda: nc._deleted_ports == set(), timeout=7)
class FakePort1(object):
def __init__(self):
self.id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee'
class FakePort2(object):
def __init__(self):
self.id = 'ffffffff-ffff-ffff-ffff-ffffffffffff'
class FakeV4Subnet(object):
def __init__(self):
self.id = 'dddddddd-dddd-dddd-dddd-dddddddddddd'
self.ip_version = const.IP_VERSION_4
self.cidr = '192.168.0.0/24'
self.gateway_ip = '192.168.0.1'
self.enable_dhcp = True
class FakeV6Subnet(object):
def __init__(self):
self.id = 'ffffffff-ffff-ffff-ffff-ffffffffffff'
self.ip_version = const.IP_VERSION_6
self.cidr = '2001:db8:0:1::/64'
self.gateway_ip = '2001:db8:0:1::1'
self.enable_dhcp = True
class FakeV4SubnetOutsideGateway(FakeV4Subnet):
def __init__(self):
super(FakeV4SubnetOutsideGateway, self).__init__()
self.gateway_ip = '192.168.1.1'
class FakeV6SubnetOutsideGateway(FakeV6Subnet):
def __init__(self):
super(FakeV6SubnetOutsideGateway, self).__init__()
self.gateway_ip = '2001:db8:1:1::1'
class FakeV4SubnetNoGateway(object):
def __init__(self):
self.id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee'
self.ip_version = const.IP_VERSION_4
self.cidr = '192.168.1.0/24'
self.gateway_ip = None
self.enable_dhcp = True
class FakeV6SubnetNoGateway(object):
def __init__(self):
self.id = 'ffffffff-ffff-ffff-ffff-ffffffffffff'
self.ip_version = const.IP_VERSION_6
self.cidr = '2001:db8:1:0::/64'
self.gateway_ip = None
self.enable_dhcp = True
class FakeV4Network(object):
def __init__(self):
self.id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
self.subnets = [FakeV4Subnet()]
self.ports = [FakePort1()]
self.namespace = 'qdhcp-aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
class FakeDualNetwork(object):
def __init__(self):
self.id = 'dddddddd-dddd-dddd-dddd-dddddddddddd'
self.subnets = [FakeV4Subnet(), FakeV6Subnet()]
self.ports = [FakePort1(), FakePort2()]
self.namespace = 'qdhcp-dddddddd-dddd-dddd-dddd-dddddddddddd'
class FakeV4NetworkOutsideGateway(FakeV4Network):
def __init__(self):
super(FakeV4NetworkOutsideGateway, self).__init__()
self.subnets = [FakeV4SubnetOutsideGateway()]
class FakeDualNetworkOutsideGateway(FakeDualNetwork):
def __init__(self):
super(FakeDualNetworkOutsideGateway, self).__init__()
self.subnets = [FakeV4SubnetOutsideGateway(),
FakeV6SubnetOutsideGateway()]
class FakeDualNetworkNoSubnet(object):
def __init__(self):
self.id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa'
self.subnets = []
self.ports = []
class FakeDualNetworkNoGateway(object):
def __init__(self):
self.id = 'cccccccc-cccc-cccc-cccc-cccccccccccc'
self.subnets = [FakeV4SubnetNoGateway(), FakeV6SubnetNoGateway()]
self.ports = [FakePort1(), FakePort2()]
class TestDeviceManager(base.BaseTestCase):
def setUp(self):
super(TestDeviceManager, self).setUp()
config.register_interface_driver_opts_helper(cfg.CONF)
cfg.CONF.register_opts(dhcp_config.DHCP_AGENT_OPTS)
cfg.CONF.set_override('interface_driver',
'neutron.agent.linux.interface.NullDriver')
cfg.CONF.set_override('enable_isolated_metadata', True)
self.ensure_device_is_ready_p = mock.patch(
'neutron.agent.linux.ip_lib.ensure_device_is_ready')
self.ensure_device_is_ready = (self.ensure_device_is_ready_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_driver.use_gateway_ips = False
self.mock_iproute = mock.MagicMock()
driver_cls.return_value = self.mock_driver
iproute_cls.return_value = self.mock_iproute
iptables_cls_p = mock.patch(
'neutron.agent.linux.iptables_manager.IptablesManager')
iptables_cls = iptables_cls_p.start()
self.iptables_inst = mock.Mock()
iptables_cls.return_value = self.iptables_inst
self.mangle_inst_v4 = mock.Mock()
self.iptables_inst.ipv4 = {'mangle': self.mangle_inst_v4}
self.mangle_inst_v6 = mock.Mock()
self.iptables_inst.ipv6 = {'mangle': self.mangle_inst_v6}
self.mock_ip_wrapper_p = mock.patch("neutron.agent.linux.ip_lib."
