From ed766af91f9c71c3e9067e1602be046cf72b53ab Mon Sep 17 00:00:00 2001
From: Patrick Mueller <pmuellr@gmail.com>
Date: Thu, 13 Feb 2020 13:40:32 -0500
Subject: [PATCH] [eventLog] get kibana.index name from config instead of
 hard-coding it

fixes https://github.com/elastic/kibana/issues/55629
---
 x-pack/plugins/event_log/server/plugin.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/x-pack/plugins/event_log/server/plugin.ts b/x-pack/plugins/event_log/server/plugin.ts
index e32d4ff6f7acc..653e753446bb1 100644
--- a/x-pack/plugins/event_log/server/plugin.ts
+++ b/x-pack/plugins/event_log/server/plugin.ts
@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { Observable } from 'rxjs';
 import { first } from 'rxjs/operators';
 import {
   CoreSetup,
@@ -12,6 +13,7 @@ import {
   Plugin as CorePlugin,
   PluginInitializerContext,
   ClusterClient,
+  SharedGlobalConfig,
 } from 'src/core/server';
 
 import { IEventLogConfig, IEventLogService, IEventLogger, IEventLogConfig$ } from './types';
@@ -20,9 +22,6 @@ import { createEsContext, EsContext } from './es';
 
 export type PluginClusterClient = Pick<ClusterClient, 'callAsInternalUser' | 'asScoped'>;
 
-// TODO - figure out how to get ${kibana.index} for `.kibana`
-const KIBANA_INDEX = '.kibana';
-
 const PROVIDER = 'event_log';
 const ACTIONS = {
   starting: 'starting',
@@ -35,13 +34,18 @@ export class Plugin implements CorePlugin<IEventLogService> {
   private eventLogService?: IEventLogService;
   private esContext?: EsContext;
   private eventLogger?: IEventLogger;
+  private globalConfig$: Observable<SharedGlobalConfig>;
 
   constructor(private readonly context: PluginInitializerContext) {
     this.systemLogger = this.context.logger.get();
     this.config$ = this.context.config.create<IEventLogConfig>();
+    this.globalConfig$ = this.context.config.legacy.globalConfig$;
   }
 
   async setup(core: CoreSetup): Promise<IEventLogService> {
+    const globalConfig = await this.globalConfig$.pipe(first()).toPromise();
+    const kibanaIndex = globalConfig.kibana.index;
+
     this.systemLogger.debug('setting up plugin');
 
     const config = await this.config$.pipe(first()).toPromise();
@@ -49,7 +53,7 @@ export class Plugin implements CorePlugin<IEventLogService> {
     this.esContext = createEsContext({
       logger: this.systemLogger,
       // TODO: get index prefix from config.get(kibana.index)
-      indexNameRoot: KIBANA_INDEX,
+      indexNameRoot: kibanaIndex,
       clusterClient: core.elasticsearch.adminClient,
     });