[BREAKING CHANGE] updated default version to Bareos 21

[hugendudel]

Pull Request (PR) description

updated default version to Bareos 21

This Pull Request (PR) fixes the following issues

Fixes #80

[jhoblitt]

@hugendudel thank you for the contribution. The gha status seems to be stuck and I'm not a repo admin to override it. I've rebased this branch on the current master as #115 and merged it.

[jhoblitt]

@hugendudel Are you using this mod to manage baseos 21? It looks like [without] the removal of the bareos-database-mysql package would cause it to fail.

[hugendudel]

We use it with PostgreSQL, I will have a look at this issue tomorrow(UTC+1).

[hugendudel]

Ok, MySQL seems to be no longer supported. This information should be published somehow.
https://www.bareos.com/end-of-life-mysql/
And of course also remove the legacy.

[hugendudel]

MR is probably needed here, should we open an issue?

[jhoblitt]

@hugendudel I've put a kludge on the acceptance branch to remove the sqlite3/mysql packages. E.g. 68ddca3

However, as a real "fix" I would like to delete the db_driver class parameter completely as the docs say this config file value is deprecated as well. I would prefer not to have to support sqlite3/mysql for baseos < 21. The question is is anyone is using this modules with sqlite3/mysql and bareos 19.2 or 20?

[hugendudel]

There's always someone using it, isn't it? But imho, one should read the release notes before updating?

[hugendudel]

Ok a suggestion, I'm not sure if a new version has been released since the change. But we could now build a release indicating this, and reset the default value for now?

[jhoblitt]

I had planned to make a 2.0.0 release of this mod (#121) but that was before I was aware of the baseos 21 compatibility issues. We really need to get #109 sorted out. I've opened #125 as a live issue for this discussion. Can we shift this thread to the new issue?

[hugendudel]

Can we shift this thread to the new issue?
please! and feel free to revert the change if needed!