"IPWrapper")
self.mock_ip_wrapper = self.mock_ip_wrapper_p.start()
self.mock_ipv6_enabled_p = mock.patch('neutron.common.ipv6_utils.'
'is_enabled_and_bind_by_default')
self.mock_ipv6_enabled = self.mock_ipv6_enabled_p.start()
self.mock_ipv6_enabled.return_value = True
def _test_setup_helper(self, device_is_ready, ipv6_enabled=True,
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
self.ensure_device_is_ready.return_value = device_is_ready
self.mock_driver.get_device_name.return_value = 'tap12345678-12'
dh = dhcp.DeviceManager(cfg.CONF, plugin)
dh._set_default_route = mock.Mock()
dh._cleanup_stale_devices = mock.Mock()
interface_name = dh.setup(net)
self.assertEqual('tap12345678-12', interface_name)
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': port.fixed_ips[0].subnet_id}],
'device_id': mock.ANY}})])
if port == fake_ipv6_port:
expected_ips = ['2001:db8::a8bb:ccff:fedd:ee99/64',
'169.254.169.254/16']
else:
expected_ips = ['172.9.9.9/24', '169.254.169.254/16']
expected = [mock.call.get_device_name(port)]
if ipv6_enabled:
expected.append(
mock.call.configure_ipv6_ra(net.namespace, 'default', 0))
if not device_is_ready:
expected.append(mock.call.plug(net.id,
port.id,
'tap12345678-12',
'aa:bb:cc:dd:ee:ff',
namespace=net.namespace,
mtu=None))
expected.append(mock.call.init_l3(
'tap12345678-12',
expected_ips,
namespace=net.namespace))
self.mock_driver.assert_has_calls(expected)
dh._set_default_route.assert_called_once_with(net, 'tap12345678-12')
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_without_ipv6_enabled(self):
# NOTE(mjozefcz): This test checks if IPv6 RA is *not*
# configured when host doesn't support IPv6.
self.mock_ipv6_enabled.return_value = False
self._test_setup_helper(False, ipv6_enabled=False)
def test_setup_calls_fill_dhcp_udp_checksums_v4(self):
self._test_setup_helper(False)
rule = ('-p udp -m udp --dport %d -j CHECKSUM --checksum-fill'
% const.DHCP_RESPONSE_PORT)
expected = [mock.call.add_rule('POSTROUTING', rule)]
self.mangle_inst_v4.assert_has_calls(expected)
def test_setup_calls_fill_dhcp_udp_checksums_v6(self):
self._test_setup_helper(False)
rule = ('-p udp -m udp --dport %d -j CHECKSUM --checksum-fill'
% const.DHCPV6_CLIENT_PORT)
expected = [mock.call.add_rule('POSTROUTING', rule)]
self.mangle_inst_v6.assert_has_calls(expected)
def test_setup_dhcp_port_doesnt_orphan_devices(self):
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
plugin = mock.Mock()
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.return_value = None
net = copy.deepcopy(fake_network)
plugin.create_dhcp_port.side_effect = exceptions.Conflict()
dh = dhcp.DeviceManager(cfg.CONF, plugin)
clean = mock.patch.object(dh, '_cleanup_stale_devices').start()
with testtools.ExpectedException(exceptions.Conflict):
dh.setup(net)
clean.assert_called_once_with(net, dhcp_port=None)
def test_setup_create_dhcp_port(self):
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
plugin = mock.Mock()
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.return_value = None
net = copy.deepcopy(fake_network)
plugin.create_dhcp_port.return_value = fake_dhcp_port
dh = dhcp.DeviceManager(cfg.CONF, plugin)
dh.setup(net)
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_dhcp_port.fixed_ips[0].subnet_id}],
'device_id': mock.ANY}})])
self.assertIn(fake_dhcp_port, net.ports)
def test_setup_plug_exception(self):
plugin = mock.Mock()
plugin.create_dhcp_port.return_value = fake_dhcp_port
self.ensure_device_is_ready.return_value = False
self.mock_driver.get_device_name.return_value = 'tap12345678-12'
dh = dhcp.DeviceManager(cfg.CONF, plugin)
dh._set_default_route = mock.Mock()
dh._cleanup_stale_devices = mock.Mock()
