Hello,
I was finally able to put my bare-metal server online for our association.
I analyze the way it is built and I try to understand how to administer it well (update of the Ubuntu base, Nextcloud and its applications, and docker images which are part of it).
I twice lost the link between Nextcloud and Collabora (.odt files would no longer open, with a connection error message, but why ?), but reinstalling Collabora fixed the problem.
Until this morning, when the ārichdocumentsā application went to 3.6.0, and the reinstallation of Collabora could not do anything.
After searching on this forum, I found the solution here
Adding the two lines indicated by āhelgeā and relaunching Apache fixes the problem.
But I realized that, despite the fact that I did an Nextcloud update (at least I thought so) with the script:
sudo bash /var/scripts/update.sh,
I didnāt see any changes in this scripts directory, in particular, the menu.sh script is not present, although it seems to be part of the scripts copied during the global installation.
Also, the versions of the scripts on my machine and on the master branch of git are not the same.
Is it possible to update the script directory to stay at the git level, and is there a script to do it?
Would relaunching a full installation do this job without breaking existing configuration items?
PS: I am an old retired IBM AIX sysadmin 
and Iām not very comfortable with docker 