cinder/cinder/api/contrib/used_limits.py

72 lines
2.7 KiB
Python

# Copyright 2012 OpenStack Foundation
#
# 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 cinder.api import extensions
from cinder.api import microversions as mv
from cinder.api.openstack import wsgi
from cinder.policies import limits as policy
from cinder import quota
QUOTAS = quota.QUOTAS
class UsedLimitsController(wsgi.Controller):
@wsgi.extends
def index(self, req, resp_obj):
context = req.environ['cinder.context']
if context.authorize(
policy.EXTEND_LIMIT_ATTRIBUTE_POLICY, fatal=False):
params = req.params.copy()
req_version = req.api_version_request
# TODO(wangxiyuan): Support "tenant_id" here to keep the backwards
# compatibility. Remove it once we drop all support for "tenant".
if (req_version.matches(None, mv.GROUP_REPLICATION) or
not context.is_admin):
params.pop('project_id', None)
params.pop('tenant_id', None)
project_id = params.get(
'project_id', params.get('tenant_id', context.project_id))
quotas = QUOTAS.get_project_quotas(context, project_id,
usages=True)
quota_map = {
'totalVolumesUsed': 'volumes',
'totalGigabytesUsed': 'gigabytes',
'totalSnapshotsUsed': 'snapshots',
'totalBackupsUsed': 'backups',
'totalBackupGigabytesUsed': 'backup_gigabytes'
}
used_limits = {}
for display_name, single_quota in quota_map.items():
if single_quota in quotas:
used_limits[display_name] = quotas[single_quota]['in_use']
resp_obj.obj['limits']['absolute'].update(used_limits)
class Used_limits(extensions.ExtensionDescriptor):
"""Provide data on limited resources that are being used."""
name = "UsedLimits"
alias = 'os-used-limits'
updated = "2013-10-03T00:00:00+00:00"
def get_controller_extensions(self):
controller = UsedLimitsController()
extension = extensions.ControllerExtension(self, 'limits', controller)
return [extension]