https://dev.to/akanksha_9560/docker-for-frontend-developers-1dk5
docker build -t hello-world . docker images docker container run -p 4001:8081 hello-world
docker rmi devopsveekvn/sample
docker tag hello-world devopsveekvn/sample docker push devopsveekvn/sample:latest docker pull devopsveekvn/sample:latest
- docker pull devopsveekvn/sample:latest
- docker container run -p 4000:8081 sample
- open http://localhost:4000