Files
neutron/neutron/cmd/runtime_checks.py
elajkat 4dca7fae87 Keepalived version check
[0] introduced keepalived_use_no_track config option which defaults to
True.
Here I add and extra runtime check to check keepalived version, and
only if that version is bigger than 2.0.0 add the no_track option to
the keepalived config file.

[0] https://review.opendev.org/745641

Change-Id: I16dce5b3faf62ce02535170a1b0e1ad22ee8ac30
Closes-Bug: #1896506
2020-10-15 19:56:49 +02:00

55 lines
2.0 KiB
Python

# Copyright (c) 2014 OpenStack Foundation.
# 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.
import packaging
from neutron_lib import exceptions
from oslo_log import log as logging
from neutron.agent.linux import utils as agent_utils
LOG = logging.getLogger(__name__)
# NOTE: Runtime checks are strongly discouraged in favor of sanity checks
# which would be run at system setup time. Please consider writing a
# sanity check instead.
def dnsmasq_host_tag_support():
cmd = ['dnsmasq', '--test', '--dhcp-host=tag:foo']
env = {'LC_ALL': 'C', 'PATH': '/sbin:/usr/sbin'}
try:
agent_utils.execute(cmd, addl_env=env, log_fail_as_error=False)
except exceptions.ProcessExecutionError:
return False
return True
def keepalived_use_no_track_support():
cmd = ['keepalived', '--version']
env = {'LC_ALL': 'C', 'PATH': '/sbin:/usr/sbin'}
keepalived_with_track = packaging.version.parse("2.0.0")
try:
# keepalived --version returns with stderr only
res = agent_utils.execute(cmd, addl_env=env, log_fail_as_error=False,
return_stderr=True)
# First line is the interesting one here from stderr
version_line = res[1].split('\n')[0]
keepalived_version = packaging.version.parse(version_line.split()[1])
return keepalived_version >= keepalived_with_track
except exceptions.ProcessExecutionError:
return False