handle external recreations during deletions better #236
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Previously there was a rare race condition while deleting objects (either during component delete or component apply):
The old logic was:
ScheduledForDeletionduring apply or if the whole component is being deleted); if successful (that is API server responds with 2xx) then the inventory status of the dependent object is set toDeleting.Now, if the object was recreated by someone right between 1. and 2. then the reconciler went stuck.
Note that really does not happen usually (also because the critical period is very, very short).
To overcome, we are now checking the deletion timestamp of the dependent object (if still or again existing). If it has none, then we check the owner; if it is not us, then we give the object up (because apparently, someone else has just recreated it).