Does anyone know if there is documentation showing the maximum number of worker nodes RKE2 can maintain?

that’s sort of a “how long is a piece of string” question. It should scale up just as well as vanilla upstream Kubernetes, given appropriate hardware.

Thanks. That's the answer I gave to my customer, but he's still hoping for a number. I'll see if there's anything quoted for upstream K8s and see how he feels about it. Thanks for the response!

Yeah, it’s highly variable depending on a lot of factors. How many pods there are, how often they turn over, whether the workload makes heavy use of the Kubernetes datastore or mostly just does its own thing, etc.

As per https://kubernetes.io/docs/setup/best-practices/cluster-large/ Kubernetes v1.24 supports up to 5000 nodes.

That's awesome. Thank you for this. I had, in all honesty, forgotten to go searching for this info. Hugely appreciated!