master-vs-worker-nodes

Master Vs Worker nodes

Master nodes has following components:

1. kube-apiserver: it talks to kubelet on worker nodes to manage them.
2. etcd: it is key-value pair storage which stores nodes information and other information.
3. controller: controls the creation and destruction of containers.
4. scheduler

Worker nodes has following components:

1. kubelet: gives the health information about the worker nodes.
2. Container runtime: software responsible for running the containers. For example docker, rkt and CRI-O.