Serverless filtering create from (#137850)

* add serverless filtering in _create_from transport action

* Moved serverless test to serverless repo

* Update docs/changelog/137850.yaml

Author: seanzatzdev

docs/changelog/137850.yaml

@@ -0,0 +1,5 @@
+pr: 137850
+summary: Serverless filtering create from
+area: Indices APIs
+type: bug
+issues: []

x-pack/plugin/migrate/src/main/java/org/elasticsearch/xpack/migrate/action/CreateIndexFromSourceTransportAction.java

@@ -16,6 +16,7 @@
 import org.elasticsearch.client.internal.Client;
 import org.elasticsearch.cluster.metadata.IndexMetadata;
 import org.elasticsearch.cluster.metadata.MappingMetadata;
+import org.elasticsearch.cluster.node.DiscoveryNode;
 import org.elasticsearch.cluster.project.ProjectResolver;
 import org.elasticsearch.cluster.service.ClusterService;
 import org.elasticsearch.common.compress.CompressedXContent;
@@ -158,6 +159,7 @@ private static Map<String, Object> mergeMappings(@Nullable MappingMetadata sourc
     private Settings filterSettings(IndexMetadata sourceIndex) {
         Settings sourceSettings = sourceIndex.getSettings();
         final Settings.Builder builder = Settings.builder();
+        final boolean isServerless = DiscoveryNode.isStateless(clusterService.getSettings());
         for (final String key : sourceSettings.keySet()) {
             final Setting<?> setting = indexScopedSettings.get(key);
             if (setting == null) {
@@ -173,6 +175,9 @@ private Settings filterSettings(IndexMetadata sourceIndex) {
             if (setting.getProperties().contains(Setting.Property.IndexSettingDeprecatedInV7AndRemovedInV8)) {
                 continue;
             }
+            if (isServerless && setting.isServerlessPublic() == false) {
+                continue;
+            }
             if (SPECIFIC_SETTINGS_TO_REMOVE.contains(key)) {
                 continue;
             }