I'm oversaw completely, that I have to change the SSH-port for all nodes
in the cluster otherwise I cannot provide a meaningful load-balancer for
the git-ssh port in it.
Additionally this allowed me to fix some config errors which I simply
oversaw.
The previous setting of tags still let ansible gather facts for the
roles in question, even though they're not executed. This fix prevent
this from happening.
Since I don't have multiple terraform steps anymore it simply doesn't
make sense to me anymore to split all tasks into separate folders.
Instead I try to be as clear as possible in the README to make it easy
to follow the structure in the future without too much headache.
