- Create Dockerfile
- docker build -t username/circle-area:3.0 .
- docker push username/circle-area
- docker run -e diameter=9 username/circle-area:3.0
- docker run -e diameter=2 username/circle-area:3.0
- docker run -e diameter=11 --rm -it username/circle-area:3.0 //This container will get removed after it completes running'
- docker tag oldname repo/oldname //use to tag images again with repo name