Tempest setup(tempestconf) failing while creating role with Error:- Duplicate entry found with name Member

[yatin]

After [1] Tempest setup is failing while creating Member role.

Keystone roles are not case sensitive, both "member" and "Member" are same. Review [1] is creating a role with name "member", while tempestconf and puppet-ceph(other's using keystone_role) tries to create a role with name: "Member". This results in creating the role with Error:- Conflict occurred attempting to store role - Duplicate entry found with name Member

Logs:-
https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset017-master/7c1279e/undercloud/home/jenkins/tempest.log.txt.gz
https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-ovb-1ctlr_1comp-featureset002-master-upload/76cf5ef/undercloud/home/jenkins/tempest.log.txt.gz

https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset019-master/38c2548/undercloud/home/jenkins/overcloud_deploy.log.txt.gz

We need to handle the case sensitivity of roles while trying to create it.

[1] https://review.openstack.org/#/c/572243/

[yatin (yatinkarel)]

Proposed:- https://review.openstack.org/#/c/576356