Dockerfile

FROM node:18-alpine AS frontend-builder
WORKDIR /frontend
COPY frontend/package.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build


FROM python:3.11-slim AS backend-builder
WORKDIR /app/backend



# Copy requirements first, then install build tools and dependencies
COPY backend/requirements.txt ./
RUN apt-get update && apt-get install -y --no-install-recommends \
    tesseract-ocr \
    poppler-utils \
    gcc \
    g++ \
    && pip install --no-cache-dir --upgrade pip \
    && pip install --no-cache-dir -r requirements.txt \
    && apt-get purge -y gcc g++ \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*
RUN python -m spacy download en_core_web_sm


FROM python:3.11-slim
WORKDIR /app


# Only install runtime system packages in final image
RUN apt-get update && apt-get install -y --no-install-recommends \
    tesseract-ocr \
    poppler-utils \
    && apt-get autoremove -y \
    && rm -rf /var/lib/apt/lists/*

COPY --from=backend-builder /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=backend-builder /usr/local/bin /usr/local/bin

COPY backend/ ./backend/

COPY --from=frontend-builder /frontend/dist ./frontend/dist

RUN mkdir -p ./backend/uploads

ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV MALLOC_TRIM_THRESHOLD_=100000

EXPOSE 7860

HEALTHCHECK --interval=30s --timeout=5s --start-period=60s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/health')" || exit 1

CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "4", "--limit-concurrency", "10", "--timeout-keep-alive", "30"]