example Dockerfiles for React App

Dockerfile-React

FROM node:8

WORKDIR /app
COPY . ./
RUN yarn
RUN yarn run build

RUN yarn global add serve
CMD ["serve", "-p", "3000", "-s", "/app/build"]

### Another Possibility

FROM mhart/alpine-node:11 AS builder
WORKDIR /app
COPY . .
RUN yarn run build

FROM mhart/alpine-node
RUN yarn global add serve
WORKDIR /app
COPY --from=builder /app/build .
CMD ["serve", "-p", "80", "-s", "."]