AWSTemplateFormatVersion: '2010-09-09'
Description: 'AWS CloudFormation Sample Template AutoScalingMultiAZWithNotifications:
  Create a multi-az, load balanced and Auto Scaled sample web site running on an Apache
  Web Serever. The application is configured to span all Availability Zones in the
  region and is Auto-Scaled based on the CPU utilization of the web servers. Notifications
  will be sent to the operator email address on scaling events. The instances are
  load balanced with a simple health check against the default web page. **WARNING**
  This template creates one or more Amazon EC2 instances and an Elastic Load Balancer.
  You will be billed for the AWS resources used if you create a stack from this template.'
Mappings:
  AWSInstanceType2Arch:
    c1.medium:
      Arch: PV64
    c1.xlarge:
      Arch: PV64
    c3.2xlarge:
      Arch: HVM64
    c3.4xlarge:
      Arch: HVM64
    c3.8xlarge:
      Arch: HVM64
    c3.large:
      Arch: HVM64
    c3.xlarge:
      Arch: HVM64
    c4.2xlarge:
      Arch: HVM64
    c4.4xlarge:
      Arch: HVM64
    c4.8xlarge:
      Arch: HVM64
    c4.large:
      Arch: HVM64
    c4.xlarge:
      Arch: HVM64
    cc2.8xlarge:
      Arch: HVM64
    cr1.8xlarge:
      Arch: HVM64
    d2.2xlarge:
      Arch: HVM64
    d2.4xlarge:
      Arch: HVM64
    d2.8xlarge:
      Arch: HVM64
    d2.xlarge:
      Arch: HVM64
    g2.2xlarge:
      Arch: HVMG2
    g2.8xlarge:
      Arch: HVMG2
    hi1.4xlarge:
      Arch: HVM64
    hs1.8xlarge:
      Arch: HVM64
    i2.2xlarge:
      Arch: HVM64
    i2.4xlarge:
      Arch: HVM64
    i2.8xlarge:
      Arch: HVM64
    i2.xlarge:
      Arch: HVM64
    m1.large:
      Arch: PV64
    m1.medium:
      Arch: PV64
    m1.small:
      Arch: PV64
    m1.xlarge:
      Arch: PV64
    m2.2xlarge:
      Arch: PV64
    m2.4xlarge:
      Arch: PV64
    m2.xlarge:
      Arch: PV64
    m3.2xlarge:
      Arch: HVM64
    m3.large:
      Arch: HVM64
    m3.medium:
      Arch: HVM64
    m3.xlarge:
      Arch: HVM64
    m4.10xlarge:
      Arch: HVM64
    m4.2xlarge:
      Arch: HVM64
    m4.4xlarge:
      Arch: HVM64
    m4.large:
      Arch: HVM64
    m4.xlarge:
      Arch: HVM64
    r3.2xlarge:
      Arch: HVM64
    r3.4xlarge:
      Arch: HVM64
    r3.8xlarge:
      Arch: HVM64
    r3.large:
      Arch: HVM64
    r3.xlarge:
      Arch: HVM64
    t1.micro:
      Arch: PV64
    t2.large:
      Arch: HVM64
    t2.medium:
      Arch: HVM64
    t2.micro:
      Arch: HVM64
    t2.nano:
      Arch: HVM64
    t2.small:
      Arch: HVM64
  AWSRegionArch2AMI:
    ap-northeast-1:
      HVM64: ami-374db956
      HVMG2: ami-4c78d52d
      PV64: ami-3e42b65f
    ap-northeast-2:
      HVM64: ami-2b408b45
      HVMG2: NOT_SUPPORTED
      PV64: NOT_SUPPORTED
    ap-south-1:
      HVM64: ami-ffbdd790
      HVMG2: ami-21a7d34e
      PV64: NOT_SUPPORTED
    ap-southeast-1:
      HVM64: ami-a59b49c6
      HVMG2: ami-f3f95990
      PV64: ami-df9e4cbc
    ap-southeast-2:
      HVM64: ami-dc361ebf
      HVMG2: ami-3a122e59
      PV64: ami-63351d00
    ca-central-1:
      HVM64: ami-730ebd17
      HVMG2: NOT_SUPPORTED
      PV64: NOT_SUPPORTED
    cn-north-1:
      HVM64: ami-8e6aa0e3
      HVMG2: NOT_SUPPORTED
      PV64: ami-77559f1a
    eu-central-1:
      HVM64: ami-ea26ce85
      HVMG2: ami-d2ff04bd
      PV64: ami-6527cf0a
    eu-west-1:
      HVM64: ami-f9dd458a
      HVMG2: ami-e2f7bd91
      PV64: ami-4cdd453f
    eu-west-2:
      HVM64: ami-886369ec
      HVMG2: NOT_SUPPORTED
      PV64: NOT_SUPPORTED
