FROM node:18-alpine AS build

WORKDIR /app
COPY package.json ./
RUN npm install
COPY . .
ARG REACT_APP_API_URL=http://localhost:8000
ENV REACT_APP_API_URL=$REACT_APP_API_URL
RUN npm run build

FROM node:18-alpine
RUN npm install -g serve
WORKDIR /app
COPY --from=build /app/build ./build
EXPOSE 3000
CMD ["serve", "-s", "build", "-l", "3000"]