This will solve the following issue when running the rally bootstrap
container:
oslo_config.cfg.ConfigFilesPermissionDeniedError: Failed to open some
config files: /etc/rally/rally.conf
TrivialFix
Change-Id: I90c840850ea0579e375a7c75f3192fe0387f4270
Useful for upgrade etc., which is preferablly done serially.
Example usage: tools/kolla-ansible deploy OR tools/kolla-ansible upgrade
Closes-Bug: #1576708
DocImpact
Change-Id: I34b2e16f8ce53e472a4682a4738c4ac0f5abf00c