Dockerfile

# Use Python 3.10 to match your training environment
FROM python:3.10-slim

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

# Set working directory
WORKDIR /app

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

# Copy requirements first (for better Docker layer caching)
COPY requirements.txt .

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

# Copy application code and model files
COPY . .

# Create non-root user for security
RUN adduser --disabled-password --gecos '' --shell /bin/bash user \
 && chown -R user:user /app
USER user

# Expose port 7860 (Hugging Face Spaces requirement)
EXPOSE 7860

# Health check (adjusted for port 7860)
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Start the application on port 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]