[8.x] Propagate root subobjects setting to downsample indexes (#115358) (#115577)

* Propagate root subobjects setting to downsample indexes (#115358)

* Propagate root subobjects setting to downsample indexes

* exclude tests from rest compat

* remove subobjects propagation

(cherry picked from commit 5c1a3ad)

* Update build.gradle

Author: kkrik-es

x-pack/plugin/downsample/qa/rest/src/yamlRestTest/java/org/elasticsearch/xpack/downsample/DownsampleWithBasicRestIT.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+package org.elasticsearch.xpack.downsample;
+
+import com.carrotsearch.randomizedtesting.annotations.ParametersFactory;
+
+import org.elasticsearch.test.cluster.ElasticsearchCluster;
+import org.elasticsearch.test.cluster.local.distribution.DistributionType;
+import org.elasticsearch.test.rest.yaml.ClientYamlTestCandidate;
+import org.elasticsearch.test.rest.yaml.ESClientYamlSuiteTestCase;
+import org.junit.ClassRule;
+
+public class DownsampleWithBasicRestIT extends ESClientYamlSuiteTestCase {
+
+    @ClassRule
+    public static ElasticsearchCluster cluster = ElasticsearchCluster.local()
+        .distribution(DistributionType.DEFAULT)
+        .setting("xpack.security.enabled", "false")
+        .build();
+
+    @Override
+    protected String getTestRestCluster() {
+        return cluster.getHttpAddresses();
+    }
+
+    public DownsampleWithBasicRestIT(final ClientYamlTestCandidate testCandidate) {
+        super(testCandidate);
+    }
+
+    @ParametersFactory
+    public static Iterable<Object[]> parameters() throws Exception {
+        return ESClientYamlSuiteTestCase.createParameters();
+    }
+
+}