FROM node:alpine

COPY build /app/build
COPY package.json /app/package.json

HEALTHCHECK --interval=30s --retries=3 --start-period=10s --timeout=1s \
    CMD wget -q --tries=1 --spider http://localhost:3000/ || exit 1

EXPOSE 3000

WORKDIR /app
ENTRYPOINT [ "node", "build" ]