Client for OpenStack services
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python-openstackclient/openstackclient/identity/client.py

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# Copyright 2012-2013 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.
#
import logging
from keystoneclient.v2_0 import client as identity_client_v2
from osc_lib import utils
from openstackclient.i18n import _
LOG = logging.getLogger(__name__)
DEFAULT_API_VERSION = '3'
API_VERSION_OPTION = 'os_identity_api_version'
API_NAME = 'identity'
API_VERSIONS = {
'2.0': 'openstackclient.identity.client.IdentityClientv2',
'2': 'openstackclient.identity.client.IdentityClientv2',
'3': 'keystoneclient.v3.client.Client',
}
# Translate our API version to auth plugin version prefix
AUTH_VERSIONS = {
'2.0': 'v2',
'2': 'v2',
'3': 'v3',
}
def make_client(instance):
"""Returns an identity service client."""
identity_client = utils.get_client_class(
API_NAME,
instance._api_version[API_NAME],
API_VERSIONS)
LOG.debug('Instantiating identity client: %s', identity_client)
# Remember interface only if interface is set
kwargs = utils.build_kwargs_dict('interface', instance.interface)
client = identity_client(
session=instance.session,
region_name=instance.region_name,
**kwargs
)
return client
def build_option_parser(parser):
"""Hook to add global options"""
parser.add_argument(
'--os-identity-api-version',
metavar='<identity-api-version>',
default=utils.env('OS_IDENTITY_API_VERSION'),
help=_('Identity API version, default=%s '
'(Env: OS_IDENTITY_API_VERSION)') % DEFAULT_API_VERSION,
)
return parser
class IdentityClientv2(identity_client_v2.Client):
"""Tweak the earlier client class to deal with some changes"""
def __getattr__(self, name):
# Map v3 'projects' back to v2 'tenants'
if name == "projects":
return self.tenants
else:
raise AttributeError(name)