Resources:
  ServiceLinkedRoleForSecurityHub:
    Type: AWS::IAM::ServiceLinkedRole
    DeletionPolicy: Retain
    Properties: 
      AWSServiceName: securityhub.amazonaws.com
      Description: A service-linked role required for AWS Security Hub to access your resources.

Resources:
  SecurityHub:
    DependsOn:
      - ServiceLinkedRoleForSecurityHub
    Type: AWS::SecurityHub::Hub

Resources:
  CloudWatchEventsForSecurityHub:
    Type: AWS::Events::Rule
    Properties: 
      Description: CloudWatch Events about SecurityHub.
      EventPattern:
        source:
          - aws.securityhub
        detail-type: 
          - Security Hub Findings - Imported
        detail:
          findings:
            Compliance:
              Status:
                - PASSED
            RecordState:
              - ARCHIVED
      Name: AWS_Security_Hub
      State: ENABLED
      Targets:
        - Arn: !Ref SnsTopicARN
          Id: CloudWatchEventsForSecurityHub

Resources:
  ServiceLinkedRoleForInspector:
    Type: AWS::IAM::ServiceLinkedRole
    DeletionPolicy: Retain
    Properties: 
      AWSServiceName: inspector.amazonaws.com
      Description: A service-linked role required for Amazon Inspector to access your resources.   
  IAMRoleForInspectorEvents:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service: events.amazonaws.com
            Action: 'sts:AssumeRole'
      Description: A role required for CloudWatch Events to access Inspector.
      Policies:
        - PolicyName: !Sub 'DefaultSecuritySettings-AWSEventsInspectorPolicy-${AWS::Region}'
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action:
                  - 'inspector:StartAssessmentRun'
                Resource: '*'
      RoleName: !Sub 'DefaultSecuritySettings-InspectorEvents-${AWS::Region}'

Resources:
  InspectorAssessmentTarget:
    DependsOn:
      - ServiceLinkedRoleForInspector
    Type: AWS::Inspector::AssessmentTarget
    Properties:
      AssessmentTargetName: DefaultSecuritySettings-Assessment-Target-All-Instances-All-Rules
  InspectorAssessmentTemplate:
    Type: AWS::Inspector::AssessmentTemplate
    Properties:
      AssessmentTargetArn: !GetAtt InspectorAssessmentTarget.Arn
      DurationInSeconds: 3600
      AssessmentTemplateName: DefaultSecuritySettings-Assessment-Template-Default-All-Rules
      RulesPackageArns:
        # Asia Pacific (Tokyo)リージョンの場合
        - arn:aws:inspector:ap-northeast-1:406045910587:rulespackage/0-gHP9oWNT
        - arn:aws:inspector:ap-northeast-1:406045910587:rulespackage/0-7WNjqgGu
        - arn:aws:inspector:ap-northeast-1:406045910587:rulespackage/0-YI95DVd7
        - arn:aws:inspector:ap-northeast-1:406045910587:rulespackage/0-bBUQnxMq

Resources:
  CloudWatchEventsForInspector:
    Type: AWS::Events::Rule
    Properties: 
      Description: !Join
        - ''
        - - Scheduled Inspector Assessment for 
          - !GetAtt InspectorAssessmentTemplate.Arn
          - running every 7 day(s)
      Name: Amazon_Inspector_Assessment
      # Every Monday 9AM
      ScheduleExpression: cron(0 9 ? * 1 *)
      State: ENABLED
      Targets:
        - Arn: !GetAtt InspectorAssessmentTemplate.Arn
          Id: CloudWatchEventsForInspector
          RoleArn: !GetAtt IAMRoleForInspectorEvents.Arn

Resources:
  # Service-linked Role
  ServiceLinkedRoleForGuardDuty:
    Type: AWS::IAM::ServiceLinkedRole
    DeletionPolicy: Retain
    Properties: 
      AWSServiceName: guardduty.amazonaws.com
      Description: A service-linked role required for Amazon GuardDuty to access your resources.

Resources:
  GuardDutyDetector:
    DependsOn:
      - ServiceLinkedRoleForGuardDuty
    Type: AWS::GuardDuty::Detector
    Properties:
      Enable: true

Resources:
  IAMRoleForCloudTrail:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service: cloudtrail.amazonaws.com
            Action: 'sts:AssumeRole'
      Description: A role required for CloudTrail to access CloudWatch Logs.
      Policies:
        - PolicyName: !Sub 'DefaultSecuritySettings-AWSCloudTrailCloudWatchLogsPolicy-${AWS::Region}'
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action:
                  - 'logs:PutLogEvents'
                  - 'logs:CreateLogStream'
                Resource:
                  - !GetAtt CloudWatchLogsGroupForCloudTrail.Arn
      RoleName: !Sub 'DefaultSecuritySettings-CloudTrail-${AWS::Region}'

Resources:
  CloudTrail:
    DependsOn:
      - S3BucketPolicyForCloudTrail
    Condition: CreateCentralizedResources
    Type: AWS::CloudTrail::Trail
    Properties:
      CloudWatchLogsLogGroupArn: !GetAtt CloudWatchLogsGroupForCloudTrail.Arn
      CloudWatchLogsRoleArn: !GetAtt IAMRoleForCloudTrail.Arn
      EnableLogFileValidation: true
      EventSelectors:
        - DataResources: 
            # All S3 buckets
            - Type: AWS::S3::Object
              Values: 
                - arn:aws:s3
            # All Lambda functions.
            - Type: AWS::Lambda::Function
              Values: 
                - arn:aws:lambda
      IncludeGlobalServiceEvents: true
      IsLogging: true
      IsMultiRegionTrail: true
      S3BucketName: !Ref S3ForCloudTrail
      SnsTopicName: !Ref SnsTopicName
      TrailName: DefaultSecuritySettings

