282 lines
9.2 KiB
Python
282 lines
9.2 KiB
Python
# Copyright (C) 2014 eNovance SAS <licensing@enovance.com>
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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 testtools
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from neutron.agent.linux import keepalived
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from neutron.common import constants as n_consts
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from neutron.tests import base
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# Keepalived user guide:
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# http://www.keepalived.org/pdf/UserGuide.pdf
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class KeepalivedGetFreeRangeTestCase(base.BaseTestCase):
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def test_get_free_range(self):
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free_range = keepalived.get_free_range(
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parent_range='169.254.0.0/16',
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excluded_ranges=['169.254.0.0/24',
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'169.254.1.0/24',
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'169.254.2.0/24'],
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size=24)
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self.assertEqual('169.254.3.0/24', free_range)
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def test_get_free_range_without_excluded(self):
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free_range = keepalived.get_free_range(
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parent_range='169.254.0.0/16',
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excluded_ranges=[],
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size=20)
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self.assertEqual('169.254.0.0/20', free_range)
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def test_get_free_range_excluded_out_of_parent(self):
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free_range = keepalived.get_free_range(
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parent_range='169.254.0.0/16',
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excluded_ranges=['255.255.255.0/24'],
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size=24)
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self.assertEqual('169.254.0.0/24', free_range)
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def test_get_free_range_not_found(self):
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tiny_parent_range = '192.168.1.0/24'
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huge_size = 8
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with testtools.ExpectedException(ValueError):
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keepalived.get_free_range(
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parent_range=tiny_parent_range,
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excluded_ranges=[],
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size=huge_size)
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class KeepalivedConfBaseMixin(object):
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def _get_config(self):
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config = keepalived.KeepalivedConf()
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instance1 = keepalived.KeepalivedInstance('MASTER', 'eth0', 1,
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'169.254.192.0/18',
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advert_int=5)
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instance1.set_authentication('AH', 'pass123')
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instance1.track_interfaces.append("eth0")
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vip_address1 = keepalived.KeepalivedVipAddress('192.168.1.0/24',
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'eth1')
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vip_address2 = keepalived.KeepalivedVipAddress('192.168.2.0/24',
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'eth2')
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vip_address3 = keepalived.KeepalivedVipAddress('192.168.3.0/24',
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'eth2')
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vip_address_ex = keepalived.KeepalivedVipAddress('192.168.55.0/24',
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'eth10')
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instance1.vips.append(vip_address1)
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instance1.vips.append(vip_address2)
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instance1.vips.append(vip_address3)
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instance1.vips.append(vip_address_ex)
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virtual_route = keepalived.KeepalivedVirtualRoute(n_consts.IPv4_ANY,
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"192.168.1.1",
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"eth1")
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instance1.virtual_routes.append(virtual_route)
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instance2 = keepalived.KeepalivedInstance('MASTER', 'eth4', 2,
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'169.254.192.0/18',
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mcast_src_ip='224.0.0.1')
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instance2.track_interfaces.append("eth4")
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vip_address1 = keepalived.KeepalivedVipAddress('192.168.3.0/24',
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'eth6')
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instance2.vips.append(vip_address1)
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instance2.vips.append(vip_address2)
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instance2.vips.append(vip_address_ex)
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config.add_instance(instance1)
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config.add_instance(instance2)
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return config
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class KeepalivedConfTestCase(base.BaseTestCase,
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KeepalivedConfBaseMixin):
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expected = """vrrp_instance VR_1 {
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state MASTER
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interface eth0
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virtual_router_id 1
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priority 50
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advert_int 5
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authentication {
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auth_type AH
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auth_pass pass123
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}
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track_interface {
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eth0
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}
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virtual_ipaddress {
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169.254.0.1/24 dev eth0
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}
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virtual_ipaddress_excluded {
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192.168.1.0/24 dev eth1
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192.168.2.0/24 dev eth2
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192.168.3.0/24 dev eth2
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192.168.55.0/24 dev eth10
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}
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virtual_routes {
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0.0.0.0/0 via 192.168.1.1 dev eth1
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}
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}
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vrrp_instance VR_2 {
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state MASTER
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interface eth4
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virtual_router_id 2
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priority 50
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mcast_src_ip 224.0.0.1
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track_interface {
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eth4
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}
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virtual_ipaddress {
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169.254.0.2/24 dev eth4
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}
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virtual_ipaddress_excluded {
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192.168.2.0/24 dev eth2
