@startuml Auto Scaling
'Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
'SPDX-License-Identifier: MIT (For details, see https://github.com/awslabs/aws-icons-for-plantuml/blob/master/LICENSE)

' Uncomment the line below for "dark mode" styling
'!$AWS_DARK = true

!define AWSPuml https://raw.githubusercontent.com/awslabs/aws-icons-for-plantuml/v23.1/dist
!include AWSPuml/AWSCommon.puml
!include AWSPuml/AWSSimplified.puml
!include AWSPuml/Compute/EC2AutoScaling.puml
!include AWSPuml/Compute/EC2Instance.puml
!include AWSPuml/Groups/AWSCloud.puml
!include AWSPuml/Groups/AvailabilityZone.puml
!include AWSPuml/Groups/VPC.puml
!include AWSPuml/Groups/AutoScalingGroup.puml
!include AWSPuml/NetworkingContentDelivery/VPCNATGateway.puml

skinparam rectangle<<hidden>> {
  shadowing false
  BackgroundColor transparent
  BorderColor transparent
}

!unquoted procedure LayoutRectangle($p_alias)
rectangle " " as $p_alias <<hidden>>
!endprocedure

AWSCloudGroup(cloud) {
  VPCGroup(vpc) {
    AvailabilityZoneGroup(az_2, "Availability Zone 2") {
      VPCNATGateway(az_2_nat_gateway, "NAT gateway", "")
      EC2Instance(az_2_ec2_1, "Instance", "")
      EC2Instance(az_2_ec2_2, "Instance", "")

      az_2_nat_gateway -[hidden]d- az_2_ec2_1
      az_2_ec2_1 -[hidden]d- az_2_ec2_2
    }

    LayoutRectangle(layout_rectangle) {
      EC2AutoScaling(ec2_auto_scaling, "Amazon EC2 Auto Scaling", "")
      AutoScalingGroupGroup(asg_1)
      AutoScalingGroupGroup(asg_2)

      ec2_auto_scaling -[hidden]d- asg_1
      asg_1 -[hidden]d- asg_2
    }

    AvailabilityZoneGroup(az_1, "Availability Zone 1") {
      VPCNATGateway(az_1_nat_gateway, "NAT gateway", "")
      EC2Instance(az_1_ec2_1, "Instance", "")
      EC2Instance(az_1_ec2_2, "Instance", "")

      az_1_nat_gateway -[hidden]d- az_1_ec2_1
      az_1_ec2_1 -[hidden]d- az_1_ec2_2
    }

    ec2_auto_scaling -[hidden]l- az_1_nat_gateway
    ec2_auto_scaling -[hidden]r- az_2_nat_gateway

    asg_1 -[dashed,$AWS_COLOR_SMILE]l- az_1_ec2_1
    asg_1 -[dashed,$AWS_COLOR_SMILE]r- az_2_ec2_1

    asg_2 -[dashed,$AWS_COLOR_SMILE]l- az_1_ec2_2
    asg_2 -[dashed,$AWS_COLOR_SMILE]r- az_2_ec2_2
  }
}
@enduml