Allow managed nodegroups for Rancher running on Amazon EKS.

[skanakal]

Setup

• Rancher version: 2.9.3
• Rancher UI Extensions:
• Browser type & version: Any

Describe the bug

Allow managed nodegroups for Rancher running on Amazon EKS.

To Reproduce

Follow https://ranchermanager.docs.rancher.com/getting-started/installation-and-upgrade/install-upgrade-on-a-kubernetes-cluster/rancher-on-amazon-eks

1. Create EKS cluster thru eksctl command eksctl create cluster --name <name> --region <region> --nodegroup-name <ng-name> --node-type t2.medium --nodes 3 --version=1.28
2. Install rancher on EKS cluster
3. Once Rancher running, open Rancher UI and Edit the local cluster config, and add the cloud creds
4. Try to update the label or annotation and Save.

Result

Expected Result

• It should work without errors and permit the use of managed node groups...
• The cluster's Displayname should be set to local; it appears correct in the spec, but not in the appliedSpec.

  Tue Nov 12 18:31:49 skanakala ☺ ❉ ~/Downloads eksctl get nodegroups -c eks-entsvcs-skanakal --region us-east-2 
  CLUSTER         NODEGROUP   STATUS  CREATED         MIN SIZE    MAX SIZE    DESIRED CAPACITY    INSTANCE TYPE   IMAGE ID    ASG NAME                        TYPE
  eks-entsvcs-skanakal    skanakal-ng-1   ACTIVE  2024-11-12T09:41:45Z    3       3       3           t2.medium   AL2_x86_64  eks-skanakal-ng-1-04c98fe0-0e76-9789-c521-c3fb8e55a90a  managed
  Tue Nov 12 18:32:06 skanakala ☺ ❉ ~/Downloads 

Screenshots

Additional context

[rak-phillip]

Related to #12339

[richard-cox]

Before the port of hosted providers did we allow Rancher to manage the cluster itself was on?

[skanakal]

Before the port of hosted providers did we allow Rancher to manage the cluster itself was on?

No, this isn’t allowed, at least on Amazon EKS (as highlighted below). This change has been observed in versions 2.9 and above.

The error stating "cluster must have at least one node group" should be cleared if we avoid enabling managed node groups for the local cluster.