How can I use Docker with Node.js?

How can I use Docker with Node.js?

You can use Docker to containerize your Node.js application by creating a Dockerfile that specifies the environment.

What should I include in the Dockerfile?

Your Dockerfile should include the base image, copy your application files, install dependencies, and specify the command to run.

Can you give me a sample Dockerfile for a simple Node.js app?

Sure! Here's a basic example:

FROM node:14
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm install
COPY . .
CMD ["node", "app.js"]

This sets up a Node.js environment and runs your app.

How do I build and run the Docker container?

You can build the container using docker build -t my-node-app . and run it with docker run -p 3000:3000 my-node-app.