[7.x] [Monitoring] Migrate server to NP (elastic#56675) (elastic#60796)

* Backport 3a39602

* Remove unused code

src/legacy/core_plugins/telemetry/server/collection_manager.ts

@@ -20,6 +20,7 @@
 import { encryptTelemetry } from './collectors';
 import { CallCluster } from '../../elasticsearch';
 import { UsageCollectionSetup } from '../../../../plugins/usage_collection/server';
+import { Cluster } from '../../elasticsearch';
 import { ESLicense } from './telemetry_collection/get_local_license';
 
 export type EncryptedStatsGetterConfig = { unencrypted: false } & {
@@ -70,7 +71,7 @@ export type LicenseGetter = (
 interface CollectionConfig<T extends BasicStatsPayload> {
   title: string;
   priority: number;
-  esCluster: string;
+  esCluster: string | Cluster;
   statsGetter: StatsGetter<T>;
   clusterDetailsGetter: ClusterDetailsGetter;
   licenseGetter: LicenseGetter;
@@ -79,7 +80,7 @@ interface Collection {
   statsGetter: StatsGetter;
   licenseGetter: LicenseGetter;
   clusterDetailsGetter: ClusterDetailsGetter;
-  esCluster: string;
+  esCluster: string | Cluster;
   title: string;
 }
 
@@ -135,9 +136,10 @@ export class TelemetryCollectionManager {
   ): Promise<StatsCollectionConfig> => {
     const { start, end } = config;
     const server = config.unencrypted ? config.req.server : config.server;
-    const { callWithRequest, callWithInternalUser } = server.plugins.elasticsearch.getCluster(
-      collection.esCluster
-    );
+    const { callWithRequest, callWithInternalUser } =
+      typeof collection.esCluster === 'string'
+        ? server.plugins.elasticsearch.getCluster(collection.esCluster)
+        : collection.esCluster;
     const callCluster = config.unencrypted
       ? (...args: any[]) => callWithRequest(config.req, ...args)
       : callWithInternalUser;

src/legacy/server/status/constants.js

@@ -17,4 +17,4 @@
  * under the License.
  */
 
-export const KIBANA_STATS_TYPE = 'kibana_stats'; // kibana stats per 5s intervals
+export const KIBANA_STATS_TYPE = 'oss_kibana_stats'; // kibana stats per 5s intervals

x-pack/.i18nrc.json

@@ -28,7 +28,7 @@
     "xpack.main": "legacy/plugins/xpack_main",
     "xpack.maps": ["plugins/maps", "legacy/plugins/maps"],
     "xpack.ml": ["plugins/ml", "legacy/plugins/ml"],
-    "xpack.monitoring": "legacy/plugins/monitoring",
+    "xpack.monitoring": ["plugins/monitoring", "legacy/plugins/monitoring"],
     "xpack.remoteClusters": "plugins/remote_clusters",
     "xpack.reporting": ["plugins/reporting", "legacy/plugins/reporting"],
     "xpack.rollupJobs": "legacy/plugins/rollup",

x-pack/legacy/plugins/monitoring/config.js

@@ -4,8 +4,6 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { XPACK_INFO_API_DEFAULT_POLL_FREQUENCY_IN_MILLIS } from '../../server/lib/constants';
-
 /**
  * User-configurable settings for xpack.monitoring via configuration schema
  * @param {Object} Joi - HapiJS Joi module that allows for schema validation
@@ -132,9 +130,9 @@ export const config = Joi => {
         email_address: Joi.string().email(),
       }).default(),
     }).default(),
-    xpack_api_polling_frequency_millis: Joi.number().default(
-      XPACK_INFO_API_DEFAULT_POLL_FREQUENCY_IN_MILLIS
-    ),
+    licensing: Joi.object({
+      api_polling_frequency: Joi.number().default(30001),
+    }),
     agent: Joi.object({
       interval: Joi.string()
         .regex(/[\d\.]+[yMwdhms]/)

x-pack/legacy/plugins/monitoring/index.js

@@ -0,0 +1,59 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { get } from 'lodash';
+import { resolve } from 'path';
+import { config } from './config';
+import { getUiExports } from './ui_exports';
+import { KIBANA_ALERTING_ENABLED } from './common/constants';
+import { telemetryCollectionManager } from '../../../../src/legacy/core_plugins/telemetry/server';
+
+/**
+ * Invokes plugin modules to instantiate the Monitoring plugin for Kibana
+ * @param kibana {Object} Kibana plugin instance
+ * @return {Object} Monitoring UI Kibana plugin object
+ */
+const deps = ['kibana', 'elasticsearch', 'xpack_main'];
+if (KIBANA_ALERTING_ENABLED) {
+  deps.push(...['alerting', 'actions']);
+}
+export const monitoring = kibana => {
+  return new kibana.Plugin({
+    require: deps,
+    id: 'monitoring',
+    configPrefix: 'monitoring',
+    publicDir: resolve(__dirname, 'public'),
+    init(server) {
+      const serverConfig = server.config();
+      const npMonitoring = server.newPlatform.setup.plugins.monitoring;
+      if (npMonitoring) {
+        const kbnServerStatus = this.kbnServer.status;
+        npMonitoring.registerLegacyAPI({
+          telemetryCollectionManager,
+          getServerStatus: () => {
+            const status = kbnServerStatus.toJSON();
+            return get(status, 'overall.state');
+          },
+        });
+      }
+
+      server.injectUiAppVars('monitoring', () => {
+        return {
+          maxBucketSize: serverConfig.get('monitoring.ui.max_bucket_size'),
+          minIntervalSeconds: serverConfig.get('monitoring.ui.min_interval_seconds'),
+          kbnIndex: serverConfig.get('kibana.index'),
+          showLicenseExpiration: serverConfig.get('monitoring.ui.show_license_expiration'),
+          showCgroupMetricsElasticsearch: serverConfig.get(
+            'monitoring.ui.container.elasticsearch.enabled'
+          ),
+          showCgroupMetricsLogstash: serverConfig.get('monitoring.ui.container.logstash.enabled'), // Note, not currently used, but see https://github.com/elastic/x-pack-kibana/issues/1559 part 2
+        };
+      });
+    },
+    config,
+    uiExports: getUiExports(),
+  });
+};

x-pack/legacy/plugins/monitoring/public/views/cluster/listing/index.js

@@ -56,6 +56,7 @@ uiRoutes
         const globalState = $injector.get('globalState');
         const storage = $injector.get('localStorage');
         const showLicenseExpiration = $injector.get('showLicenseExpiration');
+
         this.data = $route.current.locals.clusters;
 
         $scope.$watch(