Properly filter out system indices in CCS env (#16536)

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/lib/__tests__/get_matched_indices.test.js

@@ -93,4 +93,41 @@ describe('getMatchedIndices', () => {
       ]);
     });
   });
+
+  describe('systemIndices', () => {
+    it('should return all visible ccs indices', () => {
+      const query = 'cluster_one:*';
+      const indices = [
+        { name: 'cluster_one:kibana' },
+        { name: 'cluster_one:es' },
+        { name: 'cluster_two:kibana' },
+        { name: 'kibana' },
+        { name: 'cluster_one:.kibana' },
+      ];
+
+      const { visibleIndices } = getMatchedIndices(indices, indices, query, true);
+      expect(visibleIndices).toEqual([
+        { name: 'cluster_one:kibana' },
+        { name: 'cluster_one:es' },
+        { name: 'cluster_one:.kibana' },
+      ]);
+    });
+
+    it('should return all visible ccs indices except for system indices', () => {
+      const query = 'cluster_one:*';
+      const indices = [
+        { name: 'cluster_one:kibana' },
+        { name: 'cluster_one:es' },
+        { name: 'cluster_two:kibana' },
+        { name: 'kibana' },
+        { name: 'cluster_one:.kibana' },
+      ];
+
+      const { visibleIndices } = getMatchedIndices(indices, indices, query, false);
+      expect(visibleIndices).toEqual([
+        { name: 'cluster_one:kibana' },
+        { name: 'cluster_one:es' },
+      ]);
+    });
+  });
 });

src/core_plugins/kibana/public/management/sections/indices/create_index_pattern_wizard/lib/get_matched_indices.js

@@ -1,6 +1,18 @@
 import { MAX_NUMBER_OF_MATCHING_INDICES } from '../constants';
 import { isQueryAMatch } from './is_query_a_match';
 
+function isSystemIndex(index) {
+  if (index.startsWith('.')) {
+    return true;
+  }
+
+  if (index.includes(':')) {
+    return index.split(':').reduce((isSystem, index) => isSystem || isSystemIndex(index), false);
+  }
+
+  return false;
+}
+
 function filterSystemIndices(indices, isIncludingSystemIndices) {
   if (!indices) {
     return indices;
@@ -9,7 +21,7 @@ function filterSystemIndices(indices, isIncludingSystemIndices) {
   const acceptableIndices = isIncludingSystemIndices
     ? indices
     // All system indices begin with a period.
-    : indices.filter(index => !index.name.startsWith('.'));
+    : indices.filter(index => !isSystemIndex(index.name));
 
   return acceptableIndices.slice(0, MAX_NUMBER_OF_MATCHING_INDICES);
 }