Allow GET <pattern>/_rollup/data to expand data streams (#58173) (#58177)

x-pack/plugin/rollup/src/main/java/org/elasticsearch/xpack/rollup/action/TransportGetRollupIndexCapsAction.java

@@ -46,7 +46,7 @@ public class TransportGetRollupIndexCapsAction extends HandledTransportAction<Ge
                              ActionListener<GetRollupIndexCapsAction.Response> listener) {
 
         String[] indices = resolver.concreteIndexNames(clusterService.state(),
-            request.indicesOptions(), request.indices());
+            request.indicesOptions(), true, request.indices());
         Map<String, RollableIndexCaps> allCaps = getCapsByRollupIndex(Arrays.asList(indices),
             clusterService.state().getMetadata().indices());
         listener.onResponse(new GetRollupIndexCapsAction.Response(allCaps));

x-pack/plugin/src/test/resources/rest-api-spec/test/data_stream/10_data_stream_resolvability.yml

@@ -114,3 +114,38 @@
       indices.delete_data_stream:
         name: logs-foobar
   - is_true: acknowledged
+---
+"Verify data stream resolvability rollup":
+  - skip:
+      version: " - 7.8.99"
+      reason: "data streams only supported in 7.9+"
+      features: allowed_warnings
+
+  - do:
+      allowed_warnings:
+        - "index template [my-template] has index patterns [logs-*] matching patterns from existing older templates [global] with patterns (global => [*]); this template [my-template] will take precedence during new index creation"
+      indices.put_index_template:
+        name: my-ds-rolluptemplate
+        body:
+          index_patterns: [logs-*]
+          template:
+            mappings:
+              properties:
+                '@timestamp':
+                  type: date
+          data_stream:
+            timestamp_field: '@timestamp'
+
+  - do:
+      indices.create_data_stream:
+        name: logs-ds-rollup
+  - is_true: acknowledged
+
+  - do:
+      # Should not raise error
+      rollup.get_rollup_index_caps:
+        index: "logs*"
+  - do:
+      indices.delete_data_stream:
+        name: logs-ds-rollup
+  - is_true: acknowledged