add logging around pod_container_deletor DeleteContainer

Author: rphillips

pkg/kubelet/pod_container_deletor.go

@@ -48,7 +48,9 @@ func newPodContainerDeletor(runtime kubecontainer.Runtime, containersToKeep int)
 	go wait.Until(func() {
 		for {
 			id := <-buffer
-			runtime.DeleteContainer(id)
+			if err := runtime.DeleteContainer(id); err != nil {
+				klog.Warningf("[pod_container_deletor] DeleteContainer returned error for (id=%v): %v", id, err)
+			}
 		}
 	}, 0, wait.NeverStop)