PLT-6474 Basic Elasticsearch System Console Page (#6825)

* PLT-6474: Basic System Console Elasticsearch Config.

* Fix review comments.

* More review fixes.

* Review comments.

webapp/actions/admin_actions.jsx

@@ -383,3 +383,16 @@ export function getPostsPerDayAnalytics(teamId) {
 export function getUsersPerDayAnalytics(teamId) {
     AdminActions.getUsersPerDayAnalytics(teamId)(dispatch, getState);
 }
+
+export function elasticsearchTest(config, success, error) {
+    AdminActions.testElasticsearch(config)(dispatch, getState).then(
+        (data) => {
+            if (data && success) {
+                success(data);
+            } else if (data == null && error) {
+                const serverError = getState().requests.admin.testElasticsearch.error;
+                error({id: serverError.server_error_id, ...serverError});
+            }
+        }
+    );
+}