The keystone container was changed to only add a keystone user. The rest
of the infrastructure in Kolla expects the name "admin" from a "can I
use a client to access the APIs perspective." As a result, we need a user
for keystone and a user for admin which this patch adds.
Change-Id: I3a3e938f946df1fd5982e89397ef61368f1f3674
857a2b1dd2