User: arn:aws:iam::890221204044:user/kk_labs_user_364258 is not authorized to perform: eks:CreateNodegroup on resource: arn:aws:eks:us-east-1:890221204044:cluster/eks because no identity-based policy allows the eks:CreateNodegroup action
The Playground doesn’t support adding a node group to an EKS cluster directly from the console. Please refer to the document link I shared above to set up the EKS cluster properly.