/usr/lib/python2.7/dist-packages/neutron_lbaas/tests/unit/services/loadbalancer/drivers/haproxy/test_namespace_driver.py is in python-neutron-lbaas 2:8.0.0-0ubuntu1.
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#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import contextlib
import mock
from neutron_lib import exceptions
import six
from neutron_lbaas.services.loadbalancer.drivers.haproxy \
import namespace_driver
from neutron_lbaas.tests import base
class TestHaproxyNSDriver(base.BaseTestCase):
def setUp(self):
super(TestHaproxyNSDriver, self).setUp()
conf = mock.Mock()
conf.haproxy.loadbalancer_state_path = '/the/path'
conf.interface_driver = 'intdriver'
conf.haproxy.user_group = 'test_group'
conf.haproxy.send_gratuitous_arp = 3
self.conf = conf
self.rpc_mock = mock.Mock()
with mock.patch(
'neutron.common.utils.load_class_by_alias_or_classname'):
self.driver = namespace_driver.HaproxyNSDriver(
conf,
self.rpc_mock
)
self.vif_driver = mock.Mock()
self.driver.vif_driver = self.vif_driver
self.fake_config = {
'pool': {'id': 'pool_id', 'status': 'ACTIVE',
'admin_state_up': True},
'vip': {'id': 'vip_id', 'port': {'id': 'port_id'},
'address': '10.0.0.2',
'status': 'ACTIVE', 'admin_state_up': True}
}
def _ip_mock_call(self, ns=None):
kwargs = {}
if ns:
kwargs['namespace'] = ns
return mock.call(**kwargs)
def test_get_name(self):
self.assertEqual(namespace_driver.DRIVER_NAME, self.driver.get_name())
def test_create(self):
with mock.patch.object(self.driver, '_plug') as plug:
with mock.patch.object(self.driver, '_spawn') as spawn:
self.driver.create(self.fake_config)
plug.assert_called_once_with(
'qlbaas-pool_id', {'id': 'port_id'}, '10.0.0.2'
)
spawn.assert_called_once_with(self.fake_config)
def test_update(self):
with contextlib.nested(
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch.object(self.driver, '_spawn'),
mock.patch.object(six.moves.builtins, 'open')
) as (gsp, spawn, mock_open):
mock_open.return_value = ['5']
self.driver.update(self.fake_config)
mock_open.assert_called_once_with(gsp.return_value, 'r')
spawn.assert_called_once_with(self.fake_config, ['-sf', '5'])
def test_spawn(self):
with contextlib.nested(
mock.patch.object(namespace_driver.hacfg, 'save_config'),
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper')
) as (mock_save, gsp, ip_wrap):
gsp.side_effect = lambda x, y: y
self.driver._spawn(self.fake_config)
mock_save.assert_called_once_with('conf', self.fake_config,
'sock', 'test_group')
cmd = ['haproxy', '-f', 'conf', '-p', 'pid']
ip_wrap.assert_has_calls([
self._ip_mock_call('qlbaas-pool_id'),
mock.call().netns.execute(cmd)
])
def test_undeploy_instance(self):
with contextlib.nested(
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch.object(namespace_driver, 'kill_pids_in_file'),
mock.patch.object(self.driver, '_unplug'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
mock.patch('os.path.isdir'),
mock.patch('shutil.rmtree')
) as (gsp, kill, unplug, ip_wrap, isdir, rmtree):
gsp.side_effect = lambda x, y: '/pool/' + y
self.driver.pool_to_port_id['pool_id'] = 'port_id'
isdir.return_value = True
self.driver.undeploy_instance('pool_id', delete_namespace=True)
kill.assert_called_once_with('/pool/pid')
unplug.assert_called_once_with('qlbaas-pool_id', 'port_id')
isdir.assert_called_once_with('/pool')
rmtree.assert_called_once_with('/pool')
ip_wrap.assert_has_calls([
self._ip_mock_call('qlbaas-pool_id'),
mock.call().garbage_collect_namespace()
])
def test_undeploy_instance_with_ns_cleanup(self):
with contextlib.nested(
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch.object(self.driver, 'vif_driver'),
mock.patch.object(namespace_driver, 'kill_pids_in_file'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
mock.patch('os.path.isdir'),
mock.patch('shutil.rmtree')
) as (gsp, vif, kill, ip_wrap, isdir, rmtree):
