chore(region-info): move the AWS_CDK_METADATA set to its own file (#2…

…7887)

In the future, the `AWS_CDK_METADATA` set will only be edited automatically, to prevent misconfiguration. Moving it to its own file makes it easier and less error prone for automated tools to generate/update the code.

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/aws-cdk-lib/region-info/build-tools/fact-tables.ts

@@ -1,41 +1,4 @@
 /* eslint-disable @aws-cdk/no-literal-partition */
-export const AWS_CDK_METADATA = new Set([
-  'af-south-1',
-  'ap-east-1',
-  'ap-northeast-1',
-  'ap-northeast-2',
-  // 'ap-northeast-3',
-  'ap-south-1',
-  // 'ap-south-2',
-  'ap-southeast-1',
-  'ap-southeast-2',
-  // 'ap-southeast-3',
-  // 'ap-southeast-4',
-  'ca-central-1',
-  'cn-north-1',
-  'cn-northwest-1',
-  'eu-central-1',
-  // 'eu-central-2',
-  'eu-north-1',
-  'eu-south-1',
-  // 'eu-south-2',
-  'eu-west-1',
-  'eu-west-2',
-  'eu-west-3',
-  // 'il-central-1',
-  // 'me-central-1',
-  'me-south-1',
-  'sa-east-1',
-  'us-east-1',
-  'us-east-2',
-  // 'us-gov-east-1',
-  // 'us-gov-west-1',
-  // 'us-iso-east-1',
-  // 'us-isob-east-1',
-  'us-west-1',
-  'us-west-2',
-]);
-
 /**
  * The hosted zone Id if using an alias record in Route53.
  *

packages/aws-cdk-lib/region-info/build-tools/generate-static-data.ts

@@ -2,7 +2,6 @@ import * as path from 'path';
 import * as fs from 'fs-extra';
 import {
   APPMESH_ECR_ACCOUNTS,
-  AWS_CDK_METADATA,
   CLOUDWATCH_LAMBDA_INSIGHTS_ARNS,
   DLC_REPOSITORY_ACCOUNTS,
   ELBV2_ACCOUNTS,
@@ -14,6 +13,7 @@ import {
   PARAMS_AND_SECRETS_LAMBDA_LAYER_ARNS,
   APPCONFIG_LAMBDA_LAYER_ARNS,
 } from './fact-tables';
+import { AWS_CDK_METADATA } from './metadata';
 import {
   AWS_REGIONS,
   AWS_SERVICES,

packages/aws-cdk-lib/region-info/build-tools/metadata.ts

@@ -0,0 +1,33 @@
+/*
+* Do not edit this file manually. To prevent misconfiguration, this file
+* should only be modified by an automated GitHub workflow, that ensures
+* that the regions present in this list correspond to all the regions
+* where we have the AWS::CDK::Metadata handler deployed.
+*
+* See: https://github.com/aws/aws-cdk/issues/27189
+*/
+
+export const AWS_CDK_METADATA = new Set([
+  'af-south-1',
+  'ap-east-1',
+  'ap-northeast-1',
+  'ap-northeast-2',
+  'ap-south-1',
+  'ap-southeast-1',
+  'ap-southeast-2',
+  'ca-central-1',
+  'cn-north-1',
+  'cn-northwest-1',
+  'eu-central-1',
+  'eu-north-1',
+  'eu-south-1',
+  'eu-west-1',
+  'eu-west-2',
+  'eu-west-3',
+  'me-south-1',
+  'sa-east-1',
+  'us-east-1',
+  'us-east-2',
+  'us-west-1',
+  'us-west-2',
+]);