dh.driver = mock.Mock()
dh.driver.plug.side_effect = OSError()
net = copy.deepcopy(fake_network)
self.assertRaises(OSError, dh.setup, net)
dh.driver.unplug.assert_called_once_with(mock.ANY,
namespace=net.namespace)
plugin.release_dhcp_port.assert_called_once_with(
net.id, mock.ANY)
def test_setup_ipv6(self):
self._test_setup_helper(True, net=fake_network_ipv6,
port=fake_ipv6_port)
def test_setup_device_is_ready(self):
self._test_setup_helper(True)
def test_create_dhcp_port_raise_conflict(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, 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, 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_bug_1627480(self):
# this can go away once bug/1627480 is fixed
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, 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]
with testtools.ExpectedException(exceptions.SubnetMismatchForPort):
dh.setup_dhcp_port(fake_network_copy)
def test_create_dhcp_port_update_add_subnet(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, 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
updated_port = copy.deepcopy(fake_network_copy.ports[0])
updated_port.fixed_ips.append(fake_fixed_ip_subnet2)
plugin.update_dhcp_port.return_value = updated_port
dh.setup_dhcp_port(fake_network_copy)
port_body = {'port': {
'network_id': fake_network.id,
'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, 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, 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_setup_dhcp_port_with_non_enable_dhcp_subnet(self):
plugin = mock.Mock()
dh = dhcp.DeviceManager(cfg.CONF, plugin)
fake_network_copy = copy.deepcopy(fake_network)
fake_network_copy.ports[0].device_id = dh.get_device_id(fake_network)
plugin.update_dhcp_port.return_value = fake_port1
self.assertEqual(fake_subnet1.id,
dh.setup_dhcp_port(fake_network_copy).fixed_ips[0].subnet_id)
def test_destroy(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID))
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()
dh = dhcp.DeviceManager(cfg.CONF, 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_destroy_with_none(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID))
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()
dh = dhcp.DeviceManager(cfg.CONF, plugin)
dh.destroy(fake_net, None)
dvr_cls.assert_called_once_with(cfg.CONF)
plugin.assert_has_calls(
[mock.call.release_dhcp_port(fake_net.id, mock.ANY)])
self.assertFalse(mock_driver.called)
def test_get_interface_name(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID))
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()
dh = dhcp.DeviceManager(cfg.CONF, 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(0, len(plugin.mock_calls))
def test_get_device_id(self):
fake_net = dhcp.NetModel(
dict(id=FAKE_NETWORK_UUID,
tenant_id=FAKE_TENANT_ID))
expected = ('dhcp1ae5f96c-c527-5079-82ea-371a01645457-12345678-1234-'
'5678-1234567890ab')
# the DHCP port name only contains the hostname and not the domain name
local_hostname = cfg.CONF.host.split('.')[0]
with mock.patch('uuid.uuid5') as uuid5:
uuid5.return_value = '1ae5f96c-c527-5079-82ea-371a01645457'
dh = dhcp.DeviceManager(cfg.CONF, None)
self.assertEqual(expected, dh.get_device_id(fake_net))
uuid5.assert_called_once_with(uuid.NAMESPACE_DNS, local_hostname)
def test_update(self):
# Try with namespaces and no metadata network
cfg.CONF.set_override('enable_metadata_network', False)
dh = dhcp.DeviceManager(cfg.CONF, None)
dh._set_default_route = mock.Mock()
network = mock.Mock()
dh.update(network, 'ns-12345678-12')
dh._set_default_route.assert_called_once_with(network,
'ns-12345678-12')