device = mock.Mock()
device_name = 'port_device'
device.name = device_name
ip_wrap.return_value.get_devices.return_value = [device]
self.driver.undeploy_instance('pool_id', cleanup_namespace=True)
vif.unplug.assert_called_once_with(device_name,
namespace='qlbaas-pool_id')
def test_remove_orphans(self):
with contextlib.nested(
mock.patch.object(self.driver, 'exists'),
mock.patch.object(self.driver, 'undeploy_instance'),
mock.patch('os.listdir'),
mock.patch('os.path.exists')
) as (exists, undeploy, listdir, path_exists):
known = ['known1', 'known2']
unknown = ['unknown1', 'unknown2']
listdir.return_value = known + unknown
exists.side_effect = lambda x: x == 'unknown2'
self.driver.remove_orphans(known)
undeploy.assert_called_once_with('unknown2',
cleanup_namespace=True)
def test_exists(self):
with contextlib.nested(
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
mock.patch('socket.socket'),
mock.patch('os.path.exists'),
) as (gsp, ip_wrap, socket, path_exists):
gsp.side_effect = lambda x, y, z: '/pool/' + y
ip_wrap.return_value.netns.exists.return_value = True
path_exists.return_value = True
self.driver.exists('pool_id')
ip_wrap.assert_has_calls([
self._ip_mock_call(),
mock.call().netns.exists('qlbaas-pool_id')
])
self.assertTrue(self.driver.exists('pool_id'))
def test_get_stats(self):
raw_stats = ('# pxname,svname,qcur,qmax,scur,smax,slim,stot,bin,bout,'
'dreq,dresp,ereq,econ,eresp,wretr,wredis,status,weight,'
'act,bck,chkfail,chkdown,lastchg,downtime,qlimit,pid,iid,'
'sid,throttle,lbtot,tracked,type,rate,rate_lim,rate_max,'
'check_status,check_code,check_duration,hrsp_1xx,'
'hrsp_2xx,hrsp_3xx,hrsp_4xx,hrsp_5xx,hrsp_other,hanafail,'
'req_rate,req_rate_max,req_tot,cli_abrt,srv_abrt,\n'
'8e271901-69ed-403e-a59b-f53cf77ef208,BACKEND,1,2,3,4,0,'
'10,7764,2365,0,0,,0,0,0,0,UP,1,1,0,,0,103780,0,,1,2,0,,0'
',,1,0,,0,,,,0,0,0,0,0,0,,,,,0,0,\n\n'
'a557019b-dc07-4688-9af4-f5cf02bb6d4b,'
'32a6c2a3-420a-44c3-955d-86bd2fc6871e,0,0,0,1,,7,1120,'
'224,,0,,0,0,0,0,UP,1,1,0,0,1,2623,303,,1,2,1,,7,,2,0,,'
'1,L7OK,200,98,0,7,0,0,0,0,0,,,,0,0,\n'
'a557019b-dc07-4688-9af4-f5cf02bb6d4b,'
'd9aea044-8867-4e80-9875-16fb808fa0f9,0,0,0,2,,12,0,0,,'
'0,,0,0,8,4,DOWN,1,1,0,9,2,308,675,,1,2,2,,4,,2,0,,2,'
'L4CON,,2999,0,0,0,0,0,0,0,,,,0,0,\n')
raw_stats_empty = ('# pxname,svname,qcur,qmax,scur,smax,slim,stot,bin,'
'bout,dreq,dresp,ereq,econ,eresp,wretr,wredis,'
'status,weight,act,bck,chkfail,chkdown,lastchg,'
'downtime,qlimit,pid,iid,sid,throttle,lbtot,'
'tracked,type,rate,rate_lim,rate_max,check_status,'
'check_code,check_duration,hrsp_1xx,hrsp_2xx,'
'hrsp_3xx,hrsp_4xx,hrsp_5xx,hrsp_other,hanafail,'
'req_rate,req_rate_max,req_tot,cli_abrt,srv_abrt,'
'\n')
with contextlib.nested(
mock.patch.object(self.driver, '_get_state_file_path'),
mock.patch('socket.socket'),
mock.patch('os.path.exists'),
) as (gsp, socket, path_exists):
gsp.side_effect = lambda x, y, z: '/pool/' + y
path_exists.return_value = True
socket.return_value = socket
socket.recv.return_value = raw_stats
exp_stats = {'connection_errors': '0',
'active_connections': '3',
'current_sessions': '3',
'bytes_in': '7764',
'max_connections': '4',
'max_sessions': '4',
'bytes_out': '2365',
'response_errors': '0',
'total_sessions': '10',
'total_connections': '10',
'members': {
'32a6c2a3-420a-44c3-955d-86bd2fc6871e': {
'status': 'ACTIVE',
'health': 'L7OK',
'failed_checks': '0'
},
'd9aea044-8867-4e80-9875-16fb808fa0f9': {
'status': 'INACTIVE',
'health': 'L4CON',
'failed_checks': '9'
}
}
}
stats = self.driver.get_stats('pool_id')
self.assertEqual(exp_stats, stats)
socket.recv.return_value = raw_stats_empty
self.assertEqual({'members': {}}, self.driver.get_stats('pool_id'))
path_exists.return_value = False
socket.reset_mock()
self.assertEqual({}, self.driver.get_stats('pool_id'))
self.assertFalse(socket.called)
def test_plug(self):
test_port = {'id': 'port_id',
