We will create a simple Node JS application and dockerize it. We will use the official Node JS image(alpine) from Docker Hub.You can find the official Node JS image here.

• Docker installed on your machine. You can download Docker from here.

• Create docker image for Node JS application with the following command:

docker build -t nodejs-app .

After running the above command, it will create a docker image with the name nodejs-app. we can view the list of docker images with the following command:

docker images

• Run the docker container with the following command:

docker run -d -p 3000:3000 nodejs-app

It will run the docker container in detached mode and expose the port 3000. We can view the list of running docker containers with the following command:

docker container ps