Merge pull request #32872 from vespa-engine/hmusum/log-warning-when-u…

…sing-admin-version-2.0-in-cloud

Log warning (shown in console) when using admin version 2.0 on cloud

config-model/src/main/java/com/yahoo/config/model/admin/AdminModel.java

@@ -20,7 +20,8 @@
 
 import java.util.Collection;
 import java.util.List;
-import java.util.logging.Level;
+
+import static java.util.logging.Level.WARNING;
 
 /**
  * Config model adaptor of the Admin class.
@@ -78,7 +79,10 @@ public BuilderV2() {
 
         @Override
         public void doBuild(AdminModel model, Element adminElement, ConfigModelContext modelContext) {
-            if (modelContext.getDeployState().isHosted()) { // admin v4 is used on hosted: Build a default V4 instead
+            // admin v4 is used on hosted: Build a default V4 instead
+            if (modelContext.getDeployState().isHosted()) {
+                modelContext.getDeployLogger().logApplicationPackage(WARNING, "<admin> version 2.0 is deprecated" +
+                        " and will be ignored, please use <admin> version 4.0 instead");
                 new BuilderV4().doBuild(model, adminElement, modelContext);
                 return;
             }
@@ -114,7 +118,7 @@ public void doBuild(AdminModel model, Element adminElement, ConfigModelContext m
             // TODO: Remove in Vespa 9
             if ("3.0".equals(adminElement.getAttribute("version")))
                 modelContext.getDeployState().getDeployLogger()
-                            .logApplicationPackage(Level.WARNING, "admin model version 3.0 is deprecated and support will removed in Vespa 9, " +
+                            .logApplicationPackage(WARNING, "admin model version 3.0 is deprecated and support will removed in Vespa 9, " +
                                     "please use version 4.0 or remove the element completely. See https://cloud.vespa.ai/en/reference/services#ignored-elements");
 
             TreeConfigProducer<AnyConfigProducer> parent = modelContext.getParentProducer();