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# Konfigurasikan sumber daya Application Auto Scaling dengan CloudFormation
Bagian ini memberikan contoh CloudFormation templat untuk kebijakan penskalaan Application Auto Scaling dan tindakan terjadwal untuk sumber daya yang berbeda. AWS
**penting**
Ketika cuplikan Application Auto Scaling disertakan dalam template, Anda mungkin perlu mendeklarasikan dependensi pada sumber daya tertentu yang dapat diskalakan yang dibuat melalui template menggunakan atribut. `DependsOn` Ini menimpa paralelisme default dan mengarahkan CloudFormation untuk beroperasi pada sumber daya dalam urutan tertentu. Jika tidak, konfigurasi penskalaan mungkin diterapkan sebelum sumber daya telah disiapkan sepenuhnya.
Untuk informasi lebih lanjut, lihat [Atribut DependsOn](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-attribute-dependson.html).
**Topics**
+ [Membuat kebijakan penskalaan untuk armada AppStream](#w2aac11c41c15c19b9)
+ [Buat kebijakan penskalaan untuk klaster Aurora DB](#w2aac11c41c15c19c11)
+ [Membuat kebijakan penskalaan untuk tabel DynamoDB](#w2aac11c41c15c19c13)
+ [Membuat kebijakan penskalaan untuk layanan Amazon ECS (metrik: CPU dan memori rata-rata)](#w2aac11c41c15c19c15)
+ [Membuat kebijakan penskalaan untuk layanan Amazon ECS (metrik: jumlah permintaan rata-rata per target)](#w2aac11c41c15c19c17)
+ [Buat tindakan terjadwal dengan ekspresi cron untuk fungsi Lambda](#w2aac11c41c15c19c19)
+ [Membuat tindakan terjadwal dengan `at` ekspresi untuk Armada Spot](#w2aac11c41c15c19c21)
## Membuat kebijakan penskalaan untuk armada AppStream
Cuplikan ini menunjukkan cara membuat kebijakan dan menerapkannya ke [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-appstream-fleet.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-appstream-fleet.html)sumber daya menggunakan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html) [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html)Sumber daya mendeklarasikan target yang dapat diskalakan tempat kebijakan ini diterapkan. Application Auto Scaling dapat menskalakan jumlah instance armada minimal 1 instans dan maksimal 20 instans. Kebijakan tersebut menjaga pemanfaatan kapasitas rata-rata armada pada 75 persen, dengan periode cooldown scale-out dan scale-in 300 detik (5 menit).
Ini menggunakan fungsi `Fn::Join` dan `Rev` intrinsik untuk membangun `ResourceId` properti dengan nama logis dari `AWS::AppStream::Fleet` sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
### JSON
```
{
"Resources" : {
"ScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : 20,
"MinCapacity" : 1,
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/appstream.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_AppStreamFleet" },
"ServiceNamespace" : "appstream",
"ScalableDimension" : "appstream:fleet:DesiredCapacity",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"fleet",
{
"Ref" : "logicalName"
}
]
]
}
}
},
"ScalingPolicyAppStreamFleet" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : { "Fn::Sub" : "${AWS::StackName}-target-tracking-cpu75" },
"PolicyType" : "TargetTrackingScaling",
"ServiceNamespace" : "appstream",
"ScalableDimension" : "appstream:fleet:DesiredCapacity",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"fleet",
{
"Ref" : "logicalName"
}
]
]
},
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : 75,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "AppStreamAverageCapacityUtilization"
},
"ScaleInCooldown" : 300,
"ScaleOutCooldown" : 300
}
}
}
}
}
```
### YAML
```
---
Resources:
ScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 20
MinCapacity: 1
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/appstream.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_AppStreamFleet'
ServiceNamespace: appstream
ScalableDimension: appstream:fleet:DesiredCapacity
ResourceId: !Join
- /
- - fleet
- !Ref logicalName
ScalingPolicyAppStreamFleet:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: !Sub ${AWS::StackName}-target-tracking-cpu75
PolicyType: TargetTrackingScaling
ServiceNamespace: appstream
ScalableDimension: appstream:fleet:DesiredCapacity
ResourceId: !Join
- /
- - fleet
- !Ref logicalName
TargetTrackingScalingPolicyConfiguration:
TargetValue: 75
PredefinedMetricSpecification:
PredefinedMetricType: AppStreamAverageCapacityUtilization
ScaleInCooldown: 300
ScaleOutCooldown: 300
```
## Buat kebijakan penskalaan untuk klaster Aurora DB
Dalam cuplikan ini, Anda mendaftarkan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-rds-dbcluster.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-rds-dbcluster.html) [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html)Sumber daya menunjukkan bahwa cluster DB harus diskalakan secara dinamis untuk memiliki dari satu hingga delapan Replika Aurora. Anda juga menerapkan kebijakan penskalaan pelacakan target ke klaster menggunakan [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html)sumber daya.
