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101 lines
3.9 KiB
101 lines
3.9 KiB
# Copyright (c) 2014 Red Hat, Inc. |
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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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from oslo_config import cfg |
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from neutron._i18n import _ |
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from neutron.agent.linux import external_process |
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from neutron.agent.linux import keepalived |
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from neutron.agent.linux import utils |
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from neutron.tests.functional.agent.linux import helpers |
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from neutron.tests.functional import base |
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from neutron.tests.unit.agent.linux import test_keepalived |
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class KeepalivedManagerTestCase(base.BaseLoggingTestCase, |
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test_keepalived.KeepalivedConfBaseMixin): |
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def setUp(self): |
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super(KeepalivedManagerTestCase, self).setUp() |
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cfg.CONF.set_override('check_child_processes_interval', 1, 'AGENT') |
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self.expected_config = self._get_config() |
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self.process_monitor = external_process.ProcessMonitor(cfg.CONF, |
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'router') |
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self.manager = keepalived.KeepalivedManager( |
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'router1', self.expected_config, self.process_monitor, |
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conf_path=cfg.CONF.state_path) |
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self.addCleanup(self.manager.disable) |
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def _spawn_keepalived(self, keepalived_manager): |
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keepalived_manager.spawn() |
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process = keepalived_manager.get_process() |
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utils.wait_until_true( |
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lambda: process.active, |
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timeout=5, |
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sleep=0.01, |
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exception=RuntimeError(_("Keepalived didn't spawn"))) |
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return process |
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def test_keepalived_spawn(self): |
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self._spawn_keepalived(self.manager) |
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self.assertEqual(self.expected_config.get_config_str(), |
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self.manager.get_conf_on_disk()) |
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def _test_keepalived_respawns(self, normal_exit=True): |
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process = self._spawn_keepalived(self.manager) |
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pid = process.pid |
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exit_code = '-15' if normal_exit else '-9' |
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# Exit the process, and see that when it comes back |
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# It's indeed a different process |
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utils.execute(['kill', exit_code, pid], run_as_root=True) |
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utils.wait_until_true( |
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lambda: process.active and pid != process.pid, |
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timeout=5, |
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sleep=0.01, |
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exception=RuntimeError(_("Keepalived didn't respawn"))) |
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def test_keepalived_respawns(self): |
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self._test_keepalived_respawns() |
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def test_keepalived_respawn_with_unexpected_exit(self): |
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self._test_keepalived_respawns(False) |
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def _test_keepalived_spawns_conflicting_pid(self, process, pid_file): |
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# Test the situation when keepalived PID file contains PID of an |
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# existing non-keepalived process. This situation can happen e.g. |
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# after hard node reset. |
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spawn_process = helpers.SleepyProcessFixture() |
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self.useFixture(spawn_process) |
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with open(pid_file, "w") as f_pid_file: |
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f_pid_file.write("%s" % spawn_process.pid) |
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self._spawn_keepalived(self.manager) |
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def test_keepalived_spawns_conflicting_pid_base_process(self): |
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process = self.manager.get_process() |
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pid_file = process.get_pid_file_name() |
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self._test_keepalived_spawns_conflicting_pid(process, pid_file) |
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def test_keepalived_spawns_conflicting_pid_vrrp_subprocess(self): |
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process = self.manager.get_process() |
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pid_file = process.get_pid_file_name() |
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self._test_keepalived_spawns_conflicting_pid( |
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process, |
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self.manager.get_vrrp_pid_file_name(pid_file))
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