'network_id': 'net_id',
'mac_address': 'mac_addr',
'fixed_ips': [{'ip_address': '10.0.0.2',
'subnet': {'cidr': '10.0.0.0/24',
'gateway_ip': '10.0.0.1'}}]}
test_address = '10.0.0.2'
with contextlib.nested(
mock.patch('neutron.agent.linux.ip_lib.device_exists'),
mock.patch('netaddr.IPNetwork'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
) as (dev_exists, ip_net, ip_wrap):
self.vif_driver.get_device_name.return_value = 'test_interface'
dev_exists.return_value = False
ip_net.return_value = ip_net
ip_net.prefixlen = 24
self.driver._plug('test_ns', test_port, test_address)
self.rpc_mock.plug_vip_port.assert_called_once_with(
test_port['id'])
self.assertTrue(dev_exists.called)
self.vif_driver.plug.assert_called_once_with('net_id', 'port_id',
'test_interface',
'mac_addr',
namespace='test_ns')
self.vif_driver.init_l3.assert_called_once_with(
'test_interface',
['10.0.0.2/24'],
namespace='test_ns'
)
cmd = ['route', 'add', 'default', 'gw', '10.0.0.1']
cmd_arping = ['arping', '-U', '-I',
'test_interface', '-c',
self.conf.haproxy.send_gratuitous_arp, '10.0.0.2']
ip_wrap.assert_has_calls([
self._ip_mock_call('test_ns'),
mock.call().netns.execute(cmd, check_exit_code=False),
mock.call().netns.execute(cmd_arping, check_exit_code=False),
])
dev_exists.return_value = True
self.assertRaises(exceptions.PreexistingDeviceFailure,
self.driver._plug, 'test_ns', test_port,
test_address, False)
def test_plug_not_send_gratuitous_arp(self):
self.conf.haproxy.send_gratuitous_arp = 0
test_port = {'id': 'port_id',
'network_id': 'net_id',
'mac_address': 'mac_addr',
'fixed_ips': [{'ip_address': '10.0.0.2',
'subnet': {'cidr': '10.0.0.0/24',
'gateway_ip': '10.0.0.1'}}]}
test_address = '10.0.0.2'
with contextlib.nested(
mock.patch('neutron.agent.linux.ip_lib.device_exists'),
mock.patch('netaddr.IPNetwork'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
) as (dev_exists, ip_net, ip_wrap):
self.vif_driver.get_device_name.return_value = 'test_interface'
dev_exists.return_value = False
ip_net.return_value = ip_net
ip_net.prefixlen = 24
self.driver._plug('test_ns', test_port, test_address)
cmd = ['route', 'add', 'default', 'gw', '10.0.0.1']
expected = [
self._ip_mock_call('test_ns'),
mock.call().netns.execute(cmd, check_exit_code=False)]
self.assertEqual(expected, ip_wrap.mock_calls)
def test_plug_no_gw(self):
test_port = {'id': 'port_id',
'network_id': 'net_id',
'mac_address': 'mac_addr',
'fixed_ips': [{'ip_address': '10.0.0.2',
'subnet': {'cidr': '10.0.0.0/24'}}]}
test_address = '10.0.0.2'
with contextlib.nested(
mock.patch('neutron.agent.linux.ip_lib.device_exists'),
mock.patch('netaddr.IPNetwork'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
) as (dev_exists, ip_net, ip_wrap):
self.vif_driver.get_device_name.return_value = 'test_interface'
dev_exists.return_value = False
ip_net.return_value = ip_net
ip_net.prefixlen = 24
self.driver._plug('test_ns', test_port, test_address)
self.rpc_mock.plug_vip_port.assert_called_once_with(
test_port['id'])
self.assertTrue(dev_exists.called)
self.vif_driver.plug.assert_called_once_with('net_id', 'port_id',
'test_interface',
'mac_addr',
namespace='test_ns')
self.vif_driver.init_l3.assert_called_once_with(
'test_interface',
['10.0.0.2/24'],
namespace='test_ns'
)
self.assertFalse(ip_wrap.called)
dev_exists.return_value = True
self.assertRaises(exceptions.PreexistingDeviceFailure,
self.driver._plug, 'test_ns', test_port,
test_address, False)
def test_plug_gw_in_host_routes(self):
test_port = {'id': 'port_id',
'network_id': 'net_id',
'mac_address': 'mac_addr',
'fixed_ips': [{'ip_address': '10.0.0.2',
'subnet': {'cidr': '10.0.0.0/24',
'host_routes':
[{'destination': '0.0.0.0/0',
'nexthop': '10.0.0.1'}]}}]}
test_address = '10.0.0.2'
with contextlib.nested(
mock.patch('neutron.agent.linux.ip_lib.device_exists'),
mock.patch('netaddr.IPNetwork'),