Dalam konfigurasi ini, metrik standar `RDSReaderAverageCPUUtilization` digunakan untuk menyesuaikan klaster DB Aurora berdasarkan pemanfaatan CPU rata-rata sebesar 40 persen di seluruh Replika Aurora dalam klaster DB Aurora tersebut. Konfigurasi ini menyediakan periode pendinginan penskalaan ke dalam selama 10 menit dan periode pendinginan penskalaan ke luar selama 5 menit.
Contoh ini menggunakan fungsi `Fn::Sub` intrinsik untuk membangun `ResourceId` properti dengan nama logis `AWS::RDS::DBCluster` sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
### JSON
```
{
"Resources" : {
"ScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : 8,
"MinCapacity" : 1,
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/rds.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_RDSCluster" },
"ServiceNamespace" : "rds",
"ScalableDimension" : "rds:cluster:ReadReplicaCount",
"ResourceId" : { "Fn::Sub" : "cluster:${logicalName}" }
}
},
"ScalingPolicyDBCluster" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : { "Fn::Sub" : "${AWS::StackName}-target-tracking-cpu40" },
"PolicyType" : "TargetTrackingScaling",
"ServiceNamespace" : "rds",
"ScalableDimension" : "rds:cluster:ReadReplicaCount",
"ResourceId" : { "Fn::Sub" : "cluster:${logicalName}" },
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : 40,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "RDSReaderAverageCPUUtilization"
},
"ScaleInCooldown" : 600,
"ScaleOutCooldown" : 300
}
}
}
}
}
```
### YAML
```
---
Resources:
ScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 8
MinCapacity: 1
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/rds.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_RDSCluster'
ServiceNamespace: rds
ScalableDimension: rds:cluster:ReadReplicaCount
ResourceId: !Sub cluster:${logicalName}
ScalingPolicyDBCluster:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: !Sub ${AWS::StackName}-target-tracking-cpu40
PolicyType: TargetTrackingScaling
ServiceNamespace: rds
ScalableDimension: rds:cluster:ReadReplicaCount
ResourceId: !Sub cluster:${logicalName}
TargetTrackingScalingPolicyConfiguration:
TargetValue: 40
PredefinedMetricSpecification:
PredefinedMetricType: RDSReaderAverageCPUUtilization
ScaleInCooldown: 600
ScaleOutCooldown: 300
```
## Membuat kebijakan penskalaan untuk tabel DynamoDB
Cuplikan ini menunjukkan cara membuat kebijakan dengan tipe `TargetTrackingScaling` kebijakan dan menerapkannya ke [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-dynamodb-table.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-dynamodb-table.html)sumber daya menggunakan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html) [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html)Sumber daya menyatakan target yang dapat diskalakan yang diterapkan kebijakan ini, dengan minimal lima unit kapasitas tulis dan maksimum 15. Kebijakan penskalaan menskalakan throughput kapasitas tulis tabel untuk mempertahankan pemanfaatan target pada 50 persen berdasarkan metrik `DynamoDBWriteCapacityUtilization` yang sudah ditentukan sebelumnya.
