113 lines
4.1 KiB
Python
113 lines
4.1 KiB
Python
# Copyright (c) 2014 Red Hat, Inc.
|
|
# 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.
|
|
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
|
|
from neutron.agent.linux import external_process
|
|
from neutron.agent.linux import keepalived
|
|
from neutron.agent.linux import utils
|
|
from neutron.tests import base
|
|
from neutron.tests.functional.agent.linux import helpers
|
|
from neutron.tests.unit.agent.linux import test_keepalived
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class KeepalivedManagerTestCase(base.BaseTestCase,
|
|
test_keepalived.KeepalivedConfBaseMixin):
|
|
|
|
def setUp(self):
|
|
super(KeepalivedManagerTestCase, self).setUp()
|
|
cfg.CONF.set_override('check_child_processes_interval', 1, 'AGENT')
|
|
|
|
self.expected_config = self._get_config()
|
|
self.process_monitor = external_process.ProcessMonitor(cfg.CONF,
|
|
'router')
|
|
self.manager = keepalived.KeepalivedManager(
|
|
'router1', self.expected_config, self.process_monitor,
|
|
conf_path=cfg.CONF.state_path)
|
|
self.addCleanup(self.manager.disable)
|
|
|
|
def test_keepalived_spawn(self):
|
|
self.manager.spawn()
|
|
process = external_process.ProcessManager(
|
|
cfg.CONF,
|
|
'router1',
|
|
namespace=None,
|
|
pids_path=cfg.CONF.state_path)
|
|
self.assertTrue(process.active)
|
|
|
|
self.assertEqual(self.expected_config.get_config_str(),
|
|
self.manager.get_conf_on_disk())
|
|
|
|
def _test_keepalived_respawns(self, normal_exit=True):
|
|
self.manager.spawn()
|
|
process = self.manager.get_process()
|
|
pid = process.pid
|
|
utils.wait_until_true(
|
|
lambda: process.active,
|
|
timeout=5,
|
|
sleep=0.01,
|
|
exception=RuntimeError(_("Keepalived didn't spawn")))
|
|
|
|
exit_code = '-15' if normal_exit else '-9'
|
|
|
|
# Exit the process, and see that when it comes back
|
|
# It's indeed a different process
|
|
utils.execute(['kill', exit_code, pid], run_as_root=True)
|
|
utils.wait_until_true(
|
|
lambda: process.active and pid != process.pid,
|
|
timeout=5,
|
|
sleep=0.01,
|
|
exception=RuntimeError(_("Keepalived didn't respawn")))
|
|
|
|
def test_keepalived_respawns(self):
|
|
self._test_keepalived_respawns()
|
|
|
|
def test_keepalived_respawn_with_unexpected_exit(self):
|
|
self._test_keepalived_respawns(False)
|
|
|
|
def _test_keepalived_spawns_conflicting_pid(self, process, pid_file):
|
|
# Test the situation when keepalived PID file contains PID of an
|
|
# existing non-keepalived process. This situation can happen e.g.
|
|
# after hard node reset.
|
|
|
|
spawn_process = helpers.SleepyProcessFixture()
|
|
self.useFixture(spawn_process)
|
|
|
|
with open(pid_file, "w") as f_pid_file:
|
|
f_pid_file.write("%s" % spawn_process.pid)
|
|
|
|
self.manager.spawn()
|
|
utils.wait_until_true(
|
|
lambda: process.active,
|
|
timeout=5,
|
|
sleep=0.1,
|
|
exception=RuntimeError(_("Keepalived didn't spawn")))
|
|
|
|
def test_keepalived_spawns_conflicting_pid_base_process(self):
|
|
process = self.manager.get_process()
|
|
pid_file = process.get_pid_file_name()
|
|
self._test_keepalived_spawns_conflicting_pid(process, pid_file)
|
|
|
|
def test_keepalived_spawns_conflicting_pid_vrrp_subprocess(self):
|
|
process = self.manager.get_process()
|
|
pid_file = process.get_pid_file_name()
|
|
self._test_keepalived_spawns_conflicting_pid(
|
|
process,
|
|
self.manager.get_vrrp_pid_file_name(pid_file))
|