    sa-east-1:
      HVM64: ami-6dd04501
      HVMG2: NOT_SUPPORTED
      PV64: ami-1ad34676
    us-east-1:
      HVM64: ami-6869aa05
      HVMG2: ami-a41a3fb3
      PV64: ami-2a69aa47
    us-east-2:
      HVM64: ami-f6035893
      HVMG2: NOT_SUPPORTED
      PV64: NOT_SUPPORTED
    us-west-1:
      HVM64: ami-31490d51
      HVMG2: ami-00347e60
      PV64: ami-a2490dc2
    us-west-2:
      HVM64: ami-7172b611
      HVMG2: ami-caf253aa
      PV64: ami-7f77b31f
  Region2Examples:
    ap-northeast-1:
      Examples: https://s3-ap-northeast-1.amazonaws.com/cloudformation-examples-ap-northeast-1
    ap-northeast-2:
      Examples: https://s3-ap-northeast-2.amazonaws.com/cloudformation-examples-ap-northeast-2
    ap-south-1:
      Examples: https://s3-ap-south-1.amazonaws.com/cloudformation-examples-ap-south-1
    ap-southeast-1:
      Examples: https://s3-ap-southeast-1.amazonaws.com/cloudformation-examples-ap-southeast-1
    ap-southeast-2:
      Examples: https://s3-ap-southeast-2.amazonaws.com/cloudformation-examples-ap-southeast-2
    ca-central-1:
      Examples: https://s3-ca-central-1.amazonaws.com/cloudformation-examples-ca-central-1
    cn-north-1:
      Examples: https://s3.cn-north-1.amazonaws.com.cn/cloudformation-examples-cn-north-1
    eu-central-1:
      Examples: https://s3-eu-central-1.amazonaws.com/cloudformation-examples-eu-central-1
    eu-west-1:
      Examples: https://s3-eu-west-1.amazonaws.com/cloudformation-examples-eu-west-1
    eu-west-2:
      Examples: https://s3-eu-west-2.amazonaws.com/cloudformation-examples-eu-west-2
    sa-east-1:
      Examples: https://s3-sa-east-1.amazonaws.com/cloudformation-examples-sa-east-1
    us-east-1:
      Examples: https://s3.amazonaws.com/cloudformation-examples-us-east-1
    us-east-2:
      Examples: https://s3-us-east-2.amazonaws.com/cloudformation-examples-us-east-2
    us-west-1:
      Examples: https://s3-us-west-1.amazonaws.com/cloudformation-examples-us-west-1
    us-west-2:
      Examples: https://s3-us-west-2.amazonaws.com/cloudformation-examples-us-west-2
  runtime:
    us-east-1:
      production:
      - CidrIp: 0.0.0.0/0
        IpProtocol: tcp
        ToPort: 80
        FromPort: 80
Outputs:
  URL:
    Description: The URL of the website
    Value:
      Fn::Join:
      - ''
      - - http://
        - Fn::GetAtt:
          - ElasticLoadBalancer
          - DNSName
Parameters:
  azList:
    Type: "AWS::SSM::Parameter::Value<List<String>>"
    Description: "The list of AZs from Parameter Store"
    Default: '/regionSettings/azList'
  InstanceType:
    AllowedValues:
    - t1.micro
    - t2.nano
    - t2.micro
    - t2.small
    - t2.medium
    - t2.large
    - m1.small
    - m1.medium
    - m1.large
    - m1.xlarge
    - m2.xlarge
    - m2.2xlarge
    - m2.4xlarge
    - m3.medium
    - m3.large
    - m3.xlarge
    - m3.2xlarge
    - m4.large
    - m4.xlarge
    - m4.2xlarge
    - m4.4xlarge
    - m4.10xlarge
    - c1.medium
    - c1.xlarge
    - c3.large
    - c3.xlarge
    - c3.2xlarge
    - c3.4xlarge
    - c3.8xlarge
    - c4.large
    - c4.xlarge
    - c4.2xlarge
    - c4.4xlarge
    - c4.8xlarge
    - g2.2xlarge
    - g2.8xlarge
    - r3.large
    - r3.xlarge
    - r3.2xlarge
    - r3.4xlarge
    - r3.8xlarge
    - i2.xlarge
    - i2.2xlarge
    - i2.4xlarge
    - i2.8xlarge
    - d2.xlarge
    - d2.2xlarge
    - d2.4xlarge
    - d2.8xlarge
    - hi1.4xlarge
    - hs1.8xlarge
    - cr1.8xlarge
    - cc2.8xlarge
    - cg1.4xlarge
