ImageBuilder-Keyboard

Hello,

First of all, excuse me for posting this question here if it is not in the right place.

I am currently using ImageBuilder (osbuild-composer) on my RHEL9.1 to create other RHEL9.1 iso images with 'Server with GUI' group through command line. As I am french, I want my images to be in french, so I write those lines in my blueprints :

name = "server"
description = "server gui"
version = "0.0.1"
modules = []
distro = ""

[[groups]]
name = "Serveur avec GUI"

[customizations]

[customizations.locale]
languages = ["fr_FR.UTF-8"]
keyboard = "fr"
xlayouts = "n/a"

[customizations.timezone]
timezone = "Europe/Paris"

In my created image, I can see that the full system is in french and the timezone is fine. When I go on my ttys, the keyboard is effectively in french. However, my keyboard on the GUI is in english version (qwerty), instead of french version (azerty).

I tried to display the configuration with localectl status and it show this :

$ localectl
System Local: LANG=fr_FR.UTF-8
VC Keymap: fr
X Layout: fr

How can I set my GUI keyboard in french in my blueprint file? What is the appropriate line to write in the blueprints, as it is certainly not 'xlayouts = "fr"? x11-layouts= "fr" ?

Thanks for you help !