envoy::config::bootstrap::v3::LayeredRuntime& layered_runtime_config) {

  {

    auto* layer = layered_runtime_config.add_layers();

    layer->set_name("base");

    layer->mutable_static_layer()->MergeFrom(runtime_config.base());

  }

  if (!runtime_config.symlink_root().empty()) {

    {

      auto* layer = layered_runtime_config.add_layers();

      layer->set_name("root");

      layer->mutable_disk_layer()->set_symlink_root(runtime_config.symlink_root());

      layer->mutable_disk_layer()->set_subdirectory(runtime_config.subdirectory());

    }

    if (!runtime_config.override_subdirectory().empty()) {

      auto* layer = layered_runtime_config.add_layers();

      layer->set_name("override");

      layer->mutable_disk_layer()->set_symlink_root(runtime_config.symlink_root());

      layer->mutable_disk_layer()->set_subdirectory(runtime_config.override_subdirectory());

      layer->mutable_disk_layer()->set_append_service_cluster(true);

    }

  }

  {

    auto* layer = layered_runtime_config.add_layers();

    layer->set_name("admin");

    layer->mutable_admin_layer();

  }

}