While following the k8s with istio example here, the cmd
kubectl get ingress bookinfo gave me empty address.
I thought k8s needs at least one ingress controller installed so the ingress resource can take effect, but I cannot find such instruction of ingress controller within the docs of Learn Microservices using Kubernetes and Istio (I thought this might appears in Setup a Kubernetes Cluster).
Am I missing any chapter or section? If not, is there any ingress controller recommended for this tutorial?