Dockerfile

# Use standard python image
FROM python:3.9-slim

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

# Create user with ID 1000
RUN useradd -m -u 1000 user

# Set working directory
WORKDIR /app

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

# Download model during build to avoid runtime permission errors
RUN pip install ultralytics && \
    python -c "from ultralytics import YOLO; YOLO('yolov8n.pt')"

# Copy app code and CHANGE OWNER to user
COPY --chown=user . .

# Switch to user
USER user
ENV PATH="/home/user/.local/bin:$PATH" \
    PORT=7860

# Expose port
EXPOSE 7860

# Run Flask
CMD ["python", "app.py"]