138 lines
5.2 KiB
Python
138 lines
5.2 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from keystoneclient.v2_0 import client as ksclient
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from tuskarclient.common import utils
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def _get_ksclient(**kwargs):
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"""Get an endpoint and auth token from Keystone.
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:param kwargs: keyword args containing credentials:
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* username: name of user
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* password: user's password
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* auth_url: endpoint to authenticate against
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* insecure: allow insecure SSL (no cert verification)
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* tenant_{name|id}: name or ID of tenant
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"""
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return ksclient.Client(username=kwargs.get('username'),
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password=kwargs.get('password'),
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tenant_id=kwargs.get('tenant_id'),
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tenant_name=kwargs.get('tenant_name'),
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auth_url=kwargs.get('auth_url'),
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insecure=kwargs.get('insecure'))
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def _get_endpoint(client, **kwargs):
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"""Get an endpoint using the provided keystone client."""
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return client.service_catalog.url_for(
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service_type=kwargs.get('service_type') or 'management',
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endpoint_type=kwargs.get('endpoint_type') or 'publicURL')
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def _get_token_and_endpoint(**kwargs):
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token = kwargs.get('os_auth_token')
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endpoint = kwargs.get('tuskar_url')
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ks_kwargs = {
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'username': kwargs.get('os_username'),
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'password': kwargs.get('os_password'),
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'tenant_id': kwargs.get('os_tenant_id'),
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'tenant_name': kwargs.get('os_tenant_name'),
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'auth_url': kwargs.get('os_auth_url'),
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'service_type': kwargs.get('os_service_type'),
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'endpoint_type': kwargs.get('os_endpoint_type'),
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'insecure': kwargs.get('insecure'),
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}
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# create Keystone Client if we miss token or endpoint
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if not (token and endpoint):
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_ksclient = _get_ksclient(**ks_kwargs)
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# get token if needed
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if not token:
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token = _ksclient.auth_token
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# get endpoint if needed
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if not endpoint:
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endpoint = _get_endpoint(_ksclient, **ks_kwargs)
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return token, endpoint
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def _get_client_with_token(api_version, **kwargs):
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token = kwargs.get('os_auth_token')
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endpoint = kwargs.get('tuskar_url')
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# test if we have all needed parameters
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if token and endpoint:
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client_kwargs = {
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'token': token,
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'insecure': kwargs.get('insecure'),
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'timeout': kwargs.get('timeout'),
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'ca_file': kwargs.get('ca_file'),
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'cert_file': kwargs.get('cert_file'),
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'key_file': kwargs.get('key_file'),
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}
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# return new Client
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return Client(api_version, endpoint, **client_kwargs)
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# return None if we do not have all needed parameters
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else:
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return None
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def _get_client_with_credentials(api_version, **kwargs):
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username = kwargs.get('os_username')
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password = kwargs.get('os_password')
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auth_url = kwargs.get('os_auth_url')
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tenant_id = kwargs.get('os_tenant_id')
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tenant_name = kwargs.get('os_tenant_name')
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# test if we have all needed parameters
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if (username and password and auth_url and
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(tenant_id or tenant_name)):
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token, endpoint = _get_token_and_endpoint(**kwargs)
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# call for a client with token and endpoint
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return _get_client_with_token(api_version, endpoint=endpoint,
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token=token, **kwargs)
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# returns None if we do not have needed parameters
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else:
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return None
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def get_client(api_version, **kwargs):
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"""Get an authtenticated client, based on the credentials
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in the keyword args.
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:param api_version: the API version to use ('1' or '2')
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:param kwargs: keyword args containing credentials, either:
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* os_auth_token: pre-existing token to re-use
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* tuskar_url: tuskar API endpoint
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or:
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* os_username: name of user
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* os_password: user's password
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* os_auth_url: endpoint to authenticate against
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* insecure: allow insecure SSL (no cert verification)
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* os_tenant_{name|id}: name or ID of tenant
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"""
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# Try call for client with token and endpoint.
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# If it returns None, call for client with credentials
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client = (_get_client_with_token(api_version, **kwargs) or
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_get_client_with_credentials(api_version, **kwargs))
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# If we have a client, return it
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if client:
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return client
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# otherwise raise error
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else:
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raise ValueError("Need correct set of parameters")
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def Client(version, *args, **kwargs):
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module = utils.import_versioned_module(version, 'client')
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client_class = getattr(module, 'Client')
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return client_class(*args, **kwargs)
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