Are they OSS by any chance? And what kind of tasks do they do?
They are focused only on CentOS 7, you might be able to find them yourself. As far as I can tell they include everything except persistent storage and HA control plane.
So it made a lot of sense to start at the official docs. And while I'm reading the docs, why not build the cluster at the same time. And while I'm building the cluster, why not write each step down in Ansible so I won't have to repeat myself.
So end result is my own ansible setup that I'm happy with and I know inside and out.
It always bothered me to run other people's ansible playbooks. I'm too much of a control freak.