portMap[sPort.Port][protocol] = append(portMap[sPort.Port][protocol], swn.Name)
		}
	}

	return portMap
}

// serviceTargetPortsMap build a map of targetPort and ports for each Service. e.g. m["80"][80] -> svc
func serviceTargetPortsMap(svcs []ServiceSpecWithName) targetPortMap {
	pm := targetPortMap{}
	for _, swn := range svcs {
		svc := swn.Spec
		for _, sPort := range svc.Ports {