How can I use Docker with my Express application?

How can I use Docker with my Express application?

You can use Docker to containerize your Express application, making it easier to deploy and manage. Would you like a step-by-step guide?

Yes, please provide the steps to create a Dockerfile for my Express app.

First, create a file named Dockerfile in your project root. Then, add the following content:

FROM node:14

WORKDIR /usr/src/app

COPY package*.json ./

RUN npm install

COPY . .

EXPOSE 3000

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

This sets up a Node.js environment and copies your app files.

What should I do next after creating the Dockerfile?

Next, build your Docker image using the command docker build -t my-express-app . and then run it with docker run -p 3000:3000 my-express-app.