Source code for designate.quota.impl_storage

# Copyright 2013 Hewlett-Packard Development Company, L.P.
# Author: Kiall Mac Innes <>
# 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 six
from oslo_config import cfg
from oslo_log import log as logging

from designate import exceptions
from designate import storage
from designate import objects
from designate.quota import base
from import transaction

LOG = logging.getLogger(__name__)

[docs]class StorageQuota(base.Quota): __plugin_name__ = 'storage' def __init__(self): super(StorageQuota, self).__init__() # TODO(kiall): Should this be tied to central's config? storage_driver = cfg.CONF['service:central'].storage_driver = storage.get_storage(storage_driver) def _get_quotas(self, context, tenant_id): quotas =, { 'tenant_id': tenant_id, }) return dict((q['resource'], q['hard_limit']) for q in quotas)
[docs] def get_quota(self, context, tenant_id, resource): context = context.deepcopy() context.all_tenants = True quota =, { 'tenant_id': tenant_id, 'resource': resource, }) return {resource: quota['hard_limit']}
[docs] @transaction def set_quota(self, context, tenant_id, resource, hard_limit): context = context.deepcopy() context.all_tenants = True def create_quota(): quota = objects.Quota( tenant_id=tenant_id, resource=resource, hard_limit=hard_limit), quota) def update_quota(quota): quota.hard_limit = hard_limit, quota) if resource not in list(six.iterkeys( self.get_default_quotas(context))): raise exceptions.QuotaResourceUnknown("%s is not a valid quota " "resource", resource) try: create_quota() except exceptions.Duplicate: quota =, { 'tenant_id': tenant_id, 'resource': resource, }) update_quota(quota) return {resource: hard_limit}
[docs] @transaction def reset_quotas(self, context, tenant_id): context = context.deepcopy() context.all_tenants = True quotas =, { 'tenant_id': tenant_id, }) for quota in quotas:, quota['id'])