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
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
WORKDIR /app
COPY --from=build /app/build ./build
RUN chown -R appuser:appgroup /app
USER appuser
EXPOSE 3001
CMD ["serve", "-s", "build", "-l", "3001"]