How to containerize a Node.js application

Get the sample application

To get started, clone the sample application provided for this guide. Open a terminal, navigate to your preferred working directory, and run the following command to clone the repository:

git clone https://github.com/docker/docker-nodejs-sample && cd docker-nodejs-sample

Initialize Docker assets

Navigate to the docker-nodejs-sample directory and run the docker init command in your terminal. The docker init command provides default configurations, but you’ll need to answer a few questions about your application. Use the example below as a reference to respond to the prompts from docker init, ensuring your answers match those provided.

The following content should be in your docker-nodejs-sample directory:

Run the application

Inside the docker-nodejs-sample directory, run the following command in a terminal.

docker compose up --build

• Press v to view in Docker Desktop and click 3000:3000. You should see a simple todo application.
• In the terminal, run the following command to stop the application.

docker compose down

Thanks for staying till the end