cloudformation autoscaling group add ALB - amazon-web-services

Question

I am using auto-scaling setting with CloudFormation. add ALB target.
How do I configure ALB(not classic LB) to use auto-scaling?
The ARN of the ALB target and my Templetes is as follows.
In the guide, should add Target ARN for ALB.
{
"AWSTemplateFormatVersion": "2010-09-09",
"Resources": {
"asgautotestgr": {
"Type": "AWS::AutoScaling::AutoScalingGroup",
"Properties": {
"AvailabilityZones": [
"ap-southeast-1a"
],
"Cooldown": "300",
"DesiredCapacity": "2",
"HealthCheckGracePeriod": "300",
"HealthCheckType": "EC2",
"MaxSize": "4",
"MinSize": "2",
"VPCZoneIdentifier": [ "subnet-3fe2c***" ],
"LaunchConfigurationName": {
"Ref": "lcautotest"
},
"LoadBalancerNames" : [ "arn:aws:elasticloadbalancing:ap-southeast-1:7****3:targetgroup/sgp-ALB/4*****2" ],
"MetricsCollection": [
{
"Granularity": "1Minute",
"Metrics": [
"GroupInServiceInstances",
"GroupMaxSize",
"GroupPendingInstances",
"GroupDesiredCapacity",
"GroupStandbyInstances",
"GroupTerminatingInstances",
"GroupMinSize",
"GroupTotalInstances"
]
}
],
"TerminationPolicies": [
"Default"
]
}
},
"lcautotest": {
"Type": "AWS::AutoScaling::LaunchConfiguration",
"Properties": {
"IamInstanceProfile" : "Cd***2",
"AssociatePublicIpAddress": true,
"ImageId": "ami-*****0",
"InstanceType": "t2.large",
"KeyName": "key",
"InstanceMonitoring": "true",
"SecurityGroups": [ "sg-6***" ],
"BlockDeviceMappings": [
{
"DeviceName": "/dev/sda1",
"Ebs": {
"SnapshotId": "snap-0e0edaa*6",
"VolumeSize": 60
}
}
]
}
}
},
"Description": ""
}
my ALB ARN is hear.
arn:aws:elasticloadbalancing:ap-southeast-1:7*****3:loadbalancer/app/ALB-sgp/9*****6
and ALB Target.
arn:aws:elasticloadbalancing:ap-southeast-1:7*****3:targetgroup/sgp-ALB/4*****2