Dockerfile

FROM node:10.15.3-alpine as build
WORKDIR /usr/src/app
ENV PATH /usr/src/app/node_modules/.bin:$PATH
COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build

# production environment
FROM nginx:1.16.0-alpine
COPY --from=build /usr/src/app/build /usr/share/nginx/html
EXPOSE 3000
CMD ["nginx", "-g", "daemon off;"]