Create ADR on CRD versioning

[soenkeliebau]

We do not currently version our CRDs in a proper fashion, but rather just yolo changes.

This is something that we urgently need to change and introduce proper versions for all our CRDs. However I believe that this requires us to provide conversion functions and controllers to run these functions, which makes this a somewhat larger issue than just updating the version in our CRDs.

This ticket is done when:

• An ADR was written and accepted that details what needs to be done and outlines the options
• An option was chosen
• Appropriate follow up tickets for the chosen option have been created

[nightkr]

Yes, we need this. No, this doesn't have anything whatsoever to do with how Helm deploys the CRDs. To quote the docs:

There is no support at this time for upgrading or deleting CRDs using Helm.

[soenkeliebau]

There is no support at this time for upgrading or deleting CRDs using Helm.

Fuck

[fhennig]

There is now an epic: stackabletech/issues#507

I'm closing this in favor of the epic (which also links to a different ADR ticket)