FROM node:12-slim # Create app directory WORKDIR /usr/src/app # Install app dependencies # A wildcard is used to ensure both package.json AND package-lock.json are copied # where available (npm@5+) COPY package*.json ./ # ENV NODE_ENV=production # If you are building your code for production # RUN npm ci --only=production ENV NODE_ENV=production RUN npm install # Bundle app source COPY . . EXPOSE 80 CMD [ "node", "app.js" ]