How can I use Docker Compose with a Node.js application?

How can I use Docker Compose with a Node.js application?

You can use Docker Compose to define and run multi-container Docker applications. For a Node.js app, you'll need a docker-compose.yml file that specifies your Node.js service and any other services like a database.

What should I include in the docker-compose.yml file?

In your docker-compose.yml, you should define the Node.js service, specify the Docker image, set environment variables, and map ports. You might also want to include a database service if your app requires one.

Can you give me a sample docker-compose.yml for a Node.js app with MongoDB?

Sure! Here's a simple example:

version: '3'
services:
  web:
    image: node:14
    working_dir: /usr/src/app
    volumes:
      - .:/usr/src/app
    ports:
      - '3000:3000'
    environment:
      - MONGO_URI=mongodb://mongo:27017/mydatabase
  mongo:
    image: mongo
    ports:
      - '27017:27017'