Kubernetes concepts, cluster, nodes, docker container, image, Dockerfile

Kubernetes concepts to remember:

1. Kubernetes Cluster: combination of large number of node machines

2. node machines:where Kubernetes softwareis installed and docker containers are hosted

3. docker container:each node machines contain large number of docker containers

4. docker image:Docker instructions are build and stored as image

5.Dockerfile:Docker instructionsare written in markup language and stored in Dockerfile