When building RHEL-based containers, there is an option to set the modules used. This review adds the ability to pass the rhel-modules option from tripleo_container_image_build. The rhel-modules option is already added to the client: https://opendev.org/openstack/python-tripleoclient/src/branch/master/tripleoclient/v2/tripleo_container_image.py#L212 Change-Id: Ia39b61f6fb6728fad62ee803f05d94a5f604cf6d