[Edge] Orphan nodes not deleted by MCM

[himanshu-kun]

How to categorize this issue?

/area robustness /kind bug /priority 1

What happened:

There was a case where a node object stayed in the cluster, with no machine object or backing VM. Reason:

• node label didn't get updated during triggerCreationFlow
• machine was marked for deletion due to shoot deletion , so no retry for node label update was done

What you expected to happen:

Node should not stay dangling , as then its marked with annotation of not-managed-by-mcm, and shoot will report errors

How to reproduce it (as minimally and precisely as possible): Described above

Anything else we need to know?:

Environment:

• Kubernetes version (use kubectl version):
• Cloud provider or hardware configuration:
• Others:

[himanshu-kun]

/close