x/vmware-nsx
Code Issues Proposed changes
vmware-nsx/quantum/tests/unit/test_linux_interface.py
Kevin Benton e02c746a94 Adds support for the Indigo Virtual Switch (IVS) 
Implements: blueprint ivs-interface-driver

Adds the IVS VIF type to portbindings.py.
Adds the VIF interface class to allow agents to bind to VIF switches.
Adds support to the BigSwitch plugin to request the IVS VIF type on nova compute nodes.
Adds unit tests for new interface class and changes to BigSwitch plugin.

Change-Id: I2fe104000523c60097c22946b0a80dc404dfe273
2013-06-06 15:33:12 -07:00

473 lines
18 KiB
Python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack Foundation
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import mock
from quantum.agent.common import config
from quantum.agent.dhcp_agent import DeviceManager
from quantum.agent.linux import interface
from quantum.agent.linux import ip_lib
from quantum.agent.linux import utils
from quantum.extensions.flavor import (FLAVOR_NETWORK)
from quantum.tests import base
class BaseChild(interface.LinuxInterfaceDriver):
def plug(*args):
pass
def unplug(*args):
pass
class FakeNetwork:
id = '12345678-1234-5678-90ab-ba0987654321'
class FakeSubnet:
cidr = '192.168.1.1/24'
class FakeAllocation:
subnet = FakeSubnet()
ip_address = '192.168.1.2'
ip_version = 4
class FakePort:
id = 'abcdef01-1234-5678-90ab-ba0987654321'
fixed_ips = [FakeAllocation]
device_id = 'cccccccc-cccc-cccc-cccc-cccccccccccc'
network = FakeNetwork()
network_id = network.id
class TestBase(base.BaseTestCase):
def setUp(self):
super(TestBase, self).setUp()
self.conf = config.setup_conf()
self.conf.register_opts(interface.OPTS)
config.register_root_helper(self.conf)
self.ip_dev_p = mock.patch.object(ip_lib, 'IPDevice')
self.ip_dev = self.ip_dev_p.start()
self.addCleanup(self.ip_dev_p.stop)
self.ip_p = mock.patch.object(ip_lib, 'IPWrapper')
self.ip = self.ip_p.start()
self.addCleanup(self.ip_p.stop)
self.device_exists_p = mock.patch.object(ip_lib, 'device_exists')
self.device_exists = self.device_exists_p.start()
self.addCleanup(self.device_exists_p.stop)
class TestABCDriver(TestBase):
def test_get_device_name(self):
bc = BaseChild(self.conf)
device_name = bc.get_device_name(FakePort())
self.assertEqual('tapabcdef01-12', device_name)
def test_l3_init(self):
addresses = [dict(ip_version=4, scope='global',
dynamic=False, cidr='172.16.77.240/24')]
self.ip_dev().addr.list = mock.Mock(return_value=addresses)
bc = BaseChild(self.conf)
ns = '12345678-1234-5678-90ab-ba0987654321'
bc.init_l3('tap0', ['192.168.1.2/24'], namespace=ns)
self.ip_dev.assert_has_calls(
[mock.call('tap0', 'sudo', namespace=ns),
mock.call().addr.list(scope='global', filters=['permanent']),
mock.call().addr.add(4, '192.168.1.2/24', '192.168.1.255'),
mock.call().addr.delete(4, '172.16.77.240/24')])
class TestOVSInterfaceDriver(TestBase):
def test_get_device_name(self):
br = interface.OVSInterfaceDriver(self.conf)
device_name = br.get_device_name(FakePort())
self.assertEqual('tapabcdef01-12', device_name)
def test_plug_no_ns(self):
self._test_plug()
def test_plug_with_ns(self):
self._test_plug(namespace='01234567-1234-1234-99')
def test_plug_alt_bridge(self):
self._test_plug(bridge='br-foo')
def _test_plug(self, additional_expectation=[], bridge=None,
namespace=None):
if not bridge:
bridge = 'br-int'
def device_exists(dev, root_helper=None, namespace=None):
return dev == bridge
vsctl_cmd = ['ovs-vsctl', '--', '--may-exist', 'add-port',
bridge, 'tap0', '--', 'set', 'Interface', 'tap0',
'type=internal', '--', 'set', 'Interface', 'tap0',
'external-ids:iface-id=port-1234', '--', 'set',
