EKS cluster declares a single node group

What it checks

EKS cluster: at most one managed node group is declared for this cluster.

Where it applies

Terraform: aws_eks_cluster

CloudFormation: AWS::EKS::Cluster

How to fix it

1. Split into at least: a `system` pool (kube-system, ingress, observability) and an `apps` pool. Add a `spot` pool for non-critical workloads if cost matters.

Frameworks

• AWS Well-Architected REL.7

These mappings are advisory, not an attestation of compliance.

Vendor documentation

All rules