Improve Usability of Function CRD

[kwiatekus]

Description

Provide a stable version of Function CRD incorporating the sub-type division between the inline and git-sourced types

AC

• [ ] Clean up spec fields that are spread on the root level (i.e source related) - branch
• [ ] Clean up scaling related fields (and support scale subresource to make Function scalable by any scaler) - PR
• [ ] Include shortcut name for function
• [ ] Use stable crd version (non alpha or beta)
• [ ] Implement conversion webhooks so that old specs requested by non-migrated clients are supported - Issue
• [ ] Plan an issue for next serverless apiversion support in kyma CLI
• [x] Plan an issue for next serverless apiversion support in Kyma Dashboard
• [ ] Document CRD changes - issue

Reasons

• cleaning up API of the Function CRD

Attachments

serverless-architecture.drawio.zip

[kwiatekus]

We need to poc the following:

• getting rid of GitRepo CRD !!
• propose changes in Function CRD (eliminate git related pros ??)
• design GitFunction CRD
• decision whether we need a dedicated controller (or have a reconciliation branch in the function controller)

[m00g3n]

Check PR with proposed changes to Function CRD

[kwiatekus]

Currently blocked by missing conversion between versions https://github.com/kyma-project/kyma/issues/14593