Event metadata for node reboot events is wrong #134503
Description
What happened?
A node reboot event looks like this:
$ k get event kind-control-plane.186cd0d5e2253993 -oyaml
apiVersion: v1
count: 1
eventTime: null
firstTimestamp: "2025-10-09T11:59:31Z"
involvedObject:
kind: Node
name: kind-control-plane
uid: kind-control-plane
kind: Event
lastTimestamp: "2025-10-09T11:59:31Z"
message: 'Node kind-control-plane has been rebooted, boot id: fda92249-bc38-49ea-b0c7-e664b214e43e'
metadata:
creationTimestamp: "2025-10-09T11:59:34Z"
name: kind-control-plane.186cd0d5e2253993
namespace: default
resourceVersion: "28264"
uid: 7be02699-db88-4886-ae5c-f47be0b0c30c
reason: Rebooted
reportingComponent: kubelet
reportingInstance: kind-control-plane
source:
component: kubelet
host: kind-control-plane
type: Warning
This is missing involvedObject.apiVersion and has the uid set to the name of the node rather than the uid.
This seems to be caused by using a nodeRef in the recorder as opposed to an actual node object:
kubernetes/pkg/kubelet/kubelet_node_status.go
Line 646 in 3a53784
/sig node
What did you expect to happen?
Correctly set involvedObject.apiVersion and uid fields
How can we reproduce it (as minimally and precisely as possible)?
Reboot a node
Anything else we need to know?
No response
Kubernetes version
1.34
```console
$ kubectl version
# paste output here
```
Cloud provider
any
OS version
# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here
# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here