FROM python:3.13-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        gcc \
        libc6-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements file
COPY requirements.txt ./

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

# Copy project files
COPY . .

# Expose port
EXPOSE 8000

# Default command (can be overridden in docker-compose)
CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]