[Ingest Manager] Use long polling for agent checkin (#68922)

x-pack/plugins/ingest_manager/common/constants/agent.ts

@@ -14,3 +14,5 @@ export const AGENT_TYPE_TEMPORARY = 'TEMPORARY';
 
 export const AGENT_POLLING_THRESHOLD_MS = 30000;
 export const AGENT_POLLING_INTERVAL = 1000;
+export const AGENT_UPDATE_LAST_CHECKIN_INTERVAL_MS = 30000;
+export const AGENT_UPDATE_ACTIONS_INTERVAL_MS = 5000;

x-pack/plugins/ingest_manager/common/types/index.ts

@@ -15,6 +15,7 @@ export interface IngestManagerConfigType {
   fleet: {
     enabled: boolean;
     tlsCheckDisabled: boolean;
+    pollingRequestTimeout: number;
     kibana: {
       host?: string;
       ca_sha256?: string;

x-pack/plugins/ingest_manager/package.json

@@ -3,5 +3,8 @@
   "name": "ingest-manager",
   "version": "8.0.0",
   "private": true,
-  "license": "Elastic-License"
+  "license": "Elastic-License",
+  "dependencies": {
+    "abort-controller": "^3.0.0"
+  }
 }

x-pack/plugins/ingest_manager/server/constants/index.ts

@@ -9,6 +9,8 @@ export {
   AGENT_TYPE_TEMPORARY,
   AGENT_POLLING_THRESHOLD_MS,
   AGENT_POLLING_INTERVAL,
+  AGENT_UPDATE_LAST_CHECKIN_INTERVAL_MS,
+  AGENT_UPDATE_ACTIONS_INTERVAL_MS,
   INDEX_PATTERN_PLACEHOLDER_SUFFIX,
   // Routes
   PLUGIN_ID,

x-pack/plugins/ingest_manager/server/index.ts

@@ -27,6 +27,7 @@ export const config = {
     fleet: schema.object({
       enabled: schema.boolean({ defaultValue: true }),
       tlsCheckDisabled: schema.boolean({ defaultValue: false }),
+      pollingRequestTimeout: schema.number({ defaultValue: 60000 }),
       kibana: schema.object({
         host: schema.maybe(schema.string()),
         ca_sha256: schema.maybe(schema.string()),

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

@@ -55,6 +55,7 @@ import {
 } from './services';
 import { getAgentStatusById } from './services/agents';
 import { CloudSetup } from '../../cloud/server';
+import { agentCheckinState } from './services/agents/checkin/state';
 
 export interface IngestManagerSetupDeps {
   licensing: LicensingPluginSetup;
@@ -229,6 +230,8 @@ export class IngestManagerPlugin
       logger: this.logger,
     });
     licenseService.start(this.licensing$);
+    agentCheckinState.start();
+
     return {
       esIndexPatternService: new ESIndexPatternSavedObjectService(),
       agentService: {
@@ -240,5 +243,6 @@ export class IngestManagerPlugin
   public async stop() {
     appContextService.stop();
     licenseService.stop();
+    agentCheckinState.stop();
   }
 }

x-pack/plugins/ingest_manager/server/routes/agent/handlers.ts

@@ -4,8 +4,9 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { RequestHandler, KibanaRequest } from 'src/core/server';
+import { RequestHandler } from 'src/core/server';
 import { TypeOf } from '@kbn/config-schema';
+import { AbortController } from 'abort-controller';
 import {
   GetAgentsResponse,
   GetOneAgentResponse,
@@ -32,13 +33,6 @@ import * as AgentService from '../../services/agents';
 import * as APIKeyService from '../../services/api_keys';
 import { appContextService } from '../../services/app_context';
 
