Upgrade: Now show users online 

• First build the container:

docker build -t node_project_container .

• Then, run it:

docker run -it -p 3000:3000 --volume ${PWD}/app:/app --name=node_project_container --rm node_project_container

There are two scripts created for building and running the container.

• First build the container:

./scripts/build

Once the container is builded, it not require any new build for code changes.

• Then, run it:

./scripts/run

• [How to use Docker with Node.js a step-by-step tutorial] (https://geshan.com.np/blog/2020/11/nodejs-with-docker/)