    ConstraintDescription: must be a valid EC2 instance type.
    Default: t2.small
    Description: WebServer EC2 instance type
    Type: String
  KeyName:
    ConstraintDescription: must be the name of an existing EC2 KeyPair.
    Description: The EC2 Key Pair to allow SSH access to the instances
    Type: AWS::EC2::KeyPair::KeyName
  OperatorEMail:
    AllowedPattern: ([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)
    ConstraintDescription: must be a valid email address.
    Description: EMail address to notify if there are any scaling operations
    Type: String
  SSHLocation:
    AllowedPattern: (\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})/(\d{1,2})
    ConstraintDescription: must be a valid IP CIDR range of the form x.x.x.x/x.
    Default: 0.0.0.0/0
    Description: The IP address range that can be used to SSH to the EC2 instances
    MaxLength: '18'
    MinLength: '9'
    Type: String
  ParamInstanceSecurityGroup:
    Type: List<AWS::EC2::SecurityGroup::Id>
  Aliases:
    Type: "CommaDelimitedList"
    Default: "foo.com, bar.com"
Conditions:
  S3ReplicationEnabled: !Equals [!Ref 'AWS::Region', 'us-east']
  HasSingleClusterInstance: !Equals [!Ref 'AWS::Region', 'us-east-1']
  Conditions:
    ConditionTrue:
      Fn::Equals:
        - ""
        - ""
Resources:
  CPUAlarmHigh:
    Properties:
      AlarmActions:
      - Ref: WebServerScaleUpPolicy
      AlarmDescription: Scale-up if CPU > 90% for 10 minutes
      ComparisonOperator: GreaterThanThreshold
      Dimensions:
      - Name: AutoScalingGroupName
        Value:
          Ref: WebServerGroup
      EvaluationPeriods: 2
      MetricName: CPUUtilization
      Namespace: AWS/EC2
      Period: 300
      Statistic: Average
      Threshold: 90
    Type: AWS::CloudWatch::Alarm
  CPUAlarmLow:
    Properties:
      AlarmActions:
      - Ref: WebServerScaleDownPolicy
      AlarmDescription: Scale-down if CPU < 70% for 10 minutes
      ComparisonOperator: LessThanThreshold
      Dimensions:
      - Name: AutoScalingGroupName
        Value:
          Ref: WebServerGroup
      EvaluationPeriods: 2
      MetricName: CPUUtilization
      Namespace: AWS/EC2
      Period: 300
      Statistic: Average
      Threshold: 70
    Type: AWS::CloudWatch::Alarm
  ElasticLoadBalancer:
    Properties:
      AvailabilityZones:
        Fn::GetAZs: ''
      CrossZone: True
      HealthCheck:
        HealthyThreshold: '3'
        Interval: '30'
        Target: HTTP:80/
        Timeout: '5'
        UnhealthyThreshold: '5'
      Listeners:
      - InstancePort: '80'
        LoadBalancerPort: '80'
        Protocol: HTTP
    Type: AWS::ElasticLoadBalancing::LoadBalancer
  InstanceSecurityGroup:
    Properties:
      GroupDescription: Enable SSH access and HTTP from the load balancer only
      SecurityGroupIngress:
      - CidrIp:
          Ref: SSHLocation
        FromPort: 22
        IpProtocol: tcp
        ToPort: 22
      - FromPort: 80
        IpProtocol: tcp
        SourceSecurityGroupName:
          Fn::GetAtt:
          - ElasticLoadBalancer
          - SourceSecurityGroup.GroupName
        SourceSecurityGroupOwnerId:
          Fn::GetAtt:
          - ElasticLoadBalancer
          - SourceSecurityGroup.OwnerAlias
        ToPort: 80
    Type: AWS::EC2::SecurityGroup
  LaunchConfig:
    Metadata:
      AWS::CloudFormation::Init:
        config:
          files:
            /etc/cfn/cfn-hup.conf:
              content:
                Fn::Join:
                - ''
                - - '[main]

