Added flags for gracious backup without locking tables, previously resulting in DOWN HAproxy backend during backup time

Addressing several issues, now connection to db works from the kimai2 server and things get installed, almost there

The branch is ready to be merged (imho)

See merge request !1

Many changes and the addition of the final touch with the settings of the LoginOIDC plugin directly in the database. Now I need to test it all with a fresh new mariadb server tomorrow.

Several changes to apply the settings correctly to mariadb. There was an issue with a handler and the matomo user's host had to be set to '%' to get access from a remote server.

Added the SSO bug fixing part for maria_db with different checks and error handling in ansible. With that, the mariadb side of things should be ready for matomo migration and SSO integration.

Reworking the Matomo migration in Ansible with the latest version of ansible-private and also un-delegating the creation of mariadb

Yes! A small change for listening to all ipv6 made it work, now able to connect from the remote matomo server.

Various changes, mostly to generate a new template-based config.ini.php file for matomo and nginx changes, removed borg backup for the new servers