CheckEndpointReady checks that the kubernetes endpoint is ready Credits: https://github.com/kubernetes/minikube/blob/v0.9.0/cmd/minikube/cmd/service.go#L101.

CheckService waits for the specified service to be ready by returning an error until the service is up The check is done by polling the endpoint associated with the service and when the endpoint exists, returning no error->service-online Credits: https://github.com/kubernetes/minikube/blob/v0.9.0/cmd/minikube/cmd/service.go#L89.