Drop "os" prefix for project id

Keystone session now returns project id without "os" prefix.
We should drop it as well.

Closes-bug: #1668830
Change-Id: I4ad9d0696c362723c4de7f7283105ba6f396fa96
Co-Authored-By: XueFeng Liu <liu.xuefeng1@zte.com.cn>

releasenotes/notes/remove_os_prefix-14fc4a97527dee81.yaml

@@ -0,0 +1,5 @@
+---
+fixes:
+  - The "os" prefix for project id has been dropped to keep the same with
+    OpenStack and Keystone Client. To keep the backwards compatibility, the "os"
+    prefix still can be used. And it'll be removed in the next release.

zaqarclient/transport/request.py

@@ -45,7 +45,10 @@ def prepare_request(auth_opts=None, data=None, **kwargs):
     auth_backend = auth.get_backend(**(auth_opts or {}))
     req = auth_backend.authenticate(kwargs.get('api'), req)
 
-    project_id = auth_opts.get('options', {}).get('os_project_id', {})
+    option = auth_opts.get('options', {})
+    # TODO(wangxiyuan): To keep backwards compatibility, we leave
+    # "os_project_id" here. Remove it in the next release.
+    project_id = option.get('os_project_id', option.get('project_id'))
 
     # Let's add project id header, only if it will have non-empty value.
     if project_id:

zaqarclient/transport/ws.py

@@ -57,7 +57,11 @@ class WebsocketTransport(base.Transport):
     """
     def __init__(self, options):
         super(WebsocketTransport, self).__init__(options)
-        self._project_id = options['auth_opts']['options']['os_project_id']
+        option = options['auth_opts']['options']
+        # TODO(wangxiyuan): To keep backwards compatibility, we leave
+        # "os_project_id" here. Remove it in the next release.
+        self._project_id = option.get('os_project_id',
+                                      option.get('project_id'))
         self._token = options['auth_opts']['options']['os_auth_token']
         self._websocket_client_id = None
         self._ws = None