code: func NewConfigurer(recorder record.EventRecorder, nodeRef *v1.ObjectReference, nodeIP net.IP, clusterDNS []net.IP, clusterDomain, resolverConfig string) *Configurer {
  	return &Configurer{
  		recorder:       recorder,
  		nodeRef:        nodeRef,
  		nodeIP:         nodeIP,
  		clusterDNS:     clusterDNS,
  		ClusterDomain:  clusterDomain,
  		ResolverConfig: resolverConfig,
  	}
  }
docs: // NewConfigurer returns a DNS configurer for launching pods.