Dockerfile

# Dockerfile
# Multi-stage build for production

# Build stage
FROM python:3.11-slim as builder

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    libpq-dev \
    tesseract-ocr \
    tesseract-ocr-eng \
    libtesseract-dev \
    poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --user -r requirements.txt

# Runtime stage
FROM python:3.11-slim

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    tesseract-ocr \
    tesseract-ocr-eng \
    libtesseract-dev \
    poppler-utils \
    && rm -rf /var/lib/apt/lists/*

# Create non-root user
RUN groupadd -r appuser && useradd -r -g appuser appuser

# Copy Python packages from builder
COPY --from=builder /root/.local /home/appuser/.local

# Copy application code
COPY --chown=appuser:appuser . .

# Create uploads directory
RUN mkdir -p /app/data/uploads && chown -R appuser:appuser /app/data

# Switch to non-root user
USER appuser

# Add local packages to PATH
ENV PATH=/home/appuser/.local/bin:$PATH

# Expose port
EXPOSE 8000

# Health check - use urllib (stdlib) instead of httpx
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health/live', timeout=5)"

# Run application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]