# Meta data network enabled, don't interfere with its gateway.
cfg.CONF.set_override('enable_metadata_network', True)
dh = dhcp.DeviceManager(cfg.CONF, None)
dh._set_default_route = mock.Mock()
dh.update(FakeV4Network(), 'ns-12345678-12')
self.assertTrue(dh._set_default_route.called)
def test_set_default_route(self):
dh = dhcp.DeviceManager(cfg.CONF, None)
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.return_value = None
# Basic one subnet with gateway.
network = FakeV4Network()
dh._set_default_route(network, 'tap-name')
self.assertEqual(2, device.route.get_gateway.call_count)
self.assertFalse(device.route.delete_gateway.called)
device.route.add_gateway.assert_called_once_with('192.168.0.1')
def test_set_default_route_outside_subnet(self):
dh = dhcp.DeviceManager(cfg.CONF, None)
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.return_value = None
# Basic one subnet with gateway outside the subnet.
network = FakeV4NetworkOutsideGateway()
dh._set_default_route(network, 'tap-name')
self.assertEqual(2, device.route.get_gateway.call_count)
self.assertFalse(device.route.delete_gateway.called)
device.route.add_route.assert_called_once_with('192.168.1.1',
scope='link')
device.route.add_gateway.assert_called_once_with('192.168.1.1')
def test_set_default_route_no_subnet(self):
dh = dhcp.DeviceManager(cfg.CONF, None)
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.return_value = None
network = FakeDualNetworkNoSubnet()
network.namespace = 'qdhcp-1234'
dh._set_default_route(network, 'tap-name')
self.assertEqual(2, device.route.get_gateway.call_count)
self.assertFalse(device.route.delete_gateway.called)
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_no_subnet_delete_gateway(self):
dh = dhcp.DeviceManager(cfg.CONF, None)
v4_gateway = '192.168.0.1'
v6_gateway = '2001:db8:0:1::1'
expected = [mock.call(v4_gateway),
mock.call(v6_gateway)]
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.side_effect = [
dict(gateway=v4_gateway), dict(gateway=v6_gateway)]
network = FakeDualNetworkNoSubnet()
network.namespace = 'qdhcp-1234'
dh._set_default_route(network, 'tap-name')
self.assertEqual(2, device.route.get_gateway.call_count)
self.assertEqual(2, device.route.delete_gateway.call_count)
device.route.delete_gateway.assert_has_calls(expected)
self.assertFalse(device.route.add_gateway.called)
def test_set_default_route_no_gateway(self):
dh = dhcp.DeviceManager(cfg.CONF, None)
v4_gateway = '192.168.0.1'
v6_gateway = '2001:db8:0:1::1'
expected = [mock.call(v4_gateway),
mock.call(v6_gateway)]
with mock.patch.object(dhcp.ip_lib, 'IPDevice') as mock_IPDevice:
device = mock.Mock()
mock_IPDevice.return_value = device
device.route.get_gateway.side_effect = [
dict(gateway=v4_gateway), dict(gateway=v6_gateway)]
network = FakeDualNetworkNoGateway()
network.namespace = 'qdhcp-1234'
dh._set_default_route(network, 'tap-name')
self.assertEqual(2, device.route.get_gateway.call_count)
self.assertEqual(2, device.route.delete_gateway.call_count)