http://kubernetes.io/docs/getting-started-guides/centos/centos_manual_config/
"This guide will only get ONE node working. Multiple nodes requires a functional networking configuration done outside of kubernetes."
So, is a node made up of many hosts?
I thought cluster is made up of many hosts. Is the cluster made up of many nodes instead?
Each node had a master and minions so a cluster has more than one master?
kubelet + kube-proxy that pods can be scheduled onto