Dockerfile

# Base image
FROM python:3.10-slim

# Set environment variables
ENV HF_HOME=/tmp \
    XDG_CACHE_HOME=/tmp \
    PYTHONUNBUFFERED=1 \
    TOKENIZERS_PARALLELISM=false \
    TRANSFORMERS_CACHE=/tmp

# Install minimal system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    python3-dev \
    build-essential \
    libopenblas-dev \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Copy requirements
COPY requirements.txt .

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

# Copy application files
COPY app.py .

# Create upload directory
RUN mkdir -p /tmp/uploads && chmod 777 /tmp/uploads

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import requests; requests.get('http://localhost:7860/')" || exit 1

# Start application
CMD ["python", "app.py"]