# ============================================================================
# Bootnode Dockerfile
# ============================================================================
# Lightweight service for peer discovery in PoA blockchain network

FROM python:3.12-slim

WORKDIR /app

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

# Copy bootnode requirements
COPY bootnode/requirements.txt .

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

# Copy bootnode service
COPY bootnode /app/bootnode

# Set working directory
WORKDIR /app/bootnode

# Expose port
EXPOSE 8546

# Health check
HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
    CMD curl -f http://localhost:8546/health || exit 1

# Start bootnode
CMD ["python", "bootnode.py"]