return proxy.SidecarScope.servicesByHostname[hostname]
	}

	// SidecarScope shouldn't be null here. If it is, we can't disambiguate the hostname to use for a namespace,
	// so the selection must be undefined.
	for _, service := range ps.ServiceIndex.HostnameAndNamespace[hostname] {
		return service
	}

	// No service found
	return nil
}