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AWSTemplateFormatVersion: '2010-09-09'
Description: AWS CloudFormation template to create custom AWS Config rules. You will
  be billed for the AWS resources used if you create a stack from this template.
Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
    - Label:
        default: Lambda Account ID
      Parameters:
      - LambdaAccountId
    ParameterLabels:
      LambdaAccountId:
        default: 'REQUIRED: Account ID that contains Lambda Function(s) that back
          the Rules in this template.'
Parameters:
  LambdaAccountId:
    Description: Account ID that contains Lambda functions for Config Rules.
    MaxLength: '12'
    MinLength: '12'
    Type: String
Resources:
  ConfigRole:
    Type: AWS::IAM::Role
    Metadata:
      cfn_nag:
        rules_to_suppress:
          - id: W28
            reason: "This role name is explicitly mentioned in the Blog post."
    Properties:
      RoleName: AWSRDKLambdaRole
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
        - Sid: REMOTE
          Action: sts:AssumeRole
          Effect: Allow
          Principal:
            AWS: !Sub arn:${AWS::Partition}:iam::${LambdaAccountId}:root
          Condition:
            StringLike:
              aws:PrincipalArn: !Sub arn:${AWS::Partition}:iam::${LambdaAccountId}:role/rdk/*
      ManagedPolicyArns:
      - !Sub arn:${AWS::Partition}:iam::aws:policy/service-role/AWSConfigRole