Source code for designate.scheduler.filters.fallback_filter

# Copyright 2016 Hewlett Packard Enterprise Development Company, L.P.
# 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
# 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 designate.conf
from designate import objects
from designate.scheduler.filters import base

CONF = designate.conf.CONF

[docs] class FallbackFilter(base.Filter): """If there is no zones available to schedule to, this filter will insert the default_pool_id. .. note:: This should be used as one of the last filters, if you want to preserve behavior from before the scheduler existed. """ name = 'fallback' """Name to enable in the ``[designate:central:scheduler].filters`` option list """ def filter(self, context, pools, zone): if not pools: pools = objects.PoolList() pools.append( objects.Pool(id=CONF['service:central'].default_pool_id) ) return pools