// allocateHost allocates a host name ONLY if the host name on the route is empty and an allocator
// is configured. It must first allocate the shard and may return an error if shard allocation
// fails.
func (s routeStrategy) allocateHost(route *api.Route) error {
if len(route.Spec.Host) == 0 && s.RouteAllocator != nil {
// TODO: this does not belong here, and should be removed
shard, err := s.RouteAllocator.AllocateRouterShard(route)
if err != nil {
return errors.NewInternalError(fmt.Errorf("allocation error: %v for route: %#v", err, route))
}
route.Spec.Host = s.RouteAllocator.GenerateHostname(route, shard)
if route.Annotations == nil {
route.Annotations = map[string]string{}
}
route.Annotations[HostGeneratedAnnotationKey] = "true"
}
return nil
}
