The architecture of Kubernetes consists of following components:
Master: There is a master node that is responsible for managing the cluster. Master performs following functions in a cluster.
- Scheduling Applications
- Maintaining desired state of application
- Scaling applications
- Applying updates to applications
Nodes: A Node in Kubernetes is responsible for running an application. The Node can be a Virtual Machine or a Computer in the cluster. There is software called Kubelet on each node. This software is used for managing the node and communicating with the Master node in cluster.
There is a Kubernetes API that is used by Nodes to communicate with the Master. When we deploy an application on Kubernetes, we request Master to start application containers on Nodes.Read the full book at www.amazon.com