Dockerfile

# Dockerfile — must be in repo root (not in /server)
FROM python:3.11-slim

# Enable web interface for testing at /web
ENV ENABLE_WEB_INTERFACE=true
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

WORKDIR /app

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

# Copy requirements first for layer caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy all source files (includes pre-built database)
COPY . .

# Expose the server port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=30s --retries=3 \
    CMD python -c "import requests; requests.post('http://localhost:8000/reset', json={'task': 'easy'}, timeout=5)" || exit 1

# Start the FastAPI server
CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "8000"]