Docker react js

//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"]

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