Este link contiene los archivos eks-lb-controller.yaml y eks-ingress.yaml utilizados en este ejemplo
kubectl apply \
--validate=false \
-f https://github.com/jetstack/cert-manager/releases/download/v1.1.1/cert-manager.yaml
kubectl apply -f eks-lb-controller.yaml
kubectl get deployment -n kube-system aws-load-balancer-controller
kubectl apply -f eks-ingress.yaml
kubectl get ingress -n app-ns
kubectl delete -f eks-ingress.yaml
kubectl delete -f https://github.com/jetstack/cert-manager/releases/download/v1.1.1/cert-manager.yaml
kubectl delete -f eks-lb-controller.yaml