The Health page gives administrators a snapshot of the cluster’s component resources.

cluster health component status

These Components monitor and maintain the cluster. They are the:

  1. controller-manager - a collection of controller processes that maintains the state of the cluster

  2. scheduler - keeps things running smoothly by watching everything affecting availability, performance, and capacity

  3. etcd-0 - the brains of the operation as the data store for the entire cluster

Take a deep dive into Kubernetes Components.