fix(post-migration) remove asea config aggregator (#1261)

Author: crissupb

reference-artifacts/Custom-Scripts/lza-upgrade/src/common/aws/config-service.ts

@@ -0,0 +1,40 @@
+/* eslint-disable */
+/**
+ *  Copyright 2025 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance
+ *  with the License. A copy of the License is located at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  or in the 'license' file accompanying this file. This file is distributed on an 'AS IS' BASIS, WITHOUT WARRANTIES
+ *  OR CONDITIONS OF ANY KIND, express or implied. See the License for the specific language governing permissions
+ *  and limitations under the License.
+ */
+import { ConfigServiceClient, DeleteConfigurationAggregatorCommand } from '@aws-sdk/client-config-service';
+import { Credentials } from '@aws-sdk/client-sts';
+import { throttlingBackOff } from './backoff';
+
+export class ConfigService {
+  private readonly serviceClient: ConfigServiceClient;
+
+  constructor(credentials?: Credentials, region?: string) {
+    if (credentials) {
+      this.serviceClient = new ConfigServiceClient({ credentials: {
+        accessKeyId: credentials.AccessKeyId!,
+        secretAccessKey: credentials.SecretAccessKey!,
+        sessionToken: credentials.SessionToken! }, 
+        region });
+    } else {
+      this.serviceClient = new ConfigServiceClient({});
+    }
+  }
+
+  async deleteConfigAggregator(acceleratorPrefix: string): Promise<void> {
+    try {
+      await throttlingBackOff(() => this.serviceClient.send(new DeleteConfigurationAggregatorCommand({ ConfigurationAggregatorName: `${acceleratorPrefix}Config-Org-Aggregator` })));
+    } catch (error) {
+      console.log('No Org Aggregator found');
+    }
+  }
+}

reference-artifacts/Custom-Scripts/lza-upgrade/src/post-migration.ts

@@ -15,6 +15,7 @@ import path from 'path';
 import { AcceleratorConfig, ImportCertificateConfig, ImportCertificateConfigType } from './asea-config';
 import { loadAseaConfig } from './asea-config/load';
 import { DynamoDB } from './common/aws/dynamodb';
+import { ConfigService } from './common/aws/config-service';
 import { S3 } from './common/aws/s3';
 import { Account, getAccountId } from './common/outputs/accounts';
 import { StackOutput, findValuesFromOutputs, loadOutputs } from './common/outputs/load-outputs';
@@ -30,6 +31,7 @@ export class PostMigration {
   private readonly aseaPrefix: string;
   private readonly s3: S3;
   private readonly dynamoDb: DynamoDB;
+  private readonly configService: ConfigService;
   private outputs: StackOutput[] = [];
   private accounts: Account[] = [];
   private centralBucket: string | undefined;
@@ -48,6 +50,7 @@ export class PostMigration {
     this.mappingRepositoryName = config.mappingRepositoryName;
     this.s3 = new S3(undefined, this.region);
     this.dynamoDb = new DynamoDB(undefined, this.region);
+    this.configService = new ConfigService(undefined, this.region);
     this.args = args;
     this.outputsDirectory = './outputs';
     this.writeConfig = {
@@ -375,6 +378,7 @@ export class PostMigration {
       phase: '3',
       resourceType: 'AWS::Config::RemediationConfiguration',
     });
+    await this.configService.deleteConfigAggregator(this.aseaPrefix);
   }
 
   private async removeLogging(mappingConfig: { mappings: ASEAResourceMapping; mappingBucket: string; s3Client: S3 }) {