Initially the secret password file was 755, it was not really an issue because the file was protected by the permission of the root folder in the home of the user, so not accessible to other users
However I would like something more private so I would like to switch to 400
in short
you have to test the first installation add-module ghcr.io/nethserver/mariadb:1.0.9-dev.2
and the upgrade
upgrade, install a mariadb module from the software center, configure it and upgrade to it api-cli run update-module --data '{"module_url":"ghcr.io/nethserver/mariadb:1.0.9-dev.2","instances":["mariadb1"],"force":true}'
after the installation/upgrade no issue expected, the module is up and workable or can be configured