dr := prevCfg.Spec.(*networking.DestinationRule)
		services = append(services, proxy.SidecarScope.ServicesForHostname(host.Name(dr.Host))...)
	} else {
		dr := cfg.Spec.(*networking.DestinationRule)
		// Destinationrule was updated. Find matching services from updated destinationrule.
		services = append(services, proxy.SidecarScope.ServicesForHostname(host.Name(dr.Host))...)

	}
	return sc.destinationRulesByNames[types.NamespacedName{
		Name:      name,
		Namespace: namespace,
	}]
}

// ServicesForHostname returns a list of services that fall under the hostname provided. This hostname
// can be a wildcard.
func (sc *SidecarScope) ServicesForHostname(hostname host.Name) []*Service {
	if !hostname.IsWildCarded() {
		if svc, f := sc.servicesByHostname[hostname]; f {
			return []*Service{svc}