expose ES createClient to plugins (#40717) (#40839)

Author: mshustov

docs/development/core/server/kibana-plugin-server.coresetup.elasticsearch.md

@@ -10,5 +10,6 @@
 elasticsearch: {
         adminClient$: Observable<ClusterClient>;
         dataClient$: Observable<ClusterClient>;
+        createClient: (type: string, clientConfig?: Partial<ElasticsearchClientConfig>) => ClusterClient;
     };
 ```

docs/development/core/server/kibana-plugin-server.coresetup.md

@@ -16,6 +16,6 @@ export interface CoreSetup
 
 |  Property | Type | Description |
 |  --- | --- | --- |
-|  [elasticsearch](./kibana-plugin-server.coresetup.elasticsearch.md) | <code>{</code><br/><code>        adminClient$: Observable&lt;ClusterClient&gt;;</code><br/><code>        dataClient$: Observable&lt;ClusterClient&gt;;</code><br/><code>    }</code> |  |
+|  [elasticsearch](./kibana-plugin-server.coresetup.elasticsearch.md) | <code>{</code><br/><code>        adminClient$: Observable&lt;ClusterClient&gt;;</code><br/><code>        dataClient$: Observable&lt;ClusterClient&gt;;</code><br/><code>        createClient: (type: string, clientConfig?: Partial&lt;ElasticsearchClientConfig&gt;) =&gt; ClusterClient;</code><br/><code>    }</code> |  |
 |  [http](./kibana-plugin-server.coresetup.http.md) | <code>{</code><br/><code>        registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];</code><br/><code>        registerAuth: HttpServiceSetup['registerAuth'];</code><br/><code>        registerOnPostAuth: HttpServiceSetup['registerOnPostAuth'];</code><br/><code>        basePath: HttpServiceSetup['basePath'];</code><br/><code>        createNewServer: HttpServiceSetup['createNewServer'];</code><br/><code>        isTlsEnabled: HttpServiceSetup['isTlsEnabled'];</code><br/><code>    }</code> |  |
 

src/core/server/elasticsearch/elasticsearch_service.mock.ts

@@ -23,7 +23,7 @@ import { ElasticsearchConfig } from './elasticsearch_config';
 import { ElasticsearchService, ElasticsearchServiceSetup } from './elasticsearch_service';
 
 const createSetupContractMock = () => {
-  const setupContract: ElasticsearchServiceSetup = {
+  const setupContract: jest.Mocked<ElasticsearchServiceSetup> = {
     legacy: {
       config$: new BehaviorSubject({} as ElasticsearchConfig),
     },

src/core/server/index.ts

@@ -36,7 +36,11 @@
  */
 
 import { Observable } from 'rxjs';
-import { ClusterClient, ElasticsearchServiceSetup } from './elasticsearch';
+import {
+  ClusterClient,
+  ElasticsearchClientConfig,
+  ElasticsearchServiceSetup,
+} from './elasticsearch';
 import { HttpServiceSetup, HttpServiceStart } from './http';
 import { PluginsServiceSetup, PluginsServiceStart } from './plugins';
 
@@ -115,6 +119,10 @@ export interface CoreSetup {
   elasticsearch: {
     adminClient$: Observable<ClusterClient>;
     dataClient$: Observable<ClusterClient>;
+    createClient: (
+      type: string,
+      clientConfig?: Partial<ElasticsearchClientConfig>
+    ) => ClusterClient;
   };
   http: {
     registerOnPreAuth: HttpServiceSetup['registerOnPreAuth'];

src/core/server/plugins/plugin_context.ts

@@ -115,6 +115,7 @@ export function createPluginSetupContext<TPlugin, TPluginDependencies>(
     elasticsearch: {
       adminClient$: deps.elasticsearch.adminClient$,
       dataClient$: deps.elasticsearch.dataClient$,
+      createClient: deps.elasticsearch.createClient,
     },
     http: {
       registerOnPreAuth: deps.http.registerOnPreAuth,

src/core/server/server.api.md

@@ -89,6 +89,7 @@ export interface CoreSetup {
     elasticsearch: {
         adminClient$: Observable<ClusterClient>;
         dataClient$: Observable<ClusterClient>;
+        createClient: (type: string, clientConfig?: Partial<ElasticsearchClientConfig>) => ClusterClient;
     };
     // (undocumented)
     http: {