# Use an official Node runtime as the base image FROM node:18 # Add environment variable ARG GAME_ENV=preprod ENV GAME_ENV=$GAME_ENV # Set the working directory in the container WORKDIR /usr/src/app # Copy package.json and package-lock.json COPY package*.json ./ # Install dependencies RUN npm install # Copy the rest of the application code COPY . . # Build the client-side application RUN npm run build-prod # Expose the port the app runs on EXPOSE 3000 # Define the command to run the app CMD ["npm", "run", "start:server"]