How can I use Docker to manage the dependencies of my Node.js application?

Containerizing a Node.js app with Docker is relatively simple. Simply do the steps below:

1. Create a Dockerfile for your Node.js app.
2. Use a Node.js base image that matches your app's Node.js version.
3. Copy your application code into the Docker image.
4. Use npm or yarn commands to install project dependencies within the Docker image.
5. Define a command to start your Node.js application within the Dockerfile.
6. Build the Docker image.
7. Run containers from the image, which will include your app and its dependencies.

By containerizing your Node.js app, you can ensure consistent, isolated, and reproducible environments, making it much easier to manage dependencies across different systems.