Dockerfile

# Stage 1
FROM node:12 AS build

# Create app directory
WORKDIR /usr/src/app

ENV PATH /usr/src/app/node_modules/.bin:$PATH

# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./
COPY yarn.lock ./
RUN yarn install

COPY . .

# Build the app for production
RUN yarn build

# Stage 2
# Use Nginx to serve files
FROM nginx:1.18.0-alpine
WORKDIR /usr/src/app

COPY --from=build /usr/src/app/run.sh .
COPY --from=build /usr/src/app/build /usr/share/nginx/html
RUN rm /etc/nginx/conf.d/default.conf
COPY --from=build /usr/src/app/nginx.conf /etc/nginx/conf.d/nginx.conf
EXPOSE 80
ENTRYPOINT [ "./run.sh" ]