Allow to attach dynamic tags to snapshots

[tobikris]

Summary

As a "app operator"
I want "to attach dynamic tags to my snapshots"
So that "I can store information like the app version".

Context

I would like to be able to tag snapshots with information like the current app version. This allows to ensure the restore process can be done easily and with the correct version.

Out of Scope

• Fetching the app version - this is the responsibility of the operator/user.

Further links

No response

Acceptance Criteria

No response

Implementation Ideas

My current idea would be to add this functionality similarly to the backupcommand configuration (e.g. tagcommand).

The command can be specified by the user and its stdout is parsed and attached as tags.