55 lines
2.0 KiB
Python
55 lines
2.0 KiB
Python
# Copyright (c) 2014 OpenStack Foundation.
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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 packaging import version
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from neutron_lib import exceptions
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from oslo_log import log as logging
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from neutron.agent.linux import utils as agent_utils
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LOG = logging.getLogger(__name__)
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# NOTE: Runtime checks are strongly discouraged in favor of sanity checks
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# which would be run at system setup time. Please consider writing a
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# sanity check instead.
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def dnsmasq_host_tag_support():
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cmd = ['dnsmasq', '--test', '--dhcp-host=tag:foo']
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env = {'LC_ALL': 'C', 'PATH': '/sbin:/usr/sbin'}
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try:
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agent_utils.execute(cmd, addl_env=env, log_fail_as_error=False)
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except exceptions.ProcessExecutionError:
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return False
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return True
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def keepalived_use_no_track_support():
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cmd = ['keepalived', '--version']
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env = {'LC_ALL': 'C', 'PATH': '/sbin:/usr/sbin'}
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keepalived_with_track = version.parse('2.0.3')
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try:
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# keepalived --version returns with stderr only
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res = agent_utils.execute(cmd, addl_env=env, log_fail_as_error=False,
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return_stderr=True)
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# First line is the interesting one here from stderr
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version_line = res[1].split('\n')[0]
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keepalived_version = version.parse(version_line.split()[1])
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return keepalived_version >= keepalived_with_track
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except exceptions.ProcessExecutionError:
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return False
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