Resources:
  S3ForCloudTrail:
    Type: 'AWS::S3::Bucket'
    DeletionPolicy: Retain
    Properties:
      BucketEncryption:
        ServerSideEncryptionConfiguration: 
          - ServerSideEncryptionByDefault: 
              SSEAlgorithm: aws:kms
      BucketName: !Sub defaultsecuritysettings-cloudtrail-${AWS::Region}-${AWS::AccountId}
      LifecycleConfiguration:
        Rules:
          - Id: ExpirationInDays
            ExpirationInDays: 60
            Status: Enabled
      LoggingConfiguration:
        DestinationBucketName: !Ref LogBacketName
        LogFilePrefix: CloudTrail/
      PublicAccessBlockConfiguration: 
        BlockPublicAcls: true
        BlockPublicPolicy: true
        IgnorePublicAcls: true
        RestrictPublicBuckets: true
  S3BucketPolicyForCloudTrail:
    Type: AWS::S3::BucketPolicy
    Properties: 
      Bucket: !Ref S3ForCloudTrail
      PolicyDocument:
        Version: 2012-10-17
        Id: !Ref S3ForCloudTrail
        Statement:
          - Effect: Allow
            Principal:
              Service: cloudtrail.amazonaws.com
            Action:
              - 's3:GetBucketAcl'
            Resource:
              - !GetAtt S3ForCloudTrail.Arn
          - Effect: Allow
            Principal:
              Service: cloudtrail.amazonaws.com
            Action:
              - 's3:PutObject'
            Resource:
              - !Join
                - ''
                - - !GetAtt S3ForCloudTrail.Arn
                  - /AWSLogs/
                  - !Sub ${AWS::AccountId}
                  - /*
            Condition:
              StringEquals:
                s3:x-amz-acl: bucket-owner-full-control

Resources:
  CloudWatchLogsGroupForCloudTrail:
    Type: 'AWS::Logs::LogGroup'
    Properties:
      LogGroupName: /aws/cloudtrail/DefaultSecuritySettings
      RetentionInDays: 365

Resources:
  ServiceLinkedRoleForConfig:
    Type: AWS::IAM::ServiceLinkedRole
    DeletionPolicy: Retain
    Properties: 
      AWSServiceName: config.amazonaws.com
      Description: A service-linked role required for AWS Config to access your resources.
  ServiceLinkedRoleForConfigRemediation:
    Type: AWS::IAM::ServiceLinkedRole
    DeletionPolicy: Retain
    Properties: 
      AWSServiceName: remediation.config.amazonaws.com 
      Description: A service-linked role required for AWS Config Remediation to access your resources.
  IAMRoleForConfig:
    Type: 'AWS::IAM::Role'
    Properties:
      AssumeRolePolicyDocument:
        Version: 2012-10-17
        Statement:
          - Effect: Allow
            Principal:
              Service: config.amazonaws.com
            Action: 'sts:AssumeRole'
      Description: A role required for Config to access CloudFormation and ReadOnlyAccess.
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AWSCloudFormationReadOnlyAccess
        - arn:aws:iam::aws:policy/ReadOnlyAccess
      Policies:
        - PolicyName: !Sub 'DefaultSecuritySettings-AWSConfigCloudFormationPolicy-${AWS::Region}'
          PolicyDocument:
            Version: 2012-10-17
            Statement:
              - Effect: Allow
                Action:
                  - 'cloudformation:DetectStackDrift'
                  - 'cloudformation:DetectStackResourceDrift'
                Resource:
                  - '*'
      RoleName: !Sub 'DefaultSecuritySettings-Config-${AWS::Region}'

Resources:
  ConfigDeliveryChannel:
    Type: AWS::Config::DeliveryChannel
    Properties:
      Name: default
      S3BucketName: !Ref S3ForConfig
      SnsTopicARN: !Ref SnsTopicARN
  ConfigConfigurationRecorder:
    Type: AWS::Config::ConfigurationRecorder
    Properties:
      Name: default
      RecordingGroup:
        AllSupported: true
        IncludeGlobalResourceTypes: true
      RoleARN: !Sub arn:aws:iam::DefaultSecuritySettings:role/aws-service-role/config.amazonaws.com/AWSServiceRoleForConfig

Resources:
  S3ForConfig:
    Type: 'AWS::S3::Bucket'
    DeletionPolicy: Retain
    Properties:
      BucketName: !Sub defaultsecuritysettings-config-${AWS::Region}-${AWS::AccountId}
      LifecycleConfiguration:
        Rules:
          - Id: ExpirationInDays
            ExpirationInDays: 60
            Status: Enabled
      PublicAccessBlockConfiguration: 
        BlockPublicAcls: true
        BlockPublicPolicy: true
        IgnorePublicAcls: true
        RestrictPublicBuckets: true
  S3BucketPolicyForConfig:
    Type: AWS::S3::BucketPolicy
    Properties: 
      Bucket: !Ref S3ForConfig
      PolicyDocument:
        Version: 2012-10-17
        Id: !Ref S3ForConfig
        Statement:
          - Effect: Allow
            Principal:
              Service: config.amazonaws.com
            Action:
              - 's3:GetBucketAcl'
              - 's3:ListBucket'
            Resource:
              - !GetAtt S3ForConfig.Arn
          - Effect: Allow
            Principal:
              Service: config.amazonaws.com
            Action:
              - 's3:PutObject'
            Resource:
              - !Join
                - ''
                - - !GetAtt S3ForConfig.Arn
                  - /AWSLogs/
                  - !Sub ${AWS::AccountId}
                  - /Config/*
            Condition:
              StringEquals:
                s3:x-amz-acl: bucket-owner-full-control