Dockerfile

# Minimal Docker image for CMPE343 Competition
# Only allows basic data science packages: numpy, pandas, matplotlib, seaborn, scikit-learn
FROM python:3.11-slim

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

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

# Create non-root user for security
RUN groupadd -r competition && useradd -r -g competition competition

# Set working directory
WORKDIR /app

# Copy requirements files
COPY requirements.txt /app/
COPY team_requirements.txt /app/

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

# Copy application code
COPY . /app/

# Create directories for teams and state
RUN mkdir -p /app/anonymized_teams /app/state && \
    chown -R competition:competition /app

# Switch to non-root user
USER competition

# Expose port
EXPOSE 7860

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

# Default command
CMD ["python", "app.py"]