ceilometer/ceilometer/polling/discovery/tenant.py

45 lines
1.7 KiB
Python

# Copyright 2014 Red Hat, Inc
#
# 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 oslo_log import log
from ceilometer.polling import plugin_base as plugin
LOG = log.getLogger(__name__)
class TenantDiscovery(plugin.DiscoveryBase):
"""Discovery that supplies keystone tenants.
This discovery should be used when the pollster's work can't be divided
into smaller pieces than per-tenants. Example of this is the Swift
pollster, which polls account details and does so per-project.
"""
def discover(self, manager, param=None):
domains = manager.keystone.domains.list()
LOG.debug('Found %s keystone domains', len(domains))
if domains:
tenants = []
for domain in domains:
domain_tenants = manager.keystone.projects.list(domain)
LOG.debug("Found %s tenants in domain %s", len(domain_tenants),
domain.name)
tenants = tenants + domain_tenants
else:
tenants = manager.keystone.projects.list()
LOG.debug("No domains - found %s tenants in default domain",
len(tenants))
return tenants or []