// Verify that the cluster is marked ready.
func isReady(clusterName string, clientset *federation_release_1_5.Clientset) error {
	return wait.PollImmediate(time.Second, 5*time.Minute, func() (bool, error) {
		c, err := clientset.Federation().Clusters().Get(clusterName, metav1.GetOptions{})
		if err != nil {
			return false, err
		}
		for _, condition := range c.Status.Conditions {
			if condition.Type == federationapi.ClusterReady && condition.Status == v1.ConditionTrue {
				return true, nil
			}
		}
		return false, nil
	})
}