backend/Dockerfile

FROM python:3.10-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Copy ML requirements
COPY ml/requirements.txt /app/ml/requirements.txt
RUN pip install --no-cache-dir -r /app/ml/requirements.txt

# Copy backend requirements
COPY backend/requirements.txt /app/backend/requirements.txt
RUN pip install --no-cache-dir -r /app/backend/requirements.txt

# Copy application code
COPY ml/ /app/ml/
COPY backend/ /app/backend/

# Create directories
RUN mkdir -p /app/ml/models /app/ml/data/retraining

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD python -c "import requests; requests.get('http://localhost:8000/health')"

# Run application
CMD ["python", "backend/inference_service.py"]