content: FROM ubuntu
  
  RUN apt-get update \
      && DEBIAN_FRONTEND=noninteractive \
      apt-get install -y --no-install-recommends\
  # Some basic helpers \
          bash \
          sudo \
          git \
          ca-certificates \
          procps \
  \
  # X11 and XFCE \
      && DEBIAN_FRONTEND=noninteractive \
      apt-get install -y --no-install-recommends\
          xvfb xauth dbus-x11 xfce4 xfce4-terminal \
          x11-xserver-utils \
  \
  # VNC \
      && DEBIAN_FRONTEND=noninteractive \
      apt-get install -y --no-install-recommends\
          python3 python3-numpy \
          tigervnc-standalone-server tigervnc-common \
          openssl \
  \
  # NoVNC \
      && mkdir -p /opt/noVNC \
      && git clone --single-branch https://github.com/novnc/noVNC.git /opt/noVNC \
      && git clone --single-branch https://github.com/novnc/websockify.git /opt/noVNC/utils/websockify \
      && ln -s /opt/noVNC/vnc.html /opt/noVNC/index.html \
      && openssl req -batch -new -x509 -days 365 -nodes -out self.pem -keyout /opt/noVNC/utils/websockify/self.pem \
      \
  # Audio requirements \
      && DEBIAN_FRONTEND=noninteractive \
      apt-get install -y --no-install-recommends\
          pulseaudio \
          pavucontrol \
          ucspi-tcp \
          gstreamer1.0-plugins-good \
          gstreamer1.0-pulseaudio \
          gstreamer1.0-tools
  
  
  COPY pulse/ /etc/pulse
  COPY novnc /opt/noVNC/
  RUN sed -i "/import RFB/a \
          import '../webaudio.js'" \
      /opt/noVNC/app/ui.js
  
  # Base applications
  RUN apt-get update \
      && DEBIAN_FRONTEND=noninteractive \
      apt-get install -y --no-install-recommends\
          firefox neovim
  
  COPY entrypoint.sh /opt/noVNC/entrypoint.sh
  
  ENTRYPOINT ["/opt/noVNC/entrypoint.sh"]
  EXPOSE 8080
  