Start with a minimal install of CentOS
curl https://github.com/raw/rvmey/KubernetesCentosInstall/master/kubinit.sh -o kubinit.sh
chmod +x kubinit.sh
./kubinit.sh
Use kubworker.sh to add worker nodes.
NOTE: You might notice the master node installs with 1.8.3, but once it's up and running you can use yum -y update to update it to 1.9.0. For some reason 1.9.0 wouldn't create the cluster but 1.8.3 does.
I used these scripts to create the cluster I used for this video: https://youtu.be/MyvRFbHErJQ