'Interface', 'tap0',
'external-ids:iface-status=active', '--', 'set',
'Interface', 'tap0',
'external-ids:attached-mac=aa:bb:cc:dd:ee:ff']
with mock.patch.object(utils, 'execute') as execute:
ovs = interface.OVSInterfaceDriver(self.conf)
self.device_exists.side_effect = device_exists
ovs.plug('01234567-1234-1234-99',
'port-1234',
'tap0',
'aa:bb:cc:dd:ee:ff',
bridge=bridge,
namespace=namespace)
execute.assert_called_once_with(vsctl_cmd, 'sudo')
expected = [mock.call('sudo'),
mock.call().device('tap0'),
mock.call().device().link.set_address('aa:bb:cc:dd:ee:ff')]
expected.extend(additional_expectation)
if namespace:
expected.extend(
[mock.call().ensure_namespace(namespace),
mock.call().ensure_namespace().add_device_to_namespace(
mock.ANY)])
expected.extend([mock.call().device().link.set_up()])
self.ip.assert_has_calls(expected)
def test_mtu_int(self):
self.assertIsNone(self.conf.network_device_mtu)
self.conf.set_override('network_device_mtu', 9000)
self.assertEqual(self.conf.network_device_mtu, 9000)
def test_plug_mtu(self):
self.conf.set_override('network_device_mtu', 9000)
self._test_plug([mock.call().device().link.set_mtu(9000)])
def test_unplug(self, bridge=None):
if not bridge:
bridge = 'br-int'
with mock.patch('quantum.agent.linux.ovs_lib.OVSBridge') as ovs_br:
ovs = interface.OVSInterfaceDriver(self.conf)
ovs.unplug('tap0')
ovs_br.assert_has_calls([mock.call(bridge, 'sudo'),
mock.call().delete_port('tap0')])
class TestOVSInterfaceDriverWithVeth(TestOVSInterfaceDriver):
def setUp(self):
super(TestOVSInterfaceDriverWithVeth, self).setUp()
self.conf.set_override('ovs_use_veth', True)
def test_get_device_name(self):
br = interface.OVSInterfaceDriver(self.conf)
device_name = br.get_device_name(FakePort())
self.assertEqual('ns-abcdef01-12', device_name)
def test_plug_with_prefix(self):
self._test_plug(devname='qr-0', prefix='qr-')
def _test_plug(self, devname=None, bridge=None, namespace=None,
prefix=None, mtu=None):
if not devname:
devname = 'ns-0'
if not bridge:
bridge = 'br-int'
def device_exists(dev, root_helper=None, namespace=None):
return dev == bridge
ovs = interface.OVSInterfaceDriver(self.conf)
self.device_exists.side_effect = device_exists
root_dev = mock.Mock()
ns_dev = mock.Mock()
self.ip().add_veth = mock.Mock(return_value=(root_dev, ns_dev))
expected = [mock.call('sudo'),
mock.call().add_veth('tap0', devname,
namespace2=namespace)]
vsctl_cmd = ['ovs-vsctl', '--', '--may-exist', 'add-port',
bridge, 'tap0', '--', 'set', 'Interface', 'tap0',
'external-ids:iface-id=port-1234', '--', 'set',
'Interface', 'tap0',
'external-ids:iface-status=active', '--', 'set',
'Interface', 'tap0',
'external-ids:attached-mac=aa:bb:cc:dd:ee:ff']
with mock.patch.object(utils, 'execute') as execute:
ovs.plug('01234567-1234-1234-99',
'port-1234',
devname,
'aa:bb:cc:dd:ee:ff',
bridge=bridge,
namespace=namespace,
prefix=prefix)
execute.assert_called_once_with(vsctl_cmd, 'sudo')
ns_dev.assert_has_calls(
[mock.call.link.set_address('aa:bb:cc:dd:ee:ff')])
if mtu:
ns_dev.assert_has_calls([mock.call.link.set_mtu(mtu)])
root_dev.assert_has_calls([mock.call.link.set_mtu(mtu)])
self.ip.assert_has_calls(expected)
root_dev.assert_has_calls([mock.call.link.set_up()])
ns_dev.assert_has_calls([mock.call.link.set_up()])
def test_plug_mtu(self):
self.conf.set_override('network_device_mtu', 9000)
self._test_plug(mtu=9000)
def test_unplug(self, bridge=None):
if not bridge:
bridge = 'br-int'
with mock.patch('quantum.agent.linux.ovs_lib.OVSBridge') as ovs_br:
ovs = interface.OVSInterfaceDriver(self.conf)
ovs.unplug('ns-0', bridge=bridge)
ovs_br.assert_has_calls([mock.call(bridge, 'sudo'),
