Dockerfile

# Use Python 3.11 slim image for better performance
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PORT=7860
ENV YOLO_CONFIG_DIR=/tmp/Ultralytics

# Create a non-root user for security
RUN useradd --create-home --shell /bin/bash app

# Install system dependencies including OpenCV requirements
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender1 \
    libgomp1 \
    libgthread-2.0-0 \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for better 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 the application code
COPY . .

# Create necessary directories with proper permissions
RUN mkdir -p models app/uploads /tmp/uploads /tmp/Ultralytics && \
    chown -R app:app /app /tmp/uploads /tmp/Ultralytics && \
    chmod -R 755 /app /tmp/uploads /tmp/Ultralytics

# Make startup script executable
RUN chmod +x start-hf.sh && chown app:app start-hf.sh

# Switch to non-root user
USER app

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

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

# Command to run the application
CMD ["./start-hf.sh"]