FROM debian:bookworm-slim

ENV DEBIAN_FRONTEND=noninteractive \
    DISPLAY=:1 \
    VNC_RESOLUTION=1280x720

RUN apt-get update && apt-get install -y --no-install-recommends \
    tigervnc-standalone-server \
    fluxbox \
    chromium \
    novnc \
    websockify \
    python3 \
    net-tools \
    && apt-get clean && rm -rf /var/lib/apt/lists/*

RUN useradd -m -s /bin/bash user && mkdir -p /home/user /tmp/chrome && chown -R user:user /home/user /tmp

RUN ln -s /usr/share/novnc/vnc.html /usr/share/novnc/index.html

COPY start.sh /start.sh
RUN chmod +x /start.sh

USER user
WORKDIR /home/user

CMD ["/start.sh"]