Remove legacy ES client usages in home and xpack_legacy (#97359)

* Home plugin: remove usages of the legacy ES client

* remove legacy es client usage in xpack_legacy

src/plugins/home/server/services/sample_data/routes/install.ts

@@ -7,7 +7,7 @@
  */
 
 import { schema } from '@kbn/config-schema';
-import { IRouter, Logger, RequestHandlerContext } from 'src/core/server';
+import { IRouter, Logger, IScopedClusterClient } from 'src/core/server';
 import { SampleDatasetSchema } from '../lib/sample_dataset_registry_types';
 import { createIndexName } from '../lib/create_index_name';
 import {
@@ -22,7 +22,7 @@ const insertDataIntoIndex = (
   dataIndexConfig: any,
   index: string,
   nowReference: string,
-  context: RequestHandlerContext,
+  esClient: IScopedClusterClient,
   logger: Logger
 ) => {
   function updateTimestamps(doc: any) {
@@ -51,9 +51,11 @@ const insertDataIntoIndex = (
       bulk.push(insertCmd);
       bulk.push(updateTimestamps(doc));
     });
-    const resp = await context.core.elasticsearch.legacy.client.callAsCurrentUser('bulk', {
+
+    const { body: resp } = await esClient.asCurrentUser.bulk({
       body: bulk,
     });
+
     if (resp.errors) {
       const errMsg = `sample_data install errors while bulk inserting. Elasticsearch response: ${JSON.stringify(
         resp,
@@ -100,7 +102,7 @@ export function createInstallRoute(
 
         // clean up any old installation of dataset
         try {
-          await context.core.elasticsearch.legacy.client.callAsCurrentUser('indices.delete', {
+          await context.core.elasticsearch.client.asCurrentUser.indices.delete({
             index,
           });
         } catch (err) {
@@ -108,17 +110,13 @@ export function createInstallRoute(
         }
 
         try {
-          const createIndexParams = {
+          await context.core.elasticsearch.client.asCurrentUser.indices.create({
             index,
             body: {
               settings: { index: { number_of_shards: 1, auto_expand_replicas: '0-1' } },
               mappings: { properties: dataIndexConfig.fields },
             },
-          };
-          await context.core.elasticsearch.legacy.client.callAsCurrentUser(
-            'indices.create',
-            createIndexParams
-          );
+          });
         } catch (err) {
           const errMsg = `Unable to create sample data index "${index}", error: ${err.message}`;
           logger.warn(errMsg);
@@ -130,7 +128,7 @@ export function createInstallRoute(
             dataIndexConfig,
             index,
             nowReference,
-            context,
+            context.core.elasticsearch.client,
             logger
           );
           (counts as any)[index] = count;

src/plugins/home/server/services/sample_data/routes/list.ts

@@ -36,22 +36,20 @@ export const createListRoute = (router: IRouter, sampleDatasets: SampleDatasetSc
         const dataIndexConfig = sampleDataset.dataIndices[i];
         const index = createIndexName(sampleDataset.id, dataIndexConfig.id);
         try {
-          const indexExists = await context.core.elasticsearch.legacy.client.callAsCurrentUser(
-            'indices.exists',
-            { index }
-          );
+          const {
+            body: indexExists,
+          } = await context.core.elasticsearch.client.asCurrentUser.indices.exists({
+            index,
+          });
           if (!indexExists) {
             sampleDataset.status = NOT_INSTALLED;
             return;
           }
 
