X Virtual Framebuffer (Xvfb) Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol. If there is no display, say in a Docker container, running the programs that use those libraries will fail. Once in the container, I can start xvfb in this way: Xvfb :1 -screen 0 1024x768x24 +extension GLX +render -noreset > xsession.log 2>&1 & However, I would like this command to be performed in the Dockerfile, and then entering the container. In fact, some libraries, such as Matplotlib (without using agg backend) and TikZ requires to be hosted on X server.
If it can be switched to use :0, that would be cool as I'm interested in only connecting to the app and don't really need any window manager / desktop environment. I have a docker container that uses as an entrypoint /bin/bash. Executing the script via CMD allows the proper sequence of commands to run. Is this run through a vnc too? Can this be used to tunnel the Xvfb session? The DISPLAY variable in this case was set by the system to :10, while my app runs on :0. I solved this by writing a startup script which will: start xvfb start firefox. I tried the default Xorg connection in xrdp and it gave me access to a GUI shell. Are there any rdp only methods of connection to an X session, probably running on xvfb?
You can access the container’s display by pointing a VNC client to 127.0.0.1. I've heard that the rdp protocol is faster and more efficient than vnc, and hence chose xrdp, but later came to realise that xrdp itself just runs a vnc server (vnc4server I think?) on its own to port the session over. This will launch a new Docker container and run Xvfb, Fluxbox, and a VNC server. However, before that I tried the x11vnc-novnc combo and it's speed wasn't just satisfactory. So far I've experimented on Xvfb-x11vnc-xrdp and this works fine.
from a Windows machine : so sharing the host X session over using xhost is not an option and I don't want to setup Xming for ssh) into the container running a headless GUI app. I'm trying to set up a container that will allow me to rdp (i.e.