configure Script Fails with TypeError if the Undercloud Runs on Keystone v2

[Dominique Poulain]

Undercloud: OpenStack Mitaka w/ Keystone v2
revno: 298

Steps followed:

$ bzr branch lp:openstack-charm-testing openstack-charm-testing-local
[...]
$ cd openstack-charm-testing-local
$ juju deployer -B -c default.yaml -d -v -s 20 -r 3 xenial-mitaka
[...]
./configure
[...]
Traceback (most recent call last):
  File "./bin/post-deploy-config", line 44, in <module>
    auth_url=os.environ['OS_AUTH_URL'])
  File "/usr/lib/python3/dist-packages/keystoneauth1/identity/v3/base.py", line 281, in __init__
    super(AuthConstructor, self).__init__(auth_url, [method], **kwargs)
  File "/usr/lib/python3/dist-packages/keystoneauth1/identity/v3/base.py", line 109, in __init__
    super(Auth, self).__init__(auth_url=auth_url, **kwargs)
  File "/usr/lib/python3/dist-packages/positional/__init__.py", line 94, in inner
    return func(*args, **kwargs)
TypeError: __init__() got an unexpected keyword argument 'tenant_name'

A workaround is:

$ diff -u post-deploy-config.ori post-deploy-config
--- post-deploy-config.ori 2017-05-24 08:24:53.101691000 +0000
+++ post-deploy-config 2017-05-24 08:55:39.719445000 +0000
@@ -10,7 +10,7 @@
 from neutronclient.v2_0 import client as ne_client
 from novaclient import client as no_client

-import keystoneauth1.identity.v3 as keystoneauth1
+import keystoneauth1.identity.v2 as keystoneauth1
 import keystoneauth1.session as keystoneauth1_session

With that workaround in place, we get a little further along the configure script - we then run into LP#1693146.