-export function getInternalUserSOClient(request: KibanaRequest) {
-  // soClient as kibana internal users, be carefull on how you use it, security is not enabled
-  return appContextService.getSavedObjects().getScopedClient(request, {
-    excludedWrappers: ['security'],
-  });
-}
-
 export const getAgentHandler: RequestHandler<TypeOf<
   typeof GetOneAgentRequestSchema.params
 >> = async (context, request, response) => {
@@ -176,14 +170,20 @@ export const postAgentCheckinHandler: RequestHandler<
   TypeOf<typeof PostAgentCheckinRequestSchema.body>
 > = async (context, request, response) => {
   try {
-    const soClient = getInternalUserSOClient(request);
+    const soClient = appContextService.getInternalUserSOClient(request);
     const res = APIKeyService.parseApiKeyFromHeaders(request.headers);
     const agent = await AgentService.getAgentByAccessAPIKeyId(soClient, res.apiKeyId);
+    const abortController = new AbortController();
+    request.events.aborted$.subscribe(() => {
+      abortController.abort();
+    });
+    const signal = abortController.signal;
     const { actions } = await AgentService.agentCheckin(
       soClient,
       agent,
       request.body.events || [],
-      request.body.local_metadata
+      request.body.local_metadata,
+      { signal }
     );
     const body: PostAgentCheckinResponse = {
       action: 'checkin',
@@ -198,16 +198,24 @@ export const postAgentCheckinHandler: RequestHandler<
     };
 
     return response.ok({ body });
-  } catch (e) {
-    if (e.isBoom && e.output.statusCode === 404) {
-      return response.notFound({
-        body: { message: `Agent ${request.params.agentId} not found` },
+  } catch (err) {
+    const logger = appContextService.getLogger();
+    if (err.isBoom) {
+      if (err.output.statusCode >= 500) {
+        logger.error(err);
+      }
+
+      return response.customError({
+        statusCode: err.output.statusCode,
+        body: { message: err.output.payload.message },
       });
     }
 
+    logger.error(err);
+
     return response.customError({
       statusCode: 500,
-      body: { message: e.message },
+      body: { message: err.message },
     });
   }
 };
@@ -218,7 +226,7 @@ export const postAgentEnrollHandler: RequestHandler<
   TypeOf<typeof PostAgentEnrollRequestSchema.body>
 > = async (context, request, response) => {
   try {
-    const soClient = getInternalUserSOClient(request);
+    const soClient = appContextService.getInternalUserSOClient(request);
     const { apiKeyId } = APIKeyService.parseApiKeyFromHeaders(request.headers);
     const enrollmentAPIKey = await APIKeyService.getEnrollmentAPIKeyById(soClient, apiKeyId);
 

x-pack/plugins/ingest_manager/server/routes/agent/index.ts

@@ -35,12 +35,12 @@ import {
   postAgentEnrollHandler,
   postAgentsUnenrollHandler,
   getAgentStatusForConfigHandler,
-  getInternalUserSOClient,
   putAgentsReassignHandler,
 } from './handlers';
 import { postAgentAcksHandlerBuilder } from './acks_handlers';
 import * as AgentService from '../../services/agents';
 import { postNewAgentActionHandlerBuilder } from './actions_handlers';
+import { appContextService } from '../../services';
 
 export const registerRoutes = (router: IRouter) => {
   // Get one
@@ -110,7 +110,9 @@ export const registerRoutes = (router: IRouter) => {
     postAgentAcksHandlerBuilder({
       acknowledgeAgentActions: AgentService.acknowledgeAgentActions,
       getAgentByAccessAPIKeyId: AgentService.getAgentByAccessAPIKeyId,
-      getSavedObjectsClientContract: getInternalUserSOClient,
+      getSavedObjectsClientContract: appContextService.getInternalUserSOClient.bind(
+        appContextService
+      ),
       saveAgentEvents: AgentService.saveAgentEvents,
     })
   );

x-pack/plugins/ingest_manager/server/services/agent_config.ts

@@ -65,8 +65,6 @@ class AgentConfigService {
       updated_by: user ? user.username : 'system',
     });
 
-    await this.triggerAgentConfigUpdatedEvent(soClient, 'updated', id);
-
     return (await this.get(soClient, id)) as AgentConfig;
   }
 

x-pack/plugins/ingest_manager/server/services/agents/actions.ts

@@ -77,6 +77,15 @@ export async function getAgentActionByIds(
   );
 }
 
+export async function getNewActionsSince(soClient: SavedObjectsClientContract, timestamp: string) {
+  const res = await soClient.find<AgentActionSOAttributes>({
+    type: AGENT_ACTION_SAVED_OBJECT_TYPE,
+    filter: `not ${AGENT_ACTION_SAVED_OBJECT_TYPE}.attributes.sent_at: * AND ${AGENT_ACTION_SAVED_OBJECT_TYPE}.attributes.created_at >= "${timestamp}"`,
+  });
+
+  return res.saved_objects.map(savedObjectToAgentAction);
+}
+
 export interface ActionsService {
   getAgent: (soClient: SavedObjectsClientContract, agentId: string) => Promise<Agent>;