HA Kubernetes
Came across this github repo which does exactally what I want for a HA kubernetets master setup: https://github.com/salmanb/Kubernetes-HA-on-baremetal . Using coreos makes this a bit different but it is still easily adaptable.
# kubectl get nodes
NAME STATUS ROLES AGE VERSION
node01.testbed.lan Ready master 23d v1.9.0
node02.testbed.lan Ready master 23d v1.9.0
node03.testbed.lan Ready master 23d v1.9.0
node04.testbed.lan Ready node 23d v1.9.0
node05.testbed.lan Ready node 23d v1.9.0
node06.testbed.lan Ready node 23d v1.9.0
node07.testbed.lan Ready node 12d v1.9.0
node08.testbed.lan Ready node 12h v1.9.0