Ini menggunakan fungsi `Fn::Join` dan `Ref` intrinsik untuk membangun `ResourceId` properti dengan nama logis dari `AWS::DynamoDB::Table` sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
**catatan**
Untuk informasi selengkapnya tentang cara membuat CloudFormation template untuk sumber daya DynamoDB, lihat [posting blog Cara menggunakan untuk mengonfigurasi penskalaan otomatis CloudFormation untuk tabel dan indeks Amazon DynamoDB di Blog Database](https://aws.amazon.com/blogs/database/how-to-use-aws-cloudformation-to-configure-auto-scaling-for-amazon-dynamodb-tables-and-indexes/). AWS
### JSON
```
{
"Resources" : {
"WriteCapacityScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : 15,
"MinCapacity" : 5,
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/dynamodb.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_DynamoDBTable" },
"ServiceNamespace" : "dynamodb",
"ScalableDimension" : "dynamodb:table:WriteCapacityUnits",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"table",
{
"Ref" : "logicalName"
}
]
]
}
}
},
"WriteScalingPolicy" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : "WriteScalingPolicy",
"PolicyType" : "TargetTrackingScaling",
"ScalingTargetId" : { "Ref" : "WriteCapacityScalableTarget" },
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : 50.0,
"ScaleInCooldown" : 60,
"ScaleOutCooldown" : 60,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "DynamoDBWriteCapacityUtilization"
}
}
}
}
}
}
```
### YAML
```
---
Resources:
WriteCapacityScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 15
MinCapacity: 5
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/dynamodb.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_DynamoDBTable'
ServiceNamespace: dynamodb
ScalableDimension: dynamodb:table:WriteCapacityUnits
ResourceId: !Join
- /
- - table
- !Ref logicalName
WriteScalingPolicy:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: WriteScalingPolicy
PolicyType: TargetTrackingScaling
ScalingTargetId: !Ref WriteCapacityScalableTarget
TargetTrackingScalingPolicyConfiguration:
TargetValue: 50.0
ScaleInCooldown: 60
ScaleOutCooldown: 60
PredefinedMetricSpecification:
PredefinedMetricType: DynamoDBWriteCapacityUtilization
```
## Membuat kebijakan penskalaan untuk layanan Amazon ECS (metrik: CPU dan memori rata-rata)
Cuplikan ini menunjukkan cara membuat kebijakan dan menerapkannya ke [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ecs-service.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ecs-service.html)sumber daya menggunakan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalingpolicy.html) [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html)Sumber daya mendeklarasikan target yang dapat diskalakan tempat kebijakan ini diterapkan. Application Auto Scaling dapat menskalakan jumlah tugas minimal 1 tugas dan maksimal 6.
Hal itu membuat dua kebijakan penskalaan dengan jenis kebijakan `TargetTrackingScaling`. Kebijakan yang digunakan untuk menskalakan layanan ECS berdasarkan penggunaan rata-rata CPU dan memori layanan. Ini menggunakan fungsi `Fn::Join` dan `Ref` intrinsik untuk membangun `ResourceId` properti dengan nama logis dari [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ecs-cluster.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ecs-cluster.html)(`myContainerCluster`) dan `AWS::ECS::Service` (`myService`) sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
### JSON
```
{
"Resources" : {
"ECSScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : "6",
"MinCapacity" : "1",
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ecs.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_ECSService" },
"ServiceNamespace" : "ecs",
"ScalableDimension" : "ecs:service:DesiredCount",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"service",
{
"Ref" : "myContainerCluster"
},
{
"Fn::GetAtt" : [
"myService",
"Name"
]
}
]
]
}
}
},
"ServiceScalingPolicyCPU" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : { "Fn::Sub" : "${AWS::StackName}-target-tracking-cpu70" },
"PolicyType" : "TargetTrackingScaling",
"ScalingTargetId" : { "Ref" : "ECSScalableTarget" },
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : 70.0,
"ScaleInCooldown" : 180,
"ScaleOutCooldown" : 60,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "ECSServiceAverageCPUUtilization"
}
}
}
},
"ServiceScalingPolicyMem" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : { "Fn::Sub" : "${AWS::StackName}-target-tracking-mem90" },
"PolicyType" : "TargetTrackingScaling",
"ScalingTargetId" : { "Ref" : "ECSScalableTarget" },
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : 90.0,
"ScaleInCooldown" : 180,
"ScaleOutCooldown" : 60,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "ECSServiceAverageMemoryUtilization"
}
}
}
}
}
}
```
### YAML
```
---
Resources:
ECSScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 6
MinCapacity: 1
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ecs.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_ECSService'
ServiceNamespace: ecs
ScalableDimension: 'ecs:service:DesiredCount'
ResourceId: !Join
- /
- - service
- !Ref myContainerCluster
- !GetAtt myService.Name
ServiceScalingPolicyCPU:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: !Sub ${AWS::StackName}-target-tracking-cpu70
PolicyType: TargetTrackingScaling
ScalingTargetId: !Ref ECSScalableTarget
TargetTrackingScalingPolicyConfiguration:
TargetValue: 70.0
ScaleInCooldown: 180
ScaleOutCooldown: 60
PredefinedMetricSpecification:
PredefinedMetricType: ECSServiceAverageCPUUtilization
ServiceScalingPolicyMem:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: !Sub ${AWS::StackName}-target-tracking-mem90
PolicyType: TargetTrackingScaling
ScalingTargetId: !Ref ECSScalableTarget
TargetTrackingScalingPolicyConfiguration:
TargetValue: 90.0
ScaleInCooldown: 180
ScaleOutCooldown: 60
PredefinedMetricSpecification:
PredefinedMetricType: ECSServiceAverageMemoryUtilization
```
## Membuat kebijakan penskalaan untuk layanan Amazon ECS (metrik: jumlah permintaan rata-rata per target)
Contoh berikut menerapkan kebijakan penskalaan pelacakan target dengan metrik `ALBRequestCountPerTarget` yang telah ditetapkan ke layanan ECS. Kebijakan ini digunakan untuk menambah kapasitas layanan ECS ketika jumlah permintaan per target (per menit) melebihi nilai target. Karena nilai `DisableScaleIn` diatur menjadi `true`, kebijakan pelacakan target tidak akan menghapus kapasitas dari target yang dapat diskalakan.