                    '
                  - stack=
                  - Ref: AWS::StackId
                  - '

                    '
                  - region=
                  - Ref: AWS::Region
                  - '

                    '
              group: root
              mode: '000400'
              owner: root
            /etc/cfn/hooks.d/cfn-auto-reloader.conf:
              content:
                Fn::Join:
                - ''
                - - '[cfn-auto-reloader-hook]

                    '
                  - 'triggers=post.update

                    '
                  - 'path=Resources.LaunchConfig.Metadata.AWS::CloudFormation::Init

                    '
                  - 'action=/opt/aws/bin/cfn-init -v '
                  - '         --stack '
                  - Ref: AWS::StackName
                  - '         --resource LaunchConfig '
                  - '         --region '
                  - Ref: AWS::Region
                  - '

                    '
                  - 'runas=root

                    '
            /var/www/html/index.html:
              content:
                Fn::Join:
                - '

                  '
                - - <img src="
                  - Fn::FindInMap:
                    - Region2Examples
                    - Ref: AWS::Region
                    - Examples
                  - /cloudformation_graphic.png" alt="AWS CloudFormation Logo"/>
                  - <h1>Congratulations, you have successfully launched the AWS CloudFormation
                    sample.</h1>
              group: root
              mode: '000644'
              owner: root
          packages:
            yum:
              httpd: []
          services:
            sysvinit:
              cfn-hup:
                enabled: 'true'
                ensureRunning: 'true'
                files:
                - /etc/cfn/cfn-hup.conf
                - /etc/cfn/hooks.d/cfn-auto-reloader.conf
              httpd:
                enabled: 'true'
                ensureRunning: 'true'
      Comment: Install a simple application
    Properties:
      ImageId:
        Fn::FindInMap:
        - AWSRegionArch2AMI
        - Ref: AWS::Region
        - Fn::FindInMap:
          - AWSInstanceType2Arch
          - Ref: InstanceType
          - Arch
      InstanceType:
        Ref: InstanceType
      KeyName:
        Ref: KeyName
      SecurityGroups: !Ref ParamInstanceSecurityGroup
      UserData:
        Fn::Base64:
          Fn::Join:
          - ''
          - - '#!/bin/bash -xe

              '
            - 'yum update -y aws-cfn-bootstrap

              '
            - '/opt/aws/bin/cfn-init -v '
            - '         --stack '
            - Ref: AWS::StackName
            - '         --resource LaunchConfig '
            - '         --region '
            - Ref: AWS::Region
            - '

              '
            - '/opt/aws/bin/cfn-signal -e $? '
            - '         --stack '
            - Ref: AWS::StackName
            - '         --resource WebServerGroup '
            - '         --region '
            - Ref: AWS::Region
            - '

