```dockerfile
FROM python:3.10-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    ffmpeg \
    libgl1-mesa-glx \
    libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create cache directory
RUN mkdir -p /root/.cache/huggingface

# Expose port
EXPOSE 7860

# Health check
HEALTHCHECK CMD curl --fail http://localhost:7860 || exit 1

# Run the application
CMD ["python", "app.py"]
```