Dockerfile

# Use Ubuntu 22.04 for compatibility with pygobject and toga
FROM ubuntu:22.04

# Set environment variables
ENV DEBIAN_FRONTEND=noninteractive
ENV DISPLAY=:99
ENV PATH="/home/user/.local/bin:$PATH"

# Install system dependencies as root
RUN apt-get update && apt-get install -y \
    python3 \
    python3-dev \
    python3-pip \
    python3-venv \
    libgirepository1.0-dev \
    libcairo2-dev \
    pkg-config \
    meson \
    ninja-build \
    libgtk-3-dev \
    xvfb \
    x11vnc \
    novnc \
    websockify \
    nginx \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user for Hugging Face Spaces
RUN useradd -m -u 1000 user
USER user
WORKDIR /app

# Copy application files
COPY --chown=user . /app

# Create and activate a virtual environment
RUN python3 -m venv /venv
ENV PATH="/venv/bin:$PATH"

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    pip install flask pygobject toga

# Copy Nginx configuration
COPY --chown=user nginx.conf /etc/nginx/nginx.conf

# Expose port 7860 for Hugging Face Spaces
EXPOSE 7860

# Start Xvfb, x11vnc, noVNC, Nginx, and Flask app
CMD Xvfb :99 -screen 0 1024x768x16 & \
    x11vnc -display :99 -forever -nopw & \
    websockify --web /usr/share/novnc 6080 localhost:5900 & \
    nginx & \
    python3 app.py