Dockerfile

# ── Build stage ────────────────────────────────────────────────────────────
FROM python:3.11-slim AS builder

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

WORKDIR /build
COPY requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt


# ── Runtime stage ───────────────────────────────────────────────────────────
FROM python:3.11-slim

# Runtime system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
        # OpenCV
        libgl1 \
        libglib2.0-0 \
        libsm6 \
        libxext6 \
        libxrender1 \
        libgomp1 \
        # pdf2image / poppler
        poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# Copy installed Python packages from builder
COPY --from=builder /install /usr/local

WORKDIR /app

# Pre-download EasyOCR models at build time
RUN python - <<'EOF'
import easyocr
reader = easyocr.Reader(["de", "en"], gpu=False, verbose=False)
print("EasyOCR models cached.")
EOF

# Application code
COPY app/ ./app/
COPY cli.py .

EXPOSE 8000

# Healthcheck
HEALTHCHECK --interval=30s --timeout=10s --start-period=60s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]