* feat(k8s/resource-pool): set ingress hostname as mandatory and remove default backend * refactor(k8s/resource-pool): use constants * feat(k8s/configure): add experimental note about traefik
* feat(k8s/resource-pool): set ingress hostname as mandatory and remove default backend * refactor(k8s/resource-pool): use constants * feat(k8s/configure): add experimental note about traefik