# ============================================================================
# Validator Node Dockerfile
# ============================================================================
# PoA consensus validator for distributed blockchain voting

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 validator requirements
COPY validator/requirements.txt .

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

# Copy validator service
COPY validator /app/validator

# Set working directory
WORKDIR /app/validator

# Expose ports
EXPOSE 8001 30303

# Health check
HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
    CMD curl -f http://localhost:8001/health || exit 1

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