cfn-stack-cleanup.yaml

Description: Deploys the AWS CloudFormation Stack Cleanup lambda into an AWS account
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31


Parameters:
  ExportPrefix:
    Description: A optional unique prefix given to the export names
    Type: String
    Default: ""


Metadata:
  AWS::ServerlessRepo::Application:
    Author: Xavier Thomas
    Description: AWS Lambda custom resource that can be invoked from an AWS CloudFormation stack to clean up any left over stack resources such as S3 buckets, Log Groups, Sub-Stacks, etc.
    HomePageUrl: https://github.com/xavier-thomas/aws-cfn-stack-cleanup
    Labels:
      - CloudFormation
      - CustomResource
      - Cleanup
      - Cleaner
      - DevOps
      - S3
      - Cloudwatch-Logs
    LicenseUrl: LICENSE
    Name: Cfn-Stack-Cleanup
    ReadmeUrl: README.md
    SemanticVersion: 1.3.1
    SourceCodeUrl: https://github.com/xavier-thomas/aws-cfn-stack-cleanup
    SpdxLicenseId: BSD-3-Clause


Resources:
  StackCleanupLambda:
    Type: AWS::Serverless::Function
    Properties:
      FunctionName: !Sub ${ExportPrefix}StackCleanupLambda
      Handler: index.handler
      Layers:
        - !Ref DependencyLayer
      Runtime: nodejs16.x
      CodeUri: ./dist
      MemorySize: 128
      Timeout: 900
      Policies:
        - AWSLambdaExecute
          # Replace the resource: '*' with a specific role arn.
        - Version: "2012-10-17"
          Statement:
            - Effect: Allow
              Action:
                - s3:DeleteBucket
                - s3:DeleteObject
                - s3:List*
              Resource: '*'

  DependencyLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      CompatibleRuntimes:
        - nodejs12.x
      ContentUri: ./layer
      Description: Dependency layer for the Stack Cleanup lambda function
      LayerName: !Sub ${ExportPrefix}StackCleanupLambdaLayer
      RetentionPolicy: Delete

Outputs:

  StackCleanupLambdaArn:
    Value: !GetAtt StackCleanupLambda.Arn
    Export:
      Name: !Sub ${ExportPrefix}StackCleanupLambdaArn

  StackCleanupLambdaName:
    Value: !Ref StackCleanupLambda
    Export:
      Name: !Sub ${ExportPrefix}StackCleanupLambdaName