Hide Llama service from configuration API to enhance security and reduce exposure

Author: Jan-Kazlouski-elastic

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/llama/LlamaService.java

@@ -371,6 +371,12 @@ public TransportVersion getMinimalSupportedVersion() {
         return TransportVersions.ML_INFERENCE_LLAMA_ADDED;
     }
 
+    @Override
+    public boolean hideFromConfigurationApi() {
+        // The Llama service is very configurable so we're going to hide it from being exposed in the service API.
+        return true;
+    }
+
     /**
      * Configuration class for the Llama inference service.
      * It provides the settings and configurations required for the service.