Dockerfile

# ---- Frontend build ----
FROM node:20-alpine AS frontend
WORKDIR /ui
COPY frontend/package.json frontend/package-lock.json* ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# ---- Backend runtime ----
FROM python:3.12-slim AS runtime
ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    DATA_DIR=/data \
    HOST=0.0.0.0 \
    PORT=8080

WORKDIR /app

RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    && rm -rf /var/lib/apt/lists/*

COPY backend/requirements.txt ./requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

COPY backend/app ./app
COPY --from=frontend /ui/dist ./app/static

RUN mkdir -p /data

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
  CMD curl -fsS http://127.0.0.1:8080/api/health || exit 1

CMD ["sh", "-c", "uvicorn app.main:app --host ${HOST} --port ${PORT} --timeout-keep-alive 75"]