Testing OpenStack upgrades
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tobiko/tobiko/openstack/_client.py

84 lines
2.3 KiB

# Copyright 2019 Red Hat
#
# 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 __future__ import absolute_import
import abc
from oslo_log import log
import tobiko
LOG = log.getLogger(__name__)
class OpenstackClientFixture(tobiko.SharedFixture):
client = None
session = None
def __init__(self, session=None, client=None):
super(OpenstackClientFixture, self).__init__()
if session:
self.session = session
if client:
self.client = client
def setup_fixture(self):
self.setup_client()
def setup_client(self):
client = self.client
if not client:
self.session = session = self.get_session()
self.client = client = self.init_client(session=session)
return client
def get_session(self):
from tobiko.openstack import keystone
return keystone.keystone_session(self.session)
@abc.abstractmethod
def init_client(self, session):
raise NotImplementedError
class OpenstackClientManager(object):
def __init__(self):
self.clients = {}
def get_client(self, session=None, shared=True, init_client=None):
if shared:
if session and tobiko.is_fixture(session):
key = tobiko.get_fixture_name(session)
else:
key = session
client = self.clients.get(key)
if client:
return client
init_client = init_client or self.create_client
assert callable(init_client)
LOG.debug('Initialize OpenStack client: %r(session=%r)',
init_client, session)
client = init_client(session=session)
if shared:
self.clients[key] = client
return client
def create_client(self, session):
raise NotImplementedError