56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
# Copyright 2015 Cloudbase Solutions.
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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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import os
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from oslo_config import cfg
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from oslo_log import log as logging
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from neutron._i18n import _LE
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from neutron.agent.common import config
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from neutron.common import utils as neutron_utils
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if os.name == 'nt':
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from neutron.agent.windows import utils
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else:
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from neutron.agent.linux import utils
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LOG = logging.getLogger(__name__)
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config.register_root_helper(cfg.CONF)
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INTERFACE_NAMESPACE = 'neutron.interface_drivers'
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execute = utils.execute
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def load_interface_driver(conf):
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"""Load interface driver for agents like DHCP or L3 agent.
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:param conf: driver configuration object
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:raises SystemExit of 1 if driver cannot be loaded
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"""
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try:
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loaded_class = neutron_utils.load_class_by_alias_or_classname(
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INTERFACE_NAMESPACE, conf.interface_driver)
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return loaded_class(conf)
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except ImportError:
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LOG.error(_LE("Error loading interface driver '%s'"),
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conf.interface_driver)
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raise SystemExit(1)
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