260 lines
9.0 KiB
Python
260 lines
9.0 KiB
Python
# Copyright 2014 DreamHost, LLC
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#
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# Author: DreamHost, LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 OpenStack LLC
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import unittest
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import mock
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from oslo_config import cfg
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from akanda.rug.common.linux import interface
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from akanda.rug.common.linux import ip_lib
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from akanda.rug.common.linux import utils
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class BaseChild(interface.LinuxInterfaceDriver):
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def plug(*args):
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pass
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def unplug(*args):
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pass
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class FakeNetwork:
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id = '12345678-1234-5678-90ab-ba0987654321'
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class FakeSubnet:
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cidr = '192.168.1.1/24'
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class FakeAllocation:
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subnet = FakeSubnet()
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ip_address = '192.168.1.2'
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ip_version = 4
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class FakePort:
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id = 'abcdef01-1234-5678-90ab-ba0987654321'
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fixed_ips = [FakeAllocation]
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device_id = 'cccccccc-cccc-cccc-cccc-cccccccccccc'
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network = FakeNetwork()
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network_id = network.id
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class TestBase(unittest.TestCase):
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def setUp(self):
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root_helper_opt = [
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cfg.StrOpt('root_helper', default='sudo'),
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]
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self.conf = cfg.CONF
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self.conf.register_opts(root_helper_opt)
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self.ip_dev_p = mock.patch.object(ip_lib, 'IPDevice')
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self.ip_dev = self.ip_dev_p.start()
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self.ip_p = mock.patch.object(ip_lib, 'IPWrapper')
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self.ip = self.ip_p.start()
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self.device_exists_p = mock.patch.object(ip_lib, 'device_exists')
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self.device_exists = self.device_exists_p.start()
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def tearDown(self):
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# sometimes a test may turn this off
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try:
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self.device_exists_p.stop()
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except RuntimeError:
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pass
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self.ip_dev_p.stop()
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self.ip_p.stop()
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# Note(rods): some tests override the default options so let's reset
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# the config object
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self.conf.reset()
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class TestABCDriver(TestBase):
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def test_get_device_name(self):
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bc = BaseChild(self.conf)
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device_name = bc.get_device_name(FakePort())
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self.assertEqual('tapabcdef01-12', device_name)
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def test_l3_init(self):
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addresses = [dict(ip_version=4, scope='global',
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dynamic=False, cidr='172.16.77.240/24')]
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self.ip_dev().addr.list = mock.Mock(return_value=addresses)
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bc = BaseChild(self.conf)
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ns = '12345678-1234-5678-90ab-ba0987654321'
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bc.init_l3('tap0', ['192.168.1.2/24'], namespace=ns)
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self.ip_dev.assert_has_calls(
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[mock.call('tap0', 'sudo', namespace=ns),
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mock.call().addr.list(scope='global', filters=['permanent']),
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mock.call().addr.add(4, '192.168.1.2/24', '192.168.1.255'),
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mock.call().addr.delete(4, '172.16.77.240/24')])
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class TestOVSInterfaceDriver(TestBase):
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def test_plug_no_ns(self):
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self._test_plug()
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def test_plug_with_ns(self):
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self._test_plug(namespace='01234567-1234-1234-99')
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def test_plug_alt_bridge(self):
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self._test_plug(bridge='br-foo')
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def _test_plug(self, additional_expectation=[], bridge=None,
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namespace=None):
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if not bridge:
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bridge = 'br-int'
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def device_exists(dev, root_helper=None, namespace=None):
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return dev == bridge
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vsctl_cmd = ['ovs-vsctl', '--', '--may-exist', 'add-port',
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bridge, 'tap0', '--', 'set', 'Interface', 'tap0',
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'type=internal', '--', 'set', 'Interface', 'tap0',
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'external-ids:iface-id=port-1234', '--', 'set',
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'Interface', 'tap0',
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'external-ids:iface-status=active', '--', 'set',
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'Interface', 'tap0',
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'external-ids:attached-mac=aa:bb:cc:dd:ee:ff']
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with mock.patch.object(utils, 'execute') as execute:
