Comment 5 for bug 1776301

The issue seems this:- https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset030-master/fbc106b/subnode-2/var/log/containers/keystone/keystone.log.txt.gz#_2018-06-11_20_16_29_824

The issue seems to be happening because of flask effort in keystone:- https://review.openstack.org/#/q/topic:flaskification+(status:open+OR+status:merged),

They have note to remove support of paste.ini:-
Remove pastedeploy:- https://review.openstack.org/#/c/571979/
Release note that mentions adjusting deployment tools:- https://review.openstack.org/#/c/572827/4/releasenotes/notes/convert-keystone-to-flask-80d980e239b662b0.yaml