refer
https://rancher.com/docs/rancher/v2.x/en/installation/install-rancher-on-k8s/amazon-eks/
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm upgrade --install \
ingress-nginx ingress-nginx/ingress-nginx \
--namespace ingress-nginx \
--set controller.service.type=LoadBalancer \
--version 3.12.0 \
--create-namespace
kubectl get service ingress-nginx-controller --namespace=ingress-nginx