-          const { count } = await context.core.elasticsearch.legacy.client.callAsCurrentUser(
-            'count',
-            {
-              index,
-            }
-          );
-          if (count === 0) {
+          const { body: count } = await context.core.elasticsearch.client.asCurrentUser.count({
+            index,
+          });
+          if (count.count === 0) {
             sampleDataset.status = NOT_INSTALLED;
             return;
           }

src/plugins/home/server/services/sample_data/routes/uninstall.ts

@@ -28,11 +28,7 @@ export function createUninstallRoute(
     async (
       {
         core: {
-          elasticsearch: {
-            legacy: {
-              client: { callAsCurrentUser },
-            },
-          },
+          elasticsearch: { client: esClient },
           savedObjects: { getClient: getSavedObjectsClient, typeRegistry },
         },
       },
@@ -50,7 +46,9 @@ export function createUninstallRoute(
         const index = createIndexName(sampleDataset.id, dataIndexConfig.id);
 
         try {
-          await callAsCurrentUser('indices.delete', { index });
+          await esClient.asCurrentUser.indices.delete({
+            index,
+          });
         } catch (err) {
           return response.customError({
             statusCode: err.status,

src/plugins/home/server/services/sample_data/usage/collector.ts

@@ -6,22 +6,17 @@
  * Side Public License, v 1.
  */
 
-import { PluginInitializerContext } from 'kibana/server';
-import { first } from 'rxjs/operators';
+import type { PluginInitializerContext } from 'kibana/server';
+import type { UsageCollectionSetup } from '../../../../../usage_collection/server';
 import { fetchProvider, TelemetryResponse } from './collector_fetch';
-import { UsageCollectionSetup } from '../../../../../usage_collection/server';
 
-export async function makeSampleDataUsageCollector(
+export function makeSampleDataUsageCollector(
   usageCollection: UsageCollectionSetup,
   context: PluginInitializerContext
 ) {
-  let index: string;
-  try {
-    const config = await context.config.legacy.globalConfig$.pipe(first()).toPromise();
-    index = config.kibana.index;
-  } catch (err) {
-    return; // kibana plugin is not enabled (test environment)
-  }
+  const config = context.config.legacy.get();
+  const index = config.kibana.index;
+
   const collector = usageCollection.makeUsageCollector<TelemetryResponse>({
     type: 'sample-data',
     fetch: fetchProvider(index),

x-pack/plugins/xpack_legacy/server/routes/settings.test.ts

@@ -9,11 +9,7 @@ import { BehaviorSubject } from 'rxjs';
 import { UnwrapPromise } from '@kbn/utility-types';
 import supertest from 'supertest';
 
-import {
-  LegacyAPICaller,
-  ServiceStatus,
-  ServiceStatusLevels,
-} from '../../../../../src/core/server';
+import { ServiceStatus, ServiceStatusLevels } from '../../../../../src/core/server';
 import {
   contextServiceMock,
   elasticsearchServiceMock,
@@ -31,24 +27,18 @@ export function mockGetClusterInfo(clusterInfo: any) {
   esClient.info.mockResolvedValue({ body: { ...clusterInfo } });
   return esClient;
 }
+
 describe('/api/settings', () => {
   let server: HttpService;
   let httpSetup: HttpSetup;
   let overallStatus$: BehaviorSubject<ServiceStatus>;
-  let mockApiCaller: jest.Mocked<LegacyAPICaller>;
 
   beforeEach(async () => {
-    mockApiCaller = jest.fn();
     server = createHttpServer();
     httpSetup = await server.setup({
       context: contextServiceMock.createSetupContract({
         core: {
           elasticsearch: {
-            legacy: {
-              client: {
-                callAsCurrentUser: mockApiCaller,
-              },
-            },
             client: {
               asCurrentUser: mockGetClusterInfo({ cluster_uuid: 'yyy-yyyyy' }),
             },

x-pack/plugins/xpack_legacy/server/routes/settings.ts

@@ -42,9 +42,7 @@ export function registerSettingsRoute({
       validate: false,
     },
     async (context, req, res) => {
-      const { callAsCurrentUser } = context.core.elasticsearch.legacy.client;
       const collectorFetchContext = {
-        callCluster: callAsCurrentUser,
         esClient: context.core.elasticsearch.client.asCurrentUser,
         soClient: context.core.savedObjects.client,
       };