Support wildcard/regex for indices param in _remotestore/_restore

Signed-off-by: bansvaru <[email protected]>

server/src/main/java/org/opensearch/index/recovery/RemoteStoreRestoreService.java

@@ -12,6 +12,7 @@
 import org.apache.logging.log4j.Logger;
 import org.opensearch.Version;
 import org.opensearch.action.admin.cluster.remotestore.restore.RestoreRemoteStoreRequest;
+import org.opensearch.action.support.IndicesOptions;
 import org.opensearch.cluster.ClusterState;
 import org.opensearch.cluster.ClusterStateUpdateTask;
 import org.opensearch.cluster.block.ClusterBlocks;
@@ -48,6 +49,7 @@
 import java.util.stream.Collectors;
 
 import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_REMOTE_STORE_ENABLED;
+import static org.opensearch.snapshots.SnapshotUtils.filterIndices;
 
 /**
  * Service responsible for restoring index data from remote store
@@ -151,7 +153,12 @@ public RemoteRestoreResult restore(
                 throw new IllegalStateException("Unable to restore remote index metadata", e);
             }
         } else {
-            for (String indexName : indexNames) {
+            List<String> filteredIndices = filterIndices(
+                List.of(currentState.metadata().getConcreteAllIndices()),
+                indexNames,
+                IndicesOptions.fromOptions(true, true, true, true)
+            );
+            for (String indexName : filteredIndices) {
                 IndexMetadata indexMetadata = currentState.metadata().index(indexName);
                 if (indexMetadata == null) {
                     logger.warn("Index restore is not supported for non-existent index. Skipping: {}", indexName);