Overview

A config rule that checks whether each Lambda function has the permission for logging. Each Lambda functions should have an IAM role with appropriate IAM permissions to publish its Lambda function logs to CloudWatch.

Configuration Templates

Items
4
Size
2.3 KB
AWSTemplateFormatVersion: '2010-09-09'
Description: ''
Resources:
  CustomConfigRule:
    Type: 'AWS::Config::ConfigRule'
    Properties:
      ConfigRuleName: lambda_role_allowed_on_logging
      Description: >-
        A config rule that checks whether each Lambda function has the
        permission for logging. Each Lambda functions should have an IAM role
        with appropriate IAM permissions to publish its Lambda function logs to
        CloudWatch.
      Scope:
        ComplianceResourceTypes:
          - 'AWS::Lambda::Function'
      Source:
        Owner: CUSTOM_LAMBDA
        SourceIdentifier:
          'Fn::GetAtt':
            - LambdaFunction
            - Arn
        SourceDetails:
          - EventSource: aws.config
            MessageType: ConfigurationItemChangeNotification
          - EventSource: aws.config
            MessageType: OversizedConfigurationItemChangeNotification
    DependsOn: LambdaInvokePermissions
  LambdaInvokePermissions:
    Type: 'AWS::Lambda::Permission'
    Properties:
      FunctionName:
        'Fn::GetAtt':
          - LambdaFunction
          - Arn
      Action: 'lambda:InvokeFunction'
      Principal: config.amazonaws.com
  LambdaFunction:
    Type: 'AWS::Lambda::Function'
    Properties:
      FunctionName: LambdaForlambda_role_allowed_on_logging
      Handler: index.lambda_handler
      Role:
        'Fn::GetAtt':
          - LambdaIamRole
          - Arn
      Runtime: python3.6
      Code:
        S3Bucket:
          'Fn::Sub':
            - 'asecure-cloud-cf-aux-${Region}'
            - Region:
                Ref: 'AWS::Region'
        S3Key: LAMBDA_ROLE_ALLOWED_ON_LOGGING.zip
      Timeout: 300
    DependsOn: LambdaIamRole
  LambdaIamRole:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service:
                - lambda.amazonaws.com
            Action:
              - 'sts:AssumeRole'
      ManagedPolicyArns:
        - 'arn:aws:iam::aws:policy/ReadOnlyAccess'
        - 'arn:aws:iam::aws:policy/service-role/AWSConfigRulesExecutionRole'
        - 'arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
      Policies: []
      RoleName: IAMRoleForlambda_role_allowed_on_loggingMYg
Parameters: {}
Metadata: {}
Conditions: {}

Actions



Rule Parameters

No rule paramters
 
* Required field

Sources and Documentation

Configuration Source: AWS Config Rule Repository

Additional Documentation: