I actually looked at kubespray first but first of all it did not work out of box as promised. And to troubleshoot it you basically had to know about kubernetes already.

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.