Ini menggunakan fungsi `Fn::Join` dan `Fn::GetAtt` intrinsik untuk membangun `ResourceLabel` properti dengan nama logis dari [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticloadbalancingv2-loadbalancer.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticloadbalancingv2-loadbalancer.html)(`myLoadBalancer`) dan [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticloadbalancingv2-targetgroup.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-elasticloadbalancingv2-targetgroup.html)(`myTargetGroup`) sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
Properti `MaxCapacity` dan `MinCapacity` pada target yang dapat diskalakan dan properti `TargetValue` nilai parameter referensi kebijakan penskalaan yang Anda teruskan ke templat saat membuat atau memperbarui tumpukan.
### JSON
```
{
"Resources" : {
"ECSScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : { "Ref" : "MaxCount" },
"MinCapacity" : { "Ref" : "MinCount" },
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ecs.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_ECSService" },
"ServiceNamespace" : "ecs",
"ScalableDimension" : "ecs:service:DesiredCount",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"service",
{
"Ref" : "myContainerCluster"
},
{
"Fn::GetAtt" : [
"myService",
"Name"
]
}
]
]
}
}
},
"ServiceScalingPolicyALB" : {
"Type" : "AWS::ApplicationAutoScaling::ScalingPolicy",
"Properties" : {
"PolicyName" : "alb-requests-per-target-per-minute",
"PolicyType" : "TargetTrackingScaling",
"ScalingTargetId" : { "Ref" : "ECSScalableTarget" },
"TargetTrackingScalingPolicyConfiguration" : {
"TargetValue" : { "Ref" : "ALBPolicyTargetValue" },
"ScaleInCooldown" : 180,
"ScaleOutCooldown" : 30,
"DisableScaleIn" : true,
"PredefinedMetricSpecification" : {
"PredefinedMetricType" : "ALBRequestCountPerTarget",
"ResourceLabel" : {
"Fn::Join" : [
"/",
[
{
"Fn::GetAtt" : [
"myLoadBalancer",
"LoadBalancerFullName"
]
},
{
"Fn::GetAtt" : [
"myTargetGroup",
"TargetGroupFullName"
]
}
]
]
}
}
}
}
}
}
}
```
### YAML
```
---
Resources:
ECSScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: !Ref MaxCount
MinCapacity: !Ref MinCount
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ecs.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_ECSService'
ServiceNamespace: ecs
ScalableDimension: 'ecs:service:DesiredCount'
ResourceId: !Join
- /
- - service
- !Ref myContainerCluster
- !GetAtt myService.Name
ServiceScalingPolicyALB:
Type: AWS::ApplicationAutoScaling::ScalingPolicy
Properties:
PolicyName: alb-requests-per-target-per-minute
PolicyType: TargetTrackingScaling
ScalingTargetId: !Ref ECSScalableTarget
TargetTrackingScalingPolicyConfiguration:
TargetValue: !Ref ALBPolicyTargetValue
ScaleInCooldown: 180
ScaleOutCooldown: 30
DisableScaleIn: true
PredefinedMetricSpecification:
PredefinedMetricType: ALBRequestCountPerTarget
ResourceLabel: !Join
- '/'
- - !GetAtt myLoadBalancer.LoadBalancerFullName
- !GetAtt myTargetGroup.TargetGroupFullName
```
## Buat tindakan terjadwal dengan ekspresi cron untuk fungsi Lambda
Cuplikan ini mendaftarkan konkurensi yang disediakan untuk fungsi alias () bernama menggunakan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-lambda-alias.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-lambda-alias.html) Hal itu juga membuat tindakan terjadwal dengan jadwal berulang menggunakan ekspresi cron. Zona waktu untuk jadwal berulang adalah UTC.
