Node Termination/Removal Time

[twosdai]

What would you like to be added:
A timestamp which records when a Node was removed from the cluster.
Why is this needed:
So as to track the performance and history of the physical infrastructure supporting the cluster, for alerting and monitoring purposes. Additionally this would be useful for things like auditing.
Describe the solution you'd like
Metrics would be exposed similar to the kube_pod_deletion_timestamp for pods, just for nodes.
Additional context

I'm not totally sure this is even possible within Kubernetes or if more information would be needed. I just noticed that there is no termination metric inside the Nodes category in the docs: https://github.com/kubernetes/kube-state-metrics/blob/master/docs/node-metrics.md

Additionally I have a question open on stack overflow about this request/issue
https://stackoverflow.com/questions/74351702/prometheus-scrape-node-terminate-time

[twosdai]

If this isn't possible, or more information is needed please let me know, sorry if I have contributed to the noise!

[rexagod]

/assign
We have this for pods, it makes sense to have it for nodes as well.