You want to use Amazon EKS. You tried to run an "aws eks" command but got an error about the root user not being allowed to perform the operation. How do you create an IAM user account in AWS to run AWS CLI commands for EKS and log into the AWS web UI and view EKS clusters?
This assumes you have a group that has the correct policies to enable EKS manipulation. If you do not know how to do this, see the posting: How do you create a group for AWS users that can manage a Kubernetes cluster running in AWS?
Follow How Do You Create an IAM User Account in AWS to Run AWS CLI Commands and Log into the AWS Web UI? With step #10, choose the group for EKS.