How do you use Docker with Node.js?

Docker packages your app and its environment into a container for consistent deployment.

Basic steps:

• Create a Dockerfile:

FROM node:18

WORKDIR /app

COPY package*.json ./

RUN npm install --production

COPY . .

CMD ["node", "app.js"]

• Build and run the container:

docker build -t my-node-app .

docker run -p 3000:3000 my-node-app