m.Port = uint32(port)
		}
		if len(r.Match) == 0 {
			r.Match = []*istio.L4MatchAttributes{{
				Port: uint32(port),
			}}
		}
		res = append(res, r)
	}
	return res
}

func augmentTLSPortMatch(routes []*istio.TLSRoute, port *k8s.PortNumber, parentHosts []string) []*istio.TLSRoute {
	res := make([]*istio.TLSRoute, 0, len(routes))
	for _, r := range routes {
		r = r.DeepCopy()