mock.patch('neutron.agent.linux.ip_lib.IPWrapper'),
) as (dev_exists, ip_net, ip_wrap):
self.vif_driver.get_device_name.return_value = 'test_interface'
dev_exists.return_value = False
ip_net.return_value = ip_net
ip_net.prefixlen = 24
self.driver._plug('test_ns', test_port, test_address)
self.rpc_mock.plug_vip_port.assert_called_once_with(
test_port['id'])
self.assertTrue(dev_exists.called)
self.vif_driver.plug.assert_called_once_with('net_id', 'port_id',
'test_interface',
'mac_addr',
namespace='test_ns')
self.vif_driver.init_l3.assert_called_once_with(
'test_interface',
['10.0.0.2/24'],
namespace='test_ns'
)
cmd = ['route', 'add', 'default', 'gw', '10.0.0.1']
ip_wrap.assert_has_calls([
self._ip_mock_call('test_ns'),
mock.call().netns.execute(cmd, check_exit_code=False),
])
def test_unplug(self):
self.vif_driver.get_device_name.return_value = 'test_interface'
self.driver._unplug('test_ns', 'port_id')
self.rpc_mock.unplug_vip_port.assert_called_once_with('port_id')
self.vif_driver.unplug('test_interface', namespace='test_ns')
def test_kill_pids_in_file(self):
with contextlib.nested(
mock.patch('os.path.exists'),
mock.patch.object(six.moves.builtins, 'open'),
mock.patch('neutron.agent.linux.utils.execute'),
mock.patch.object(namespace_driver.LOG, 'exception'),
) as (path_exists, mock_open, mock_execute, mock_log):
file_mock = mock.MagicMock()
mock_open.return_value = file_mock
file_mock.__enter__.return_value = file_mock
file_mock.__iter__.return_value = iter(['123'])
path_exists.return_value = False
namespace_driver.kill_pids_in_file('test_path')
path_exists.assert_called_once_with('test_path')
self.assertFalse(mock_open.called)
self.assertFalse(mock_execute.called)
path_exists.return_value = True
mock_execute.side_effect = RuntimeError
namespace_driver.kill_pids_in_file('test_path')
self.assertTrue(mock_log.called)
mock_execute.assert_called_once_with(
['kill', '-9', '123'], run_as_root=True)
def test_get_state_file_path(self):
with mock.patch('os.makedirs') as mkdir:
path = self.driver._get_state_file_path('pool_id', 'conf')
self.assertEqual('/the/path/pool_id/conf', path)
mkdir.assert_called_once_with('/the/path/pool_id', 0o755)
def test_deploy_instance(self):
with mock.patch.object(self.driver, 'exists') as exists:
with mock.patch.object(self.driver, 'update') as update:
self.driver.deploy_instance(self.fake_config)
exists.assert_called_once_with(self.fake_config['pool']['id'])
update.assert_called_once_with(self.fake_config)
def test_deploy_instance_non_existing(self):
with mock.patch.object(self.driver, 'exists') as exists:
with mock.patch.object(self.driver, 'create') as create:
exists.return_value = False
self.driver.deploy_instance(self.fake_config)
exists.assert_called_once_with(self.fake_config['pool']['id'])
create.assert_called_once_with(self.fake_config)
def test_deploy_instance_vip_status_non_active(self):
with mock.patch.object(self.driver, 'exists') as exists:
self.fake_config['vip']['status'] = 'NON_ACTIVE'
self.driver.deploy_instance(self.fake_config)
self.assertFalse(exists.called)
def test_deploy_instance_vip_admin_state_down(self):
with mock.patch.object(self.driver, 'exists') as exists:
self.fake_config['vip']['admin_state_up'] = False
self.driver.deploy_instance(self.fake_config)
self.assertFalse(exists.called)
def test_deploy_instance_no_vip(self):
with mock.patch.object(self.driver, 'exists') as exists:
del self.fake_config['vip']
self.driver.deploy_instance(self.fake_config)
self.assertFalse(exists.called)
def test_deploy_instance_pool_status_non_active(self):
with mock.patch.object(self.driver, 'exists') as exists:
self.fake_config['pool']['status'] = 'NON_ACTIVE'
self.driver.deploy_instance(self.fake_config)
self.assertFalse(exists.called)
def test_deploy_instance_pool_admin_state_down(self):
with mock.patch.object(self.driver, 'exists') as exists:
