Tacker: ETSI MANO NFV Orchestrator / VNF Manager. See https://wiki.openstack.org/wiki/Tacker
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tacker/tacker/tests/functional/keystone.py

71 lines
2.3 KiB

# Copyright 2016 Brocade Communications System, Inc.
# 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.
import time
from keystoneauth1 import exceptions
from keystoneauth1.identity import v3
from keystoneauth1 import session
from keystoneclient import client
from oslo_config import cfg
from oslo_log import log as logging
LOG = logging.getLogger(__name__)
CONF = cfg.CONF
KEYSTONE_CLIENT_RETRIES = 3
KEYSTONE_RETRY_WAIT = 5
class Keystone(object):
"""Keystone module for OpenStack VIM
Handles identity operations for a given OpenStack
instance such as version, session and client
"""
def get_version(self, base_url=None):
try:
keystone_client = client.Client(auth_url=base_url)
except exceptions.ConnectionError:
raise
return keystone_client.version
def get_session(self, auth_plugin, verify=False):
ses = session.Session(auth=auth_plugin, verify=verify)
return ses
def get_endpoint(self, ses, service_type, region_name=None):
return ses.get_endpoint(service_type, region_name)
def initialize_client(self, **kwargs):
verify = 'True' == kwargs.pop('cert_verify', 'False')
auth_plugin = v3.Password(**kwargs)
ses = self.get_session(auth_plugin=auth_plugin, verify=verify)
client_retries = KEYSTONE_CLIENT_RETRIES
while client_retries > 0:
try:
cli = client.Client('v3', session=ses)
break
except exceptions.InternalServerError:
LOG.warning("keystone service responds with 500 "
"(InternalServerError).")
client_retries = client_retries - 1
if client_retries == 0:
raise
time.sleep(KEYSTONE_RETRY_WAIT)
return cli