Ini menggunakan fungsi `Ref` intrinsik `Fn::Join` dan intrinsik di `RoleARN` properti untuk menentukan ARN dari peran terkait layanan. Ini menggunakan fungsi `Fn::Sub` intrinsik untuk membangun `ResourceId` properti dengan nama logis dari [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-lambda-function.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-lambda-function.html)atau [https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-function.html](https://docs.aws.amazon.com/serverless-application-model/latest/developerguide/sam-resource-function.html)sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
**catatan**
Anda tidak dapat mengalokasikan konkurensi yang disediakan pada alias yang menunjuk ke versi () yang tidak dipublikasikan. `$LATEST`
Untuk informasi selengkapnya tentang cara membuat CloudFormation template untuk sumber daya Lambda, lihat posting blog [Menjadwalkan Konkurensi Penyediaan AWS Lambda untuk](https://aws.amazon.com/blogs/compute/scheduling-aws-lambda-provisioned-concurrency-for-recurring-peak-usage/) penggunaan puncak berulang di Blog Komputasi. AWS
### JSON
```
{
"ScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : 250,
"MinCapacity" : 0,
"RoleARN" : {
"Fn::Join" : [
":",
[
"arn:aws:iam:",
{
"Ref" : "AWS::AccountId"
},
"role/aws-service-role/lambda.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_LambdaConcurrency"
]
]
},
"ServiceNamespace" : "lambda",
"ScalableDimension" : "lambda:function:ProvisionedConcurrency",
"ResourceId" : { "Fn::Sub" : "function:${logicalName}:BLUE" },
"ScheduledActions" : [
{
"ScalableTargetAction" : {
"MinCapacity" : "250"
},
"ScheduledActionName" : "my-scale-out-scheduled-action",
"Schedule" : "cron(0 18 * * ? *)",
"EndTime" : "2022-12-31T12:00:00.000Z"
}
]
}
}
}
```
### YAML
```
ScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 250
MinCapacity: 0
RoleARN: !Join
- ':'
- - 'arn:aws:iam:'
- !Ref 'AWS::AccountId'
- role/aws-service-role/lambda.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_LambdaConcurrency
ServiceNamespace: lambda
ScalableDimension: lambda:function:ProvisionedConcurrency
ResourceId: !Sub function:${logicalName}:BLUE
ScheduledActions:
- ScalableTargetAction:
MinCapacity: 250
ScheduledActionName: my-scale-out-scheduled-action
Schedule: 'cron(0 18 * * ? *)'
EndTime: '2022-12-31T12:00:00.000Z'
```
## Membuat tindakan terjadwal dengan `at` ekspresi untuk Armada Spot
Cuplikan ini menunjukkan cara membuat dua tindakan terjadwal yang terjadi hanya sekali untuk [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ec2-spotfleet.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-ec2-spotfleet.html)sumber daya yang menggunakan sumber daya. [https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-applicationautoscaling-scalabletarget.html) Zona waktu untuk setiap tindakan terjadwal satu kali adalah UTC.
Ini menggunakan fungsi `Fn::Join` dan `Ref` intrinsik untuk membangun `ResourceId` properti dengan nama logis dari `AWS::EC2::SpotFleet` sumber daya yang ditentukan dalam template yang sama. Untuk informasi lebih lanjut, lihat Referensi [fungsi intrinsik](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/intrinsic-function-reference.html).
**catatan**
Permintaan Armada Spot harus memiliki jenis permintaan `maintain`. Penskalaan otomatis tidak didukung untuk permintaan tipe , atau blok Spot.
### JSON
```
{
"Resources" : {
"SpotFleetScalableTarget" : {
"Type" : "AWS::ApplicationAutoScaling::ScalableTarget",
"Properties" : {
"MaxCapacity" : 0,
"MinCapacity" : 0,
"RoleARN" : { "Fn::Sub" : "arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ec2.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_EC2SpotFleetRequest" },
"ServiceNamespace" : "ec2",
"ScalableDimension" : "ec2:spot-fleet-request:TargetCapacity",
"ResourceId" : {
"Fn::Join" : [
"/",
[
"spot-fleet-request",
{
"Ref" : "logicalName"
}
]
]
},
"ScheduledActions" : [
{
"ScalableTargetAction" : {
"MaxCapacity" : "10",
"MinCapacity" : "10"
},
"ScheduledActionName" : "my-scale-out-scheduled-action",
"Schedule" : "at(2022-05-20T13:00:00)"
},
{
"ScalableTargetAction" : {
"MaxCapacity" : "0",
"MinCapacity" : "0"
},
"ScheduledActionName" : "my-scale-in-scheduled-action",
"Schedule" : "at(2022-05-20T21:00:00)"
}
]
}
}
}
}
```
### YAML
```
---
Resources:
SpotFleetScalableTarget:
Type: AWS::ApplicationAutoScaling::ScalableTarget
Properties:
MaxCapacity: 0
MinCapacity: 0