with mock.patch.object(self.driver, 'update') as update:
self.fake_config['pool']['admin_state_up'] = False
self.driver.deploy_instance(self.fake_config)
exists.assert_called_once_with(self.fake_config['pool']['id'])
update.assert_called_once_with(self.fake_config)
def test_refresh_device(self):
with contextlib.nested(
mock.patch.object(self.driver, 'deploy_instance'),
mock.patch.object(self.driver, 'undeploy_instance')
) as (deploy, undeploy):
pool_id = 'pool_id1'
self.driver._refresh_device(pool_id)
self.rpc_mock.get_logical_device.assert_called_once_with(pool_id)
deploy.assert_called_once_with(
self.rpc_mock.get_logical_device.return_value)
self.assertFalse(undeploy.called)
def test_refresh_device_not_deployed(self):
with contextlib.nested(
mock.patch.object(self.driver, 'deploy_instance'),
mock.patch.object(self.driver, 'exists'),
mock.patch.object(self.driver, 'undeploy_instance')
) as (deploy, exists, undeploy):
pool_id = 'pool_id1'
deploy.return_value = False
exists.return_value = True
self.driver._refresh_device(pool_id)
undeploy.assert_called_once_with(pool_id)
def test_refresh_device_non_existing(self):
with contextlib.nested(
mock.patch.object(self.driver, 'deploy_instance'),
mock.patch.object(self.driver, 'exists'),
mock.patch.object(self.driver, 'undeploy_instance')
) as (deploy, exists, undeploy):
pool_id = 'pool_id1'
deploy.return_value = False
exists.return_value = False
self.driver._refresh_device(pool_id)
self.assertFalse(undeploy.called)
def test_create_vip(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.create_vip({'pool_id': '1'})
refresh.assert_called_once_with('1')
def test_update_vip(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.update_vip({}, {'pool_id': '1'})
refresh.assert_called_once_with('1')
def test_delete_vip(self):
with mock.patch.object(self.driver, 'undeploy_instance') as undeploy:
self.driver.delete_vip({'pool_id': '1'})
undeploy.assert_called_once_with('1')
def test_create_pool(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.create_pool({'id': '1'})
self.assertFalse(refresh.called)
def test_update_pool(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.update_pool({}, {'id': '1'})
refresh.assert_called_once_with('1')
def test_delete_pool_existing(self):
with contextlib.nested(
mock.patch.object(self.driver, 'undeploy_instance'),
mock.patch.object(self.driver, 'exists'),
) as (undeploy, exists):
exists.return_value = True
self.driver.delete_pool({'id': '1'})
undeploy.assert_called_once_with('1', delete_namespace=True)
def test_delete_pool_non_existing(self):
with contextlib.nested(
mock.patch.object(self.driver, 'undeploy_instance'),
mock.patch.object(self.driver, 'exists'),
) as (undeploy, exists):
exists.return_value = False
self.driver.delete_pool({'id': '1'})
self.assertFalse(undeploy.called)
def test_create_member(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.create_member({'pool_id': '1'})
refresh.assert_called_once_with('1')
def test_update_member(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.update_member({}, {'pool_id': '1'})
refresh.assert_called_once_with('1')
def test_delete_member(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.delete_member({'pool_id': '1'})
refresh.assert_called_once_with('1')
def test_create_pool_health_monitor(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.create_pool_health_monitor('', '1')
refresh.assert_called_once_with('1')
def test_update_pool_health_monitor(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.update_pool_health_monitor('', '', '1')
refresh.assert_called_once_with('1')
def test_delete_pool_health_monitor(self):
with mock.patch.object(self.driver, '_refresh_device') as refresh:
self.driver.delete_pool_health_monitor('', '1')
refresh.assert_called_once_with('1')
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