ansible docker_service - how to specify user to run container

setup
client
installed with

ansible 2.3.1.0
python version = 2.7.12 (v2.7.12:d33e0cf91556, Jun 26 2016, 12:10:39) [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]

host: RHEL 7
installed with

docker version 17.05.0-ce, build 89658be

docker-compose version 1.13.0, build 1719ceb

base image: ansible/centos7-ansible

Basic setup
A first ansible script

  • sets up the host server with docker, docker-compose, etc …

  • syncs the files necessary to create 2 containers: Apache tomEE and Mongo

  • Dockerfile, playbook.yml, vars.yml + any additional artefacts needed
    The base container is ansible/centos7-ansible and NOT mongo or tomee because I want to set up specific installs.
    Each images gets a specific playbook which is run during the build process
    The last section of the master ansible script is this

`

  • name: build and start both containers in compose style
    docker_service:
    state: “present”
    project_src: “{{ host_home }}”
    project_name: “orson”
    restarted: “yes”
    `

This section effectively builds the images and set them running on the same virtual network. And all of this works.
I just need to do one last thing. Part of the specific install is to create an application user and have all processes run under that user.
In native docker I can run

`
docker run -u username --name container_name -d image_name

`

But I don’t see any equivalent of the -u option in the docker_service module.
Did I miss it? Or is there a way to pass it through another way.

Thanks for any help