Rename internal repository actions to be internal

This is a follow-up to elastic#36086. It renames the internal repository
actions to be prefixed by "internal". This allows the system user to
execute the actions.

Additionally, this PR stops casting Client to NodeClient. The client we
have is a NodeClient so executing the actions will be local.

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/Ccr.java

@@ -10,7 +10,6 @@
 import org.elasticsearch.action.ActionRequest;
 import org.elasticsearch.action.ActionResponse;
 import org.elasticsearch.client.Client;
-import org.elasticsearch.client.node.NodeClient;
 import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
 import org.elasticsearch.cluster.node.DiscoveryNodes;
 import org.elasticsearch.cluster.service.ClusterService;
@@ -151,7 +150,7 @@ public Collection<Object> createComponents(
             return emptyList();
         }
 
-        this.repositoryManager.set(new CcrRepositoryManager(settings, clusterService, (NodeClient) client));
+        this.repositoryManager.set(new CcrRepositoryManager(settings, clusterService, client));
 
         return Arrays.asList(
             ccrLicenseChecker,

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/CcrRepositoryManager.java

@@ -8,7 +8,7 @@
 
 import org.elasticsearch.action.ActionRequest;
 import org.elasticsearch.action.support.PlainActionFuture;
-import org.elasticsearch.client.node.NodeClient;
+import org.elasticsearch.client.Client;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.transport.RemoteClusterAware;
@@ -22,9 +22,9 @@
 
 class CcrRepositoryManager extends RemoteClusterAware {
 
-    private final NodeClient client;
+    private final Client client;
 
-    CcrRepositoryManager(Settings settings, ClusterService clusterService, NodeClient client) {
+    CcrRepositoryManager(Settings settings, ClusterService clusterService, Client client) {
         super(settings);
         this.client = client;
         listenForUpdates(clusterService.getClusterSettings());
@@ -36,12 +36,12 @@ protected void updateRemoteCluster(String clusterAlias, List<String> addresses,
         if (addresses.isEmpty()) {
             DeleteInternalCcrRepositoryRequest request = new DeleteInternalCcrRepositoryRequest(repositoryName);
             PlainActionFuture<DeleteInternalCcrRepositoryAction.DeleteInternalCcrRepositoryResponse> f = PlainActionFuture.newFuture();
-            client.executeLocally(DeleteInternalCcrRepositoryAction.INSTANCE, request, f);
+            client.execute(DeleteInternalCcrRepositoryAction.INSTANCE, request, f);
             assert f.isDone() : "Should be completed as it is executed synchronously";
         } else {
             ActionRequest request = new PutInternalCcrRepositoryRequest(repositoryName, CcrRepository.TYPE);
             PlainActionFuture<PutInternalCcrRepositoryAction.PutInternalCcrRepositoryResponse> f = PlainActionFuture.newFuture();
-            client.executeLocally(PutInternalCcrRepositoryAction.INSTANCE, request, f);
+            client.execute(PutInternalCcrRepositoryAction.INSTANCE, request, f);
             assert f.isDone() : "Should be completed as it is executed synchronously";
         }
     }

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/action/repositories/DeleteInternalCcrRepositoryAction.java

@@ -23,7 +23,7 @@
 public class DeleteInternalCcrRepositoryAction extends Action<DeleteInternalCcrRepositoryAction.DeleteInternalCcrRepositoryResponse> {
 
     public static final DeleteInternalCcrRepositoryAction INSTANCE = new DeleteInternalCcrRepositoryAction();
-    public static final String NAME = "cluster:admin/ccr/internal_repository/delete";
+    public static final String NAME = "internal:admin/ccr/internal_repository/delete";
 
     private DeleteInternalCcrRepositoryAction() {
         super(NAME);

x-pack/plugin/ccr/src/main/java/org/elasticsearch/xpack/ccr/action/repositories/PutInternalCcrRepositoryAction.java

@@ -23,7 +23,7 @@
 public class PutInternalCcrRepositoryAction extends Action<PutInternalCcrRepositoryAction.PutInternalCcrRepositoryResponse> {
 
     public static final PutInternalCcrRepositoryAction INSTANCE = new PutInternalCcrRepositoryAction();
-    public static final String NAME = "cluster:admin/ccr/internal_repository/put";
+    public static final String NAME = "internal:admin/ccr/internal_repository/put";
 
     private PutInternalCcrRepositoryAction() {
         super(NAME);