Comment 5 for bug 1695762

Here's a clue: keystone.log contains a critical error about missing bcrypt library:

http://logs.openstack.org/47/470147/4/check/gate-tripleo-ci-centos-7-containers-multinode-nv/edf5f4e/logs/subnode-2/var/log/containers/keystone/keystone.log.txt.gz#_2017-06-05_13_11_39_870

MissingBackendError: bcrypt: no backends available -- recommend you install one (e.g. 'pip install bcrypt')

While an earlier successful job doesn't have that error:

http://logs.openstack.org/70/470370/1/check/gate-tripleo-ci-centos-7-containers-multinode-nv/05ae68e/logs/subnode-2/var/log/containers/keystone/keystone.log.txt.gz