Output dropped Creation/Update/Delete events when failed to sync Kong configuration by go-database-reconciler

[randmonkey]

Is there an existing issue for this?

• I have searched the existing issues

Does this enhancement require public documentation?

• I have added an Acceptance Criteria item for adding and/or adjusting public documentation (if applicable)

Problem Statement

In cases when error happens on syncing Kong configuration by GDR (For example, uploading configuration to KIC in Konnect CP), some events are dropped and not applied after error happen. To reduce the confusion, we should output the dropped events after bumping GDR version to include Kong/go-database-reconciler#362.

Proposed Solution

Collect dropped events from GDR and output them in either way (or both):

• Add k8s events to related objects
• Output them in logs

Additional information

The change should be released in patch of KIC 3.5 and KIC 3.4 LTS.

Acceptance Criteria

• Users can knowt the events are dropped in syncing by either:
  • Events attached to related k8s resource
  • KIC logs