Comment 3 for bug 1520495

This looks like a user configuration issue. SSL was never enabled for services in this environment:
root@node-2:~# keystone endpoint-list | grep 5000
| bd7d4526665447dd9f423c4424b69aaa | RegionOne | http://10.109.28.3:5000/v2.0 | http://10.109.26.2:5000/v2.0 | http://10.109.26.2:35357/v2.0 | 0fc8f85e754a42098cef78cb3abbc848 |

root@node-2:~# hiera public_ssl
{"hostname"=>"10.109.28.3",
 "horizon"=>false,
 "services"=>false,
(output truncated)

That's why OSTF gets an SSL error when trying to reach https://10.109.28.3:5000/v2.0, which is because SSL isn't enabled here.