Kubernetes worker – components and function

Kubernetes worker or Minion or Node runs the actual workload.
It reports the status of the application to the cluster “Master” and also listens to any change in the application definition on the Master.

It has three components:

1. Kubelet
   Registers a node with its cluster
   It watches the AI server for changes in the definition of the application
   instantiates pods
   reports the health status of the pods to the master
   endpoint is 10255
2. Kube proxy
   Handles the networking for the Kubernetes
   All containers in a pod shares the same IP address
   Load balancing across all pods
   
3. Container engine
   This is where the container runs (container runtime environment like Docker engine)
   It does everything like pulling an image, starting a container, stopping etc