Commands to run:
1. Docker should be installed on that machine
2. docker pull nikhilnidhi/nodeapp
3. docker pull mongo ( This is official docker image of mongo)
4. docker run -p 27017:27017 -d — name db mongo ( This one I created on top of one docker image which will install the required software like nodejs)
5. docker run -p 3000:3000 -p 35729:35729 — name nodeapp — link db:db nikhilnidhi/nodeapp