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# Copyright (c) 2012 OpenStack, LLC.
# 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.
"""utilities for multiple APIs."""
from nova import db
from nova.openstack.common import cfg
from nova.openstack.common import jsonutils
from nova.openstack.common import log as logging
availability_zone_opts = [
cfg.StrOpt('internal_service_availability_zone',
default='internal',
help='availability_zone to show internal services under'),
cfg.StrOpt('default_availability_zone',
# deprecated in Grizzly release
deprecated_name='node_availability_zone',
default='nova',
help='default compute node availability_zone'),
]
CONF = cfg.CONF
CONF.register_opts(availability_zone_opts)
LOG = logging.getLogger(__name__)
def set_availability_zones(context, services):
# Makes sure services isn't a sqlalchemy object
services = [dict(service.iteritems()) for service in services]
metadata = db.aggregate_host_get_by_metadata_key(context,
key='availability_zone')
for service in services:
az = CONF.internal_service_availability_zone
if service['topic'] == "compute":
if metadata.get(service['host']):
az = str(metadata[service['host']])[5:-2]
else:
az = CONF.default_availability_zone
service['availability_zone'] = az
return services
def get_host_availability_zone(context, host):
metadata = db.aggregate_metadata_get_by_host(
context.get_admin_context(), host, key='availability_zone')
if 'availability_zone' in metadata:
return list(metadata['availability_zone'])[0]
else:
return CONF.default_availability_zone
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