Auto devops kubernetes integration with base domain - rails template page not loading


i’m just exploring the auto devops feature using the rails template. the build and deploy went fine to my k8s gcp but when i hit the open live environment url * page didn’t load.

do i really have to specify the base domain with wildcard dns? or i can leave it blank in the k8s cluster gitlab page i.e. “Operations → Kubernetes → Project Cluster → Details → Base domain”

thanks in advance