Kubernetes: Node vs Hosts vs Cluster terminology

Question

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?

Answer 1

• Host: some machine (physical or virtual)
• Master: a host running Kubernetes API server and other master systems
• Node: a host running kubelet + kube-proxy that pods can be scheduled onto
• Cluster: a collection of one or masters + one or more nodes