              '
    Type: AWS::AutoScaling::LaunchConfiguration
  NotificationTopic:
    Properties:
      Subscription:
      - Endpoint:
          Ref: OperatorEMail
        Protocol: email
    Type: AWS::SNS::Topic
  WebServerGroup:
    CreationPolicy:
      ResourceSignal:
        Count: '1'
        Timeout: PT15M
    Properties:
      AvailabilityZones:
        Fn::GetAZs: ''
      LaunchConfigurationName:
        Ref: LaunchConfig
      LoadBalancerNames:
      - Ref: ElasticLoadBalancer
      MaxSize: '3'
      MinSize: '1'
      NotificationConfigurations:
      - NotificationTypes:
        - autoscaling:EC2_INSTANCE_LAUNCH
        - autoscaling:EC2_INSTANCE_LAUNCH_ERROR
        - autoscaling:EC2_INSTANCE_TERMINATE
        - autoscaling:EC2_INSTANCE_TERMINATE_ERROR
        TopicARN:
          Ref: NotificationTopic
    Type: AWS::AutoScaling::AutoScalingGroup
    UpdatePolicy:
      AutoScalingRollingUpdate:
        MaxBatchSize: '1'
        MinInstancesInService: '1'
        PauseTime: PT15M
        WaitOnResourceSignals: 'true'
  WebServerScaleDownPolicy:
    Properties:
      AdjustmentType: ChangeInCapacity
      AutoScalingGroupName:
        Ref: WebServerGroup
      Cooldown: '60'
      ScalingAdjustment: -1
    Type: AWS::AutoScaling::ScalingPolicy
  WebServerScaleUpPolicy:
    Properties:
      AdjustmentType: ChangeInCapacity
      AutoScalingGroupName:
        Ref: WebServerGroup
      Cooldown: '60'
      ScalingAdjustment: 1
    Type: AWS::AutoScaling::ScalingPolicy
  RDSDBParameterGroup:
    Type: "AWS::RDS::DBParameterGroup"
    Properties:
      Description: "Transaction CloudFormation Aurora Parameter Group"
      Family: "aurora5.6"
      Parameters:
        sql_mode: "NO_AUTO_CREATE_USER"
  RDSDBParameterGroup1:
    Type: "AWS::RDS::DBParameterGroup"
    Properties:
      Description: "Transaction CloudFormation Aurora Parameter Group"
      Family: "aurora5.6"
      Parameters:
        sql_mode: "NO_AUTO_CREATE_USER"
        another_param: "ANOTHER_PARAMETER"
  ElasticsearchDomain:
    Type: 'AWS::Elasticsearch::Domain'
    Properties:
      VPCOptions:
        SubnetIds: !If [HasSingleClusterInstance, ['SubnetAPrivate'], ['SubnetAPrivate', 'SubnetBPrivate']]
  Table:
    Type: 'AWS::DynamoDB::Table'
    Properties:
      TableName: !If [HasTableName, !Ref TableName, !Ref 'AWS::NoValue']
      AttributeDefinitions: !If
      - HasSortKey
      - - AttributeName: !Ref PartitionKeyName
          AttributeType: !Ref PartitionKeyType
        - AttributeName: !Ref SortKeyName
          AttributeType: !Ref SortKeyType
      - - AttributeName: !Ref PartitionKeyName
          AttributeType: !Ref PartitionKeyType
      KeySchema: !If
      - HasSortKey
      - - AttributeName: !Ref PartitionKeyName
          KeyType: HASH
        - AttributeName: !Ref SortKeyName
          KeyType: RANGE
      - !Ref AWS::NoValue
  CustomResource1:
    Type: 'AWS::CloudFormation::CustomResource'
    Properties:
      ServiceToken: arn
      StackName: StackName
  CustomResource2:
    Type: 'Custom::CustomResource'
    Properties:
      ServiceToken: arn
      StackName: StackName
  CustomResource3:
    Type: 'Custom::SpecifiedCustomResource'
    Properties:
      ServiceToken: arn
      RequiredString: present
      OptionalBoolean: true
  Distribution:
    Type: "AWS::CloudFront::Distribution"
    Properties:
      DistributionConfig:
        Aliases: !Ref Aliases
        Enabled: True
  cacheForumRedisV1:
    Type: AWS::ElastiCache::CacheCluster
    Properties:
      PreferredAvailabilityZones: !Ref azList
      CacheNodeType: String
      Engine: String
      NumCacheNodes: 1
  ### Testing relationships for lists to Custom and Maps
  Custom:
    Type: AWS::CloudFormation::CustomResource
    Properties:
      ServiceToken: arn.example
  Helper:
    Type: 'AWS::Lambda::Function'
    Properties:
      Handler: 'helper.lambda_handler'
      Role: arn:aws:iam::123456789012:role/role-name-with-path
      Code: !GetAtt Custom.Code
  LB1:
    Type: AWS::ElasticLoadBalancingV2::LoadBalancer
    Properties:
      SecurityGroups: !GetAtt Custom.ExampleListOfStrings
      # LoadBalancerAttributes: {Type: List, ItemType: LoadBalancerAttribute}
      # should be allowed as the custom resource can return a list of objects
      LoadBalancerAttributes: !GetAtt Custom.ExampleListOfKeyValuePairs
  LB2:
    Type: AWS::ElasticLoadBalancingV2::LoadBalancer
    Properties:
      SecurityGroups: !GetAtt Custom.ExampleListOfStrings
      # LoadBalancerAttributes: {Type: List, ItemType: LoadBalancerAttribute}
      # Should be allowed because mappings can have a list of objects
      # This mapping isn't correct but validation of the actually mapping is more difficult
      LoadBalancerAttributes: !FindInMap [ AWSInstanceType2Arch, c1.medium, Arch ]
  # Don't fail when we have used a possible map
  lambdaMap1:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: test
      SecurityGroupIngress:
        - Fn::Select:
          - 0
          - Fn::FindInMap: [ runtime, us-east-1, production ]
  # Don't fail when we use the entire list from a map
  lambdaMap2:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: test
      SecurityGroupIngress:
        Fn::FindInMap: [ runtime, us-east-1, production ]
  MyCustomEnvironmentVariables:
    Type: Custom::EnvironmentVariables
    Properties:
      ServiceToken:
        Fn::ImportValue: "MyServiceToken"
      String: "envvar1=1, envvar2=2"

