[Monitoring] Update /api/stats to use core.metrics

src/legacy/server/status/index.js

@@ -57,7 +57,7 @@ export function statusMixin(kbnServer, server, config) {
   // init routes
   registerStatusPage(kbnServer, server, config);
   registerStatusApi(kbnServer, server, config);
-  registerStatsApi(usageCollection, server, config);
+  registerStatsApi(usageCollection, server, config, kbnServer);
 
   // expore shared functionality
   server.decorate('server', 'getOSInfo', getOSInfo);

src/legacy/server/status/routes/api/register_stats.js

@@ -21,7 +21,7 @@ import Joi from 'joi';
 import boom from 'boom';
 import { i18n } from '@kbn/i18n';
 import { wrapAuthConfig } from '../../wrap_auth_config';
-import { KIBANA_STATS_TYPE } from '../../constants';
+import { getKibanaInfoForStats } from '../../lib';
 
 const STATS_NOT_READY_MESSAGE = i18n.translate('server.stats.notReadyMessage', {
   defaultMessage: 'Stats are not ready yet. Please try again later.',
@@ -37,7 +37,7 @@ const STATS_NOT_READY_MESSAGE = i18n.translate('server.stats.notReadyMessage', {
  *   - Any other value causes a statusCode 400 response (Bad Request)
  * Including ?exclude_usage in the query string excludes the usage stats from the response. Same value semantics as ?extended
  */
-export function registerStatsApi(usageCollection, server, config) {
+export function registerStatsApi(usageCollection, server, config, kbnServer) {
   const wrapAuth = wrapAuthConfig(config.get('status.allowAnonymous'));
 
   const getClusterUuid = async callCluster => {
@@ -50,6 +50,17 @@ export function registerStatsApi(usageCollection, server, config) {
     return usageCollection.toObject(usage);
   };
 
+  let lastMetrics = null;
+  /* kibana_stats gets singled out from the collector set as it is used
+   * for health-checking Kibana and fetch does not rely on fetching data
+   * from ES */
+  server.newPlatform.setup.core.metrics.getOpsMetrics$().subscribe(metrics => {
+    lastMetrics = {
+      ...metrics,
+      timestamp: new Date().toISOString(),
+    };
+  });
+
   server.route(
     wrapAuth({
       method: 'GET',
@@ -133,15 +144,15 @@ export function registerStatsApi(usageCollection, server, config) {
           }
         }
 
-        /* kibana_stats gets singled out from the collector set as it is used
-         * for health-checking Kibana and fetch does not rely on fetching data
-         * from ES */
-        const kibanaStatsCollector = usageCollection.getCollectorByType(KIBANA_STATS_TYPE);
-        if (!(await kibanaStatsCollector.isReady())) {
+        if (!lastMetrics) {
           return boom.serverUnavailable(STATS_NOT_READY_MESSAGE);
         }
-        let kibanaStats = await kibanaStatsCollector.fetch();
-        kibanaStats = usageCollection.toApiFieldNames(kibanaStats);
+        const kibanaStats = usageCollection.toApiFieldNames({
+          ...lastMetrics,
+          kibana: getKibanaInfoForStats(server, kbnServer),
+          last_updated: new Date().toISOString(),
+          collection_interval_in_millis: config.get('ops.interval'),
+        });
 
         return {
           ...kibanaStats,

x-pack/plugins/monitoring/server/kibana_monitoring/bulk_uploader.js

@@ -6,7 +6,10 @@
 
 import { defaultsDeep, uniq, compact, get } from 'lodash';
 
-import { TELEMETRY_COLLECTION_INTERVAL } from '../../common/constants';
+import {
+  TELEMETRY_COLLECTION_INTERVAL,
+  KIBANA_STATS_TYPE_MONITORING,
+} from '../../common/constants';
 
 import { sendBulkPayload, monitoringBulk } from './lib';
 import { hasMonitoringCluster } from '../es_client/instantiate_client';
@@ -188,11 +191,18 @@ export class BulkUploader {
     );
   }
 
-  getKibanaStats() {
-    return {
+  getKibanaStats(type) {
+    const stats = {
       ...this.kibanaStats,
       status: this.kibanaStatusGetter(),
     };
+
+    if (type === KIBANA_STATS_TYPE_MONITORING) {
+      delete stats.port;
+      delete stats.locale;
+    }
+
+    return stats;
   }
 
   /*
@@ -252,7 +262,7 @@ export class BulkUploader {
         ...accum,
         { index: { _type: type } },
         {
-          kibana: this.getKibanaStats(),
+          kibana: this.getKibanaStats(type),
           ...typesNested[type],
         },
       ];

x-pack/plugins/monitoring/server/kibana_monitoring/collectors/get_ops_stats_collector.ts

@@ -5,6 +5,7 @@
  */
 
 import { Observable } from 'rxjs';
+import { cloneDeep } from 'lodash';
 import moment from 'moment';
 import { OpsMetrics } from 'kibana/server';
 import { UsageCollectionSetup } from 'src/plugins/usage_collection/server';
@@ -22,7 +23,15 @@ export function getOpsStatsCollector(
   metrics$: Observable<OpsMetrics>
 ) {
   let lastMetrics: MonitoringOpsMetrics | null = null;
-  metrics$.subscribe(metrics => {
+  metrics$.subscribe(_metrics => {
+    const metrics: any = cloneDeep(_metrics);
+    // Ensure we only include the same data that Metricbeat collection would get
+    delete metrics.process.pid;
+    metrics.response_times = {
+      average: metrics.response_times.avg_in_millis,
+      max: metrics.response_times.max_in_millis,
+    };
+    delete metrics.requests.statusCodes;
     lastMetrics = {
       ...metrics,
       timestamp: moment.utc().toISOString(),

x-pack/plugins/monitoring/server/kibana_monitoring/collectors/get_settings_collector.ts

@@ -12,9 +12,6 @@ import { MonitoringConfig } from '../../config';
  * If so, get email from kibana.yml
  */
 export async function getDefaultAdminEmail(config: MonitoringConfig) {
-  if (!config.cluster_alerts.email_notifications.enabled) {
-    return null;
-  }
   return config.cluster_alerts.email_notifications.email_address || null;
 }
 

x-pack/plugins/monitoring/server/plugin.ts

@@ -51,7 +51,6 @@ import { InfraPluginSetup } from '../../infra/server';
 
 export interface LegacyAPI {
   getServerStatus: () => string;
-  infra: any;
 }
 
 interface PluginsSetup {
@@ -189,8 +188,9 @@ export class Plugin {
           name: serverInfo.name,
           index: get(legacyConfig, 'kibana.index'),
           host: serverInfo.host,
-          transport_address: `${serverInfo.host}:${serverInfo.port}`,
+          locale: i18n.getLocale(),
           port: serverInfo.port.toString(),
+          transport_address: `${serverInfo.host}:${serverInfo.port}`,
           version: this.initializerContext.env.packageInfo.version,
           snapshot: snapshotRegex.test(this.initializerContext.env.packageInfo.version),
         },