//make a file called Docker
FROM node:latest
//sets a folder
RUN mkdir -p /app/src
//sets working directory
WORKDIR /app/src
//copy the package
COPY package.json .
//runs npm install
RUN npm install
COPY . .
//exposes port 3000
EXPOSE 3000
//runs the comand npm start
CMD ["npm", "start"]
npm install cors express mysql