code: func NewClusterName(spec ClusterNameSpecV2) (ClusterName, error) {
  	cn := ClusterNameV2{
  		Kind:    KindClusterName,
  		Version: V2,
  		Metadata: Metadata{
  			Name:      MetaNameClusterName,
  			Namespace: defaults.Namespace,
  		},
  		Spec: spec,
  	}
  	if err := cn.CheckAndSetDefaults(); err != nil {
  		return nil, trace.Wrap(err)
  	}
  
  	return &cn, nil
  }
docs: // NewClusterName is a convenience wrapper to create a ClusterName resource.