Comment 4 for bug 1713616

I ran this issue by a couple people who are more familiar with keystoneauth [0].

There was an issue with keystoneauth 3.1.0 with version discovery. The suggestions is to either upgrade to 3.2.0 or try removing the trailing slash from the endpoint. More context from that specific issue can be found in https://review.openstack.org/#/c/492484/ .

[0] http://eavesdrop.openstack.org/irclogs/%23openstack-keystone/%23openstack-keystone.2017-10-03.log.html#t2017-10-03T20:42:20