Dockerfile for Create-React-App

FROM node:alpine
WORKDIR /app
COPY package.json ./
COPY package-lock.json ./
COPY ./ ./
RUN npm i
EXPOSE 3000
CMD ["npm", "run", "dev"]

FROM node:15-alpine AS builder

WORKDIR /app

COPY package.json package.json

RUN npm install

COPY . .

RUN npm run build

FROM nginx:alpine

WORKDIR /usr/share/nginx/html

RUN rm -rf *

COPY --from=builder /app/dist .

ENTRYPOINT ["nginx", "-g", "daemon off;"]