I have a GUI-less server (fresh Debian without any desktop environment or Ubuntu server, without X server, a priori). I consider to install docker and pull an official Ubuntu based container and add a desktop environment on it in order to use regular GUI apps.
I have a second computer in the LAN with a regular Debian Xfce or Xubuntu.
Is it possible to use this second computer to open the desktop session of the container (which is run on the GUI-less server) ? (I would like to use standard Debian or Ubuntu packages as much as possible and avoid to use external PPA packages)
Small state of the art :
I have seen the NoMachine solution : Build and Deploy NoMachine Desktops and Applications in Docker for Linux https://www.nomachine.com/DT10O00161
I have also seen the Consol docker images like : consol/ubuntu-xfce-vnc https://hub.docker.com/r/consol/ubuntu-xfce-vnc/
I also have seen a solution using Xvfb and x11vnc (sorry it is a french webpage but I expect the translation to be ok with regular onlie tools) : Utiliser VNC comme interface graphique avec un conteneur docker https://www.geeketfier.fr/post/docker-display-on-windows/
I found this docker image which solves my question : docker-x2go-xubuntu : https://hub.docker.com/r/paimpozhil/docker-x2go-xubuntu
I built it on the GUI-less server and ran it as explained on docker hub.
On my second computer I opened an ssh tunnel to the GUIless server pointing to the docker interface :
ssh -CY -L 33333:container.docker.ip:2222 -l guilessuserlogin guiless.server.ip
(I retrieved the container IP by ifconfig on the GUIless server)
On this second computer I installed x2goclient from the regular repositories and configured a session to connect to localhost:33333
Once connected, the GUI desktop of the docker machine is completely available.