Dockerfile

FROM python:3.11-slim

WORKDIR /app

# Copy requirements first for better caching
COPY backend/requirements.txt /app/requirements.txt

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

# Copy backend application
COPY backend/ /app/backend/

# Create logs directory
RUN mkdir -p /app/logs

# Create non-root user for security
RUN adduser --disabled-password --gecos '' appuser && \
    chown -R appuser:appuser /app
USER appuser

# Expose port (Railway uses PORT env var)
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=15s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/v1/health')" || exit 1

# Run via uvicorn directly for production
CMD ["python", "backend/main.py"]