Initialize Keystone session using the new keystone package.

Change-Id: I5e9ca6201431680a65888830cffabf332fddeb1f

tobiko/common/clients.py

@@ -31,14 +31,8 @@ class ClientManager(object):
     def session(self):
         """Returns keystone session."""
         if self._session is None:
-            from keystoneauth1 import loading
-            from keystoneauth1 import session
-            loader = loading.get_plugin_loader('password')
-            credentials = (self.credentials or
-                           keystone.default_keystone_credentials()).to_dict()
-            del credentials['api_version']  # this parameter is not accepted
-            auth = loader.load_from_options(**credentials)
-            self._session = session.Session(auth=auth, verify=False)
+            self._session = keystone.get_keystone_session(
+                credentials=self.credentials)
         return self._session
 
     @property

tobiko/openstack/keystone/__init__.py

@@ -23,3 +23,4 @@ InvalidKeystoneCredentials = credentials.InvalidKeystoneCredentials
 
 KeystoneSessionFixture = session.KeystoneSessionFixture
 KeystoneSessionManager = session.KeystoneSessionManager
+get_keystone_session = session.get_keystone_session

tobiko/openstack/keystone/session.py

@@ -87,3 +87,11 @@ class KeystoneSessionManager(object):
 
 
 SESSIONS = KeystoneSessionManager()
+
+
+def get_keystone_session(credentials=None, shared=True, init_session=None,
+                         manager=None):
+    manager = manager or SESSIONS
+    session = manager.get_session(credentials=credentials, shared=shared,
+                                  init_session=init_session)
+    return tobiko.setup_fixture(session).session