Dockerfile

FROM python:3.12-slim

# Create non-root user
RUN useradd -m appuser

WORKDIR /app

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

# Copy project files
COPY . .

# Change ownership to non-root user
RUN chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Expose only main app port
EXPOSE 7860

# Start all three apps
CMD ["gunicorn", "-b", "0.0.0.0:7860", "main:app"]