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ovs = interface.OVSInterfaceDriver(self.conf)
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self.device_exists.side_effect = device_exists
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ovs.plug('01234567-1234-1234-99',
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'port-1234',
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'tap0',
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'aa:bb:cc:dd:ee:ff',
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bridge=bridge,
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namespace=namespace)
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execute.assert_called_once_with(vsctl_cmd, 'sudo')
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expected = [mock.call('sudo'),
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mock.call().device('tap0'),
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mock.call().device().link.set_address('aa:bb:cc:dd:ee:ff')]
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expected.extend(additional_expectation)
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if namespace:
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expected.extend(
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[mock.call().ensure_namespace(namespace),
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mock.call().ensure_namespace().add_device_to_namespace(
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mock.ANY)])
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expected.extend([mock.call().device().link.set_up()])
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self.ip.assert_has_calls(expected)
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def test_plug_mtu(self):
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self.conf.set_override('network_device_mtu', 9000)
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self._test_plug([mock.call().device().link.set_mtu(9000)])
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def test_unplug(self, bridge=None):
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if not bridge:
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bridge = 'br-int'
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with mock.patch('akanda.rug.common.linux.ovs_lib.OVSBridge') as ovs_br:
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ovs = interface.OVSInterfaceDriver(self.conf)
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ovs.unplug('tap0')
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ovs_br.assert_has_calls([mock.call(bridge, 'sudo'),
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mock.call().delete_port('tap0')])
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class TestBridgeInterfaceDriver(TestBase):
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def test_get_device_name(self):
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br = interface.BridgeInterfaceDriver(self.conf)
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device_name = br.get_device_name(FakePort())
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self.assertEqual('ns-abcdef01-12', device_name)
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def test_plug_no_ns(self):
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self._test_plug()
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def test_plug_with_ns(self):
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self._test_plug(namespace='01234567-1234-1234-99')
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def _test_plug(self, namespace=None):
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def device_exists(device, root_helper=None, namespace=None):
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return device.startswith('brq')
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root_veth = mock.Mock()
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ns_veth = mock.Mock()
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self.ip().add_veth = mock.Mock(return_value=(root_veth, ns_veth))
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self.device_exists.side_effect = device_exists
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br = interface.BridgeInterfaceDriver(self.conf)
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br.plug('01234567-1234-1234-99',
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'port-1234',
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'ns-0',
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'aa:bb:cc:dd:ee:ff',
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namespace=namespace)
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ip_calls = [mock.call('sudo'), mock.call().add_veth('tap0', 'ns-0')]
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if namespace:
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ip_calls.extend([
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mock.call().ensure_namespace('01234567-1234-1234-99'),
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mock.call().ensure_namespace().add_device_to_namespace(
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ns_veth)])
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self.ip.assert_has_calls(ip_calls)
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root_veth.assert_has_calls([mock.call.link.set_up()])
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ns_veth.assert_has_calls([mock.call.link.set_up()])
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def test_plug_dev_exists(self):
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self.device_exists.return_value = True
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with mock.patch('akanda.rug.common.linux.interface.LOG.warn') as log:
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br = interface.BridgeInterfaceDriver(self.conf)
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br.plug('01234567-1234-1234-99',
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'port-1234',
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'tap0',
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'aa:bb:cc:dd:ee:ff')
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self.ip_dev.assert_has_calls([])
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self.assertEquals(log.call_count, 1)
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def test_unplug_no_device(self):
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self.device_exists.return_value = False
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self.ip_dev().link.delete.side_effect = RuntimeError
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with mock.patch('akanda.rug.common.linux.interface.LOG') as log:
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br = interface.BridgeInterfaceDriver(self.conf)
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br.unplug('tap0')
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[mock.call(), mock.call('tap0', 'sudo'), mock.call().link.delete()]
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self.assertEqual(log.exception.call_count, 1)
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def test_unplug(self):
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self.device_exists.return_value = True
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with mock.patch('akanda.rug.common.linux.interface.LOG.debug') as log:
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br = interface.BridgeInterfaceDriver(self.conf)
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br.unplug('tap0')
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log.assert_called_once()
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self.ip_dev.assert_has_calls([mock.call('tap0', 'sudo', None),
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mock.call().link.delete()])
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