28 lines
1.1 KiB
Python
28 lines
1.1 KiB
Python
# Copyright (c) 2014 Cisco Systems Inc.
|
|
# 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.
|
|
|
|
from nova.scheduler.filters import availability_zone_filter
|
|
from nova.scheduler.solvers import constraints
|
|
|
|
|
|
class AvailabilityZoneConstraint(constraints.BaseFilterConstraint):
|
|
"""Selects Hosts by availability zone.
|
|
|
|
Works with aggregate metadata availability zones, using the key
|
|
'availability_zone'
|
|
Note: in theory a compute node can be part of multiple availability_zones
|
|
"""
|
|
host_filter_cls = availability_zone_filter.AvailabilityZoneFilter
|