Dockerfile

# Use official Python runtime as base image
FROM python:3.12-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Install uv for fast Python package management
RUN pip install uv

# Copy dependency files
COPY pyproject.toml uv.lock ./

# Install dependencies only (not the local package)
RUN uv export --format requirements-txt --no-hashes > requirements.txt && \
    uv venv && \
    uv pip install -r requirements.txt

# Copy application code
COPY src/ ./src/
COPY web_server.py ./
COPY korean_mud_game.html ./
COPY assets/ ./assets/

# Create non-root user for security
RUN useradd --create-home --shell /bin/bash appuser && \
    chown -R appuser:appuser /app
USER appuser

# Expose port for HuggingFace Spaces
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/api/game/help || exit 1

# Set environment variables
ENV PYTHONPATH=/app
ENV PYTHONUNBUFFERED=1
ENV DOCKER_ENV=1

# Run the application
CMD ["uv", "run", "python", "web_server.py"]