Dockerfile

# Build stage
FROM python:3.12-slim as builder

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    g++ \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Create and activate virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Install Python dependencies
COPY pyproject.toml setup.cfg ./
COPY requirements.txt requirements-test.txt ./
RUN pip install --no-cache-dir -r requirements.txt -r requirements-test.txt

# Download spaCy model
RUN python -m spacy download en_core_web_sm

# Runtime stage
FROM python:3.12-slim

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

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Set working directory
WORKDIR /app

# Copy application code
COPY . .

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app \
    STREAMLIT_SERVER_PORT=8501 \
    STREAMLIT_SERVER_ADDRESS=0.0.0.0 \
    UVICORN_HOST=0.0.0.0 \
    UVICORN_PORT=8000

# Expose ports
EXPOSE 8501 8000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:8501/_stcore/health')" || exit 1

# Start command
CMD ["/bin/sh", "-c", "streamlit run app/main.py --server.port=$STREAMLIT_SERVER_PORT --server.address=$STREAMLIT_SERVER_ADDRESS & uvicorn app.api:app --host $UVICORN_HOST --port $UVICORN_PORT & wait"]