Automate Initial Admin User Setup


I am currently trying to deploy a Ghost 3.1.1 via Ansible, which so far works perfectly and my Installation is up an running.
But I want to take this a step further and also create my Admin User via Ansible. Unfortunately I have jet to find a way how to do it.

I found this topic which is similar but ultimately got no response.

Is this possible with the tools existing or do I have to build my own tools?

Thank you in advance and best Regards,