mock.call().delete_port('tap0')])
self.ip_dev.assert_has_calls([mock.call('ns-0', 'sudo', None),
mock.call().link.delete()])
class TestBridgeInterfaceDriver(TestBase):
def test_get_device_name(self):
br = interface.BridgeInterfaceDriver(self.conf)
device_name = br.get_device_name(FakePort())
self.assertEqual('ns-abcdef01-12', device_name)
def test_plug_no_ns(self):
self._test_plug()
def test_plug_with_ns(self):
self._test_plug(namespace='01234567-1234-1234-99')
def _test_plug(self, namespace=None, mtu=None):
def device_exists(device, root_helper=None, namespace=None):
return device.startswith('brq')
root_veth = mock.Mock()
ns_veth = mock.Mock()
self.ip().add_veth = mock.Mock(return_value=(root_veth, ns_veth))
self.device_exists.side_effect = device_exists
br = interface.BridgeInterfaceDriver(self.conf)
mac_address = 'aa:bb:cc:dd:ee:ff'
br.plug('01234567-1234-1234-99',
'port-1234',
'ns-0',
mac_address,
namespace=namespace)
ip_calls = [mock.call('sudo'),
mock.call().add_veth('tap0', 'ns-0', namespace2=namespace)]
ns_veth.assert_has_calls([mock.call.link.set_address(mac_address)])
if mtu:
ns_veth.assert_has_calls([mock.call.link.set_mtu(mtu)])
root_veth.assert_has_calls([mock.call.link.set_mtu(mtu)])
self.ip.assert_has_calls(ip_calls)
root_veth.assert_has_calls([mock.call.link.set_up()])
ns_veth.assert_has_calls([mock.call.link.set_up()])
def test_plug_dev_exists(self):
self.device_exists.return_value = True
with mock.patch('quantum.agent.linux.interface.LOG.warn') as log:
br = interface.BridgeInterfaceDriver(self.conf)
br.plug('01234567-1234-1234-99',
'port-1234',
'tap0',
'aa:bb:cc:dd:ee:ff')
self.ip_dev.assert_has_calls([])
self.assertEqual(log.call_count, 1)
def test_plug_mtu(self):
self.device_exists.return_value = False
self.conf.set_override('network_device_mtu', 9000)
self._test_plug(mtu=9000)
def test_unplug_no_device(self):
self.device_exists.return_value = False
self.ip_dev().link.delete.side_effect = RuntimeError
with mock.patch('quantum.agent.linux.interface.LOG') as log:
br = interface.BridgeInterfaceDriver(self.conf)
br.unplug('tap0')
[mock.call(), mock.call('tap0', 'sudo'), mock.call().link.delete()]
self.assertEqual(log.error.call_count, 1)
def test_unplug(self):
self.device_exists.return_value = True
with mock.patch('quantum.agent.linux.interface.LOG.debug') as log:
br = interface.BridgeInterfaceDriver(self.conf)
br.unplug('tap0')
log.assert_called_once()
self.ip_dev.assert_has_calls([mock.call('tap0', 'sudo', None),
mock.call().link.delete()])
class TestMetaInterfaceDriver(TestBase):
def setUp(self):
super(TestMetaInterfaceDriver, self).setUp()
self.conf.register_opts(DeviceManager.OPTS)
self.client_cls_p = mock.patch('quantumclient.v2_0.client.Client')
client_cls = self.client_cls_p.start()
self.addCleanup(self.client_cls_p.stop)
self.client_inst = mock.Mock()
client_cls.return_value = self.client_inst
fake_network = {'network': {FLAVOR_NETWORK: 'fake1'}}
fake_port = {'ports':
[{'mac_address':
'aa:bb:cc:dd:ee:ffa', 'network_id': 'test'}]}
self.client_inst.list_ports.return_value = fake_port
self.client_inst.show_network.return_value = fake_network
self.conf.set_override('auth_url', 'http://localhost:35357/v2.0')
self.conf.set_override('auth_region', 'RegionOne')
self.conf.set_override('admin_user', 'quantum')
self.conf.set_override('admin_password', 'password')
self.conf.set_override('admin_tenant_name', 'service')
self.conf.set_override(
'meta_flavor_driver_mappings',
'fake1:quantum.agent.linux.interface.OVSInterfaceDriver,'
'fake2:quantum.agent.linux.interface.BridgeInterfaceDriver')