  ### Test AWS::NotificationARNs Psuedo Parameter
  SubStack:
    Type: AWS::CloudFormation::Stack
    Properties:
      TemplateURL: https://example.com
      NotificationARNs: !Ref AWS::NotificationARNs

  ProjectBuild:
    Type: AWS::CodeBuild::Project
    Properties:
      Name: "My Project"
      Description: "My Description"
      Artifacts:
        Type: CODEPIPELINE
      ServiceRole:
        Fn::ImportValue: "ServiceRole"
      Environment:
        ComputeType: BUILD_GENERAL1_SMALL
        Image: aws/codebuild/python:3.7.1
        Type: LINUX_CONTAINER
        EnvironmentVariables:
          Fn::If:
            - ConditionTrue
            - Fn::GetAtt: [MyCustomEnvironmentVariables, Variables]
            - Ref: AWS::NoValue
      Source:
        BuildSpec: buildspec.yaml
        Type: CODEPIPELINE
  CodeBuildProject:
    Type: AWS::CodeBuild::Project
    Properties:
      ServiceRole: Arn
      Artifacts:
        Type: CODEPIPELINE
      Environment:
        Type: LINUX_CONTAINER
        Image: String
        ComputeType: BUILD_GENERAL1_LARGE
      Source:
        Type: S3
      Triggers:
        Webhook: true
        FilterGroups:
        - - Type: EVENT
            Pattern: PULL_REQUEST_CREATED,PULL_REQUEST_UPDATED,PULL_REQUEST_REOPENED
          - Type: BASE_REF
            Pattern: ^refs/heads/main$
            ExcludeMatchedPattern: false
  CloudAvailS3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      ReplicationConfiguration: !If
        - S3ReplicationEnabled
        - - Role: !GetAtt CloudAvailReplicationRole.Arn
            Rules:
            - Destination:
                Bucket: arn:aws:s3:::cloudavail.replication.bucket
              Status: Enabled
            
        - - !Ref "AWS::NoValue"
  SSMParameterJsonList:
    Type: AWS::SSM::Parameter
    Properties:
      Description: Human Readable Description
      Name: /path/of/param
      Tags:
      - {Key: ENVIRONMENT, Value: test}
      - {Key: RESOURCE_NAME, Value: broker_dns_addresses}
      - {Key: STACK_NAME, Value: example-service}
      Type: StringList
      Value: ValueOfParam