# 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 os
import shutil
import signal

import netaddr
from oslo.config import cfg

from neutron.agent.linux import ip_lib
from neutron.agent.linux import keepalived
from neutron.common import constants as l3_constants
from neutron.openstack.common.gettextutils import _LE
from neutron.openstack.common import log as logging
from neutron.openstack.common import periodic_task

LOG = logging.getLogger(__name__)

HA_DEV_PREFIX = 'ha-'

OPTS = [
    cfg.StrOpt('ha_confs_path',
               default='$state_path/ha_confs',
               help=_('Location to store keepalived/conntrackd '