FROM node:18-alpine

WORKDIR /app
COPY . .

# Cloud Run expects something listening on $PORT (8080)
ENV PORT=8080

# If you have a frontend build step, you can add it here later.
# For now, serve the repo root (or a /frontend build output) as static content.
RUN npm i -g serve

CMD ["sh", "-c", "serve -l $PORT ."]