From 328f78da048175a39068e38a1009e6e2ff2ee31e Mon Sep 17 00:00:00 2001
From: Andreas Gkizas <andreas.gkizas@elastic.co>
Date: Tue, 9 Jan 2024 15:10:28 +0200
Subject: [PATCH] adding check for oldobjectreturn

---
 kubernetes/watcher.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kubernetes/watcher.go b/kubernetes/watcher.go
index 5ae6be82a..cd786a42a 100644
--- a/kubernetes/watcher.go
+++ b/kubernetes/watcher.go
@@ -231,7 +231,11 @@ func (w *watcher) enqueue(obj interface{}, state string) {
 
 // oldobjectreturn returns the old version of cache objects before change on update events
 func (w *watcher) oldobjectreturn(o interface{}) {
-	w.oldobject = o.(runtime.Object)
+	if old, ok := o.(runtime.Object); !ok {
+		utilruntime.HandleError(fmt.Errorf("expected object in cache  got %#v", o))
+	} else {
+		w.oldobject = old
+	}
 }
 
 // process gets the top of the work queue and processes the object that is received.