955bb88406
This patch refactors the failover flows to improve the performance and reliability of failovers in Octavia. Specific improvements are: * More tasks and flows will retry when other OpenStack services are failing. * Failover can now succeed even when all of the amphora are missing for a given load balancer. * It will check and repair the load balancer VIP should the VIP port(s) become corrupted in neutron. * It will cleanup extra resources that may be associated with a load balancer in the event of a cloud service failure. This patch also removes some dead code. Change-Id: I04cb2f1f10ec566298834f81df0cf8b100ca916c Story: 2003084 Task: 23166 Story: 2004440 Task: 28108
138 lines
5.8 KiB
Python
138 lines
5.8 KiB
Python
# Copyright 2014, Doug Wiegley, A10 Networks.
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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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from unittest import mock
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from oslo_utils import uuidutils
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from octavia.common import constants
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import octavia.common.utils as utils
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import octavia.tests.unit.base as base
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class TestConfig(base.TestCase):
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def test_get_hostname(self):
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self.assertNotEqual(utils.get_hostname(), '')
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def test_is_ipv4(self):
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self.assertTrue(utils.is_ipv4('192.0.2.10'))
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self.assertTrue(utils.is_ipv4('169.254.0.10'))
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self.assertTrue(utils.is_ipv4('0.0.0.0'))
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self.assertFalse(utils.is_ipv4('::'))
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self.assertFalse(utils.is_ipv4('2001:db8::1'))
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self.assertFalse(utils.is_ipv4('fe80::225:90ff:fefb:53ad'))
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def test_is_ipv6(self):
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self.assertFalse(utils.is_ipv6('192.0.2.10'))
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self.assertFalse(utils.is_ipv6('169.254.0.10'))
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self.assertFalse(utils.is_ipv6('0.0.0.0'))
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self.assertTrue(utils.is_ipv6('::'))
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self.assertTrue(utils.is_ipv6('2001:db8::1'))
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self.assertTrue(utils.is_ipv6('fe80::225:90ff:fefb:53ad'))
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def test_is_ipv6_lla(self):
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self.assertFalse(utils.is_ipv6_lla('192.0.2.10'))
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self.assertFalse(utils.is_ipv6_lla('169.254.0.10'))
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self.assertFalse(utils.is_ipv6_lla('0.0.0.0'))
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self.assertFalse(utils.is_ipv6_lla('::'))
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self.assertFalse(utils.is_ipv6_lla('2001:db8::1'))
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self.assertTrue(utils.is_ipv6_lla('fe80::225:90ff:fefb:53ad'))
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def test_ip_port_str(self):
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self.assertEqual("127.0.0.1:8080",
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utils.ip_port_str('127.0.0.1', 8080))
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self.assertEqual("[::1]:8080",
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utils.ip_port_str('::1', 8080))
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def test_netmask_to_prefix(self):
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self.assertEqual(utils.netmask_to_prefix('255.0.0.0'), 8)
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self.assertEqual(utils.netmask_to_prefix('255.255.0.0'), 16)
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self.assertEqual(utils.netmask_to_prefix('255.255.255.0'), 24)
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self.assertEqual(utils.netmask_to_prefix('255.255.255.128'), 25)
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def test_ip_netmask_to_cidr(self):
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self.assertEqual('10.0.0.0/8',
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utils.ip_netmask_to_cidr('10.0.0.1', '255.0.0.0'))
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self.assertEqual('10.0.0.0/9',
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utils.ip_netmask_to_cidr('10.0.0.1', '255.128.0.0'))
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self.assertEqual('10.0.0.0/16',
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utils.ip_netmask_to_cidr('10.0.0.1', '255.255.0.0'))
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self.assertEqual('10.0.0.0/20',
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utils.ip_netmask_to_cidr('10.0.0.1', '255.255.240.0'))
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self.assertEqual('10.0.0.0/30', utils.ip_netmask_to_cidr(
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'10.0.0.1', '255.255.255.252'))
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def test_expand_expected_codes(self):
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exp_codes = ''
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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set())
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exp_codes = '200'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200'})
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exp_codes = '200, 201'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201'})
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exp_codes = '200, 201,202'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201', '202'})
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exp_codes = '200-202'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201', '202'})
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exp_codes = '200-202, 205'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201', '202', '205'})
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exp_codes = '200, 201-203'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201', '202', '203'})
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exp_codes = '200, 201-203, 205'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'200', '201', '202', '203', '205'})
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exp_codes = '201-200, 205'
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self.assertEqual(utils.expand_expected_codes(exp_codes),
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{'205'})
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def test_base64_sha1_string(self):
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str_to_sha1 = [
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# no special cases str (no altchars)
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('77e7d60d-e137-4246-8a84-a25db33571cd',
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'iVZVQ5AKmk2Ae0uGLP0Ue4OseRM='),
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# backward compat amphorae with - in str[1:]
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('9c6e5f27-a0da-4ceb-afe5-5a81230be42e',
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'NjrNgt3Egl-H5ScbYM5ChtUH3M8='),
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# sha1 would start with -, now replaced with x
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('4db4a3cf-9fef-4057-b1fd-b2afbf7a8a0f',
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'xxqntK8jJ_gE3QEmh-D1-XgCW_E=')
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]
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for str, sha1 in str_to_sha1:
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self.assertEqual(sha1, utils.base64_sha1_string(str))
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@mock.patch('stevedore.driver.DriverManager')
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def test_get_amphora_driver(self, mock_stevedore_driver):
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FAKE_AMP_DRIVER = 'fake_amp_drvr'
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driver_mock = mock.MagicMock()
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driver_mock.driver = FAKE_AMP_DRIVER
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mock_stevedore_driver.return_value = driver_mock
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result = utils.get_amphora_driver()
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self.assertEqual(FAKE_AMP_DRIVER, result)
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def test_get_vip_secuirty_group_name(self):
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FAKE_LB_ID = uuidutils.generate_uuid()
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self.assertIsNone(utils.get_vip_security_group_name(None))
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expected_sg_name = constants.VIP_SECURITY_GROUP_PREFIX + FAKE_LB_ID
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self.assertEqual(expected_sg_name,
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utils.get_vip_security_group_name(FAKE_LB_ID))
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