spinnaker-deployment-container-instances.yml

AWSTemplateFormatVersion: '2010-09-09'
Description: EC2 ECS cluster running containers in a private subnet. Supports
             public facing load balancers, private internal load balancers, and
             both internal and external service discovery namespaces.
Parameters:
  VPCStackName:
    Type: String
    Default: SpinnakerVPC
    Description: The name of the VPC stack to add these container instances to.
  LBStackName:
    Type: String
    Default: spinnaker-ecs-ec2-demo
    Description: The name of the load balancer stack that will target tasks on these container instances.
  InstanceType:
    Description: EC2 instance type
    Type: String
    Default: t2.medium
    Description: Class of EC2 instance used to host containers. Choose t2 for testing, m5 for general purpose, c5 for CPU intensive services, and r5 for memory intensive services
    AllowedValues: [ t2.micro, t2.small, t2.medium, t2.large, t2.xlarge, t2.2xlarge,
     m5.large, m5.xlarge, m5.2large, m5.4xlarge, m5.12xlarge, m5.24large,
     c5.large, c5.xlarge, c5.2xlarge, c5.4xlarge, c5.9xlarge, c5.18xlarge,
     r5.large, r5.xlarge, r5.2xlarge, r5.4xlarge, r5.12xlarge, r5.24xlarge ]
    ConstraintDescription: Please choose a valid instance type.
  DesiredCapacity:
    Type: Number
    Default: '3'
    Description: Number of EC2 instances to launch in your ECS cluster.
  MaxSize:
    Type: Number
    Default: '6'
    Description: Maximum number of EC2 instances that can be launched in your ECS cluster.
  ECSAMI:
    Description: AMI ID
    Type: AWS::SSM::Parameter::Value<AWS::EC2::Image::Id>
    Default: /aws/service/ecs/optimized-ami/amazon-linux-2/recommended/image_id
    Description: The Amazon Machine Image ID used for the cluster, leave it as the default value to get the latest AMI

Resources:
  ContainerInstances:
    Type: AWS::AutoScaling::LaunchConfiguration
    Properties:
      ImageId: !Ref 'ECSAMI'
      SecurityGroups:
        - Fn::ImportValue: !Sub ${LBStackName}:ContainerSecurityGroup
      InstanceType: !Ref 'InstanceType'
      IamInstanceProfile: SpinnakerECSContainerInstances
      UserData:
        Fn::Base64: !Sub |
          #!/bin/bash -xe
          echo ECS_CLUSTER=spinnaker-deployment-cluster >> /etc/ecs/ecs.config
          yum install -y aws-cfn-bootstrap
          /opt/aws/bin/cfn-signal -e $? --stack ${AWS::StackName} --resource ECSAutoScalingGroup --region ${AWS::Region}

  ECSAutoScalingGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      VPCZoneIdentifier:
        - Fn::ImportValue: !Sub ${VPCStackName}:PublicSubnetOne
        - Fn::ImportValue: !Sub ${VPCStackName}:PublicSubnetTwo
      LaunchConfigurationName: !Ref 'ContainerInstances'
      MinSize: '1'
      MaxSize: !Ref 'MaxSize'
      DesiredCapacity: !Ref 'DesiredCapacity'
    CreationPolicy:
      ResourceSignal:
        Timeout: PT15M
    UpdatePolicy:
      AutoScalingReplacingUpdate:
        WillReplace: 'true'