Dockerfile

# Use Python 3.10 slim image for smaller size
FROM python:3.10-slim

# Set working directory
WORKDIR /app

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

# Copy requirements first for better layer caching
COPY requirements.txt .

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

# Download NLTK data
RUN python -c "import nltk; nltk.download('stopwords'); nltk.download('wordnet'); nltk.download('omw-1.4')"

# Copy application files
COPY app.py .
COPY templates/ templates/
COPY models/ models/

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

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PORT=7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

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