Having not found and existing one, I created Ansible roles for deploying a full Librenms server, and for deploying distributed pollers. Can be used in AWX/Tower, or just right from Ansible.
Librenms Server Deploys on CentOS/RedHat, Debian, and Ubuntu and Nginx as the front-end.
Poller deploys on the same, with the addition of Rasberry PI for lightweight remote pollers.