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192.168.3.0/24 dev eth6
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192.168.55.0/24 dev eth10
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}
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}"""
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def test_config_generation(self):
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config = self._get_config()
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self.assertEqual(self.expected, config.get_config_str())
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def test_config_with_reset(self):
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config = self._get_config()
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self.assertEqual(self.expected, config.get_config_str())
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config.reset()
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self.assertEqual('', config.get_config_str())
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def test_get_existing_vip_ip_addresses_returns_list(self):
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config = self._get_config()
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instance = config.get_instance(1)
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current_vips = sorted(instance.get_existing_vip_ip_addresses('eth2'))
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self.assertEqual(['192.168.2.0/24', '192.168.3.0/24'], current_vips)
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class KeepalivedStateExceptionTestCase(base.BaseTestCase):
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def test_state_exception(self):
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invalid_vrrp_state = 'a seal walks'
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self.assertRaises(keepalived.InvalidInstanceStateException,
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keepalived.KeepalivedInstance,
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invalid_vrrp_state, 'eth0', 33, '169.254.192.0/18')
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invalid_auth_type = 'into a club'
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instance = keepalived.KeepalivedInstance('MASTER', 'eth0', 1,
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'169.254.192.0/18')
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self.assertRaises(keepalived.InvalidAuthenticationTypeException,
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instance.set_authentication,
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invalid_auth_type, 'some_password')
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class KeepalivedInstanceTestCase(base.BaseTestCase,
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KeepalivedConfBaseMixin):
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def test_get_primary_vip(self):
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instance = keepalived.KeepalivedInstance('MASTER', 'ha0', 42,
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'169.254.192.0/18')
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self.assertEqual('169.254.0.42/24', instance.get_primary_vip())
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def test_remove_adresses_by_interface(self):
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config = self._get_config()
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instance = config.get_instance(1)
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instance.remove_vips_vroutes_by_interface('eth2')
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instance.remove_vips_vroutes_by_interface('eth10')
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expected = """vrrp_instance VR_1 {
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state MASTER
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interface eth0
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virtual_router_id 1
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priority 50
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advert_int 5
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authentication {
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auth_type AH
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auth_pass pass123
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}
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track_interface {
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eth0
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}
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virtual_ipaddress {
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169.254.0.1/24 dev eth0
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}
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virtual_ipaddress_excluded {
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192.168.1.0/24 dev eth1
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}
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virtual_routes {
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0.0.0.0/0 via 192.168.1.1 dev eth1
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}
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}
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vrrp_instance VR_2 {
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state MASTER
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interface eth4
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virtual_router_id 2
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priority 50
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mcast_src_ip 224.0.0.1
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track_interface {
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eth4
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}
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virtual_ipaddress {
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169.254.0.2/24 dev eth4
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}
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virtual_ipaddress_excluded {
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192.168.2.0/24 dev eth2
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192.168.3.0/24 dev eth6
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192.168.55.0/24 dev eth10
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}
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}"""
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self.assertEqual(expected, config.get_config_str())
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def test_build_config_no_vips(self):
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expected = """vrrp_instance VR_1 {
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state MASTER
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interface eth0
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virtual_router_id 1
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priority 50
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virtual_ipaddress {
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169.254.0.1/24 dev eth0
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}
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}"""
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instance = keepalived.KeepalivedInstance(
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'MASTER', 'eth0', 1, '169.254.192.0/18')
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self.assertEqual(expected, '\n'.join(instance.build_config()))
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class KeepalivedVipAddressTestCase(base.BaseTestCase):
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def test_vip_with_scope(self):
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vip = keepalived.KeepalivedVipAddress('fe80::3e97:eff:fe26:3bfa/64',
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'eth1',
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'link')
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self.assertEqual('fe80::3e97:eff:fe26:3bfa/64 dev eth1 scope link',
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vip.build_config())
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class KeepalivedVirtualRouteTestCase(base.BaseTestCase):
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def test_virtual_route_with_dev(self):
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route = keepalived.KeepalivedVirtualRoute(n_consts.IPv4_ANY, '1.2.3.4',
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'eth0')
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self.assertEqual('0.0.0.0/0 via 1.2.3.4 dev eth0',
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route.build_config())
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def test_virtual_route_without_dev(self):
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route = keepalived.KeepalivedVirtualRoute('50.0.0.0/8', '1.2.3.4')
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self.assertEqual('50.0.0.0/8 via 1.2.3.4', route.build_config())
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