func FindRailsAPI(cluster *arvados.Cluster) (*url.URL, bool, error) {
var best *url.URL
for target := range cluster.Services.RailsAPI.InternalURLs {
func FindRailsAPI(cluster *arvados.Cluster) (*url.URL, bool, error) {
var best *url.URL
for target := range cluster.Services.RailsAPI.InternalURLs {