# ============================================================================
# Blockchain Worker Dockerfile
# ============================================================================
# Lightweight service for handling blockchain operations
# Delegates compute-intensive crypto operations from the main API

FROM python:3.12-slim

WORKDIR /app

# Copy requirements from backend
COPY backend/requirements.txt .

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

# Copy backend modules (for crypto imports)
COPY backend /app/backend

# Copy worker service
COPY blockchain-worker /app/blockchain-worker

# Set working directory
WORKDIR /app/blockchain-worker

# Health check
HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:8001/health')" || exit 1

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