def test_get_driver_by_network_id(self):
meta_interface = interface.MetaInterfaceDriver(self.conf)
driver = meta_interface._get_driver_by_network_id('test')
self.assertTrue(isinstance(
driver,
interface.OVSInterfaceDriver))
def test_set_device_plugin_tag(self):
meta_interface = interface.MetaInterfaceDriver(self.conf)
driver = meta_interface._get_driver_by_network_id('test')
meta_interface._set_device_plugin_tag(driver,
'tap0',
namespace=None)
expected = [mock.call('tap0', 'sudo', None),
mock.call().link.set_alias('fake1')]
self.ip_dev.assert_has_calls(expected)
namespace = '01234567-1234-1234-99'
meta_interface._set_device_plugin_tag(driver,
'tap1',
namespace=namespace)
expected = [mock.call('tap1', 'sudo', '01234567-1234-1234-99'),
mock.call().link.set_alias('fake1')]
self.ip_dev.assert_has_calls(expected)
def test_get_device_plugin_tag(self):
meta_interface = interface.MetaInterfaceDriver(self.conf)
self.ip_dev().link.alias = 'fake1'
plugin_tag0 = meta_interface._get_device_plugin_tag('tap0',
namespace=None)
expected = [mock.call('tap0', 'sudo', None)]
self.ip_dev.assert_has_calls(expected)
self.assertEquals('fake1', plugin_tag0)
namespace = '01234567-1234-1234-99'
expected = [mock.call('tap1', 'sudo', '01234567-1234-1234-99')]
plugin_tag1 = meta_interface._get_device_plugin_tag(
'tap1',
namespace=namespace)
self.ip_dev.assert_has_calls(expected)
self.assertEquals('fake1', plugin_tag1)
class TestIVSInterfaceDriver(TestBase):
def setUp(self):
super(TestIVSInterfaceDriver, self).setUp()
def test_get_device_name(self):
br = interface.IVSInterfaceDriver(self.conf)
device_name = br.get_device_name(FakePort())
self.assertEqual('ns-abcdef01-12', device_name)
def test_plug_with_prefix(self):
self._test_plug(devname='qr-0', prefix='qr-')
def _test_plug(self, devname=None, namespace=None,
prefix=None, mtu=None):
if not devname:
devname = 'ns-0'
def device_exists(dev, root_helper=None, namespace=None):
return dev == 'indigo'
ivs = interface.IVSInterfaceDriver(self.conf)
self.device_exists.side_effect = device_exists
root_dev = mock.Mock()
_ns_dev = mock.Mock()
ns_dev = mock.Mock()
self.ip().add_veth = mock.Mock(return_value=(root_dev, _ns_dev))
self.ip().device = mock.Mock(return_value=(ns_dev))
expected = [mock.call('sudo'), mock.call().add_veth('tap0', devname),
mock.call().device(devname)]
ivsctl_cmd = ['ivs-ctl', 'add-port', 'tap0']
with mock.patch.object(utils, 'execute') as execute:
ivs.plug('01234567-1234-1234-99',
'port-1234',
devname,
'aa:bb:cc:dd:ee:ff',
namespace=namespace,
prefix=prefix)
execute.assert_called_once_with(ivsctl_cmd, 'sudo')
ns_dev.assert_has_calls(
[mock.call.link.set_address('aa:bb:cc:dd:ee:ff')])
if mtu:
ns_dev.assert_has_calls([mock.call.link.set_mtu(mtu)])
root_dev.assert_has_calls([mock.call.link.set_mtu(mtu)])
if namespace:
expected.extend(
[mock.call().ensure_namespace(namespace),
mock.call().ensure_namespace().add_device_to_namespace(
mock.ANY)])
self.ip.assert_has_calls(expected)
root_dev.assert_has_calls([mock.call.link.set_up()])
ns_dev.assert_has_calls([mock.call.link.set_up()])
def test_plug_mtu(self):
self.conf.set_override('network_device_mtu', 9000)
self._test_plug(mtu=9000)
def test_plug_namespace(self):
self._test_plug(namespace='mynamespace')
def test_unplug(self):
ivs = interface.IVSInterfaceDriver(self.conf)
ivsctl_cmd = ['ivs-ctl', 'del-port', 'tap0']
with mock.patch.object(utils, 'execute') as execute:
ivs.unplug('ns-0')
execute.assert_called_once_with(ivsctl_cmd, 'sudo')
self.ip_dev.assert_has_calls([mock.call('ns-0', 'sudo', None),
mock.call().link.delete()])
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