Follow the same commands as the Vietnamese page: (1) download the IAM policy and create it,
(2) eksctl create iamserviceaccount (IRSA, replace <account-id>), (3) install cert-manager and
wait, (4) helm upgrade --install aws-load-balancer-controller (replace <EKS-VPC-ID> obtained via
aws eks describe-cluster ... resourcesVpcConfig.vpcId), (5) verify with kubectl get pods and
kubectl logs.