* @throws FileNotFoundException if the config is not found
*/
@VisibleForTesting
public PublishedConfiguration actionRegistryGetConfig(ActionRegistryArgs registryArgs)
throws YarnException, IOException {
ServiceInstanceData instance = lookupInstance(registryArgs);
RegistryRetriever retriever = new RegistryRetriever(instance);
boolean external = !registryArgs.internal;
PublishedConfigSet configurations =
retriever.getConfigurations(external);