# Use an official Node.js runtime as the base image FROM node:14 # Set the working directory in the container WORKDIR /usr/src/app # Copy package.json and package-lock.json to the working directory COPY package*.json ./ # Install the application dependencies RUN npm install # Copy the rest of the application code to the working directory COPY . . # Expose the port that the app runs on EXPOSE 3000 # Define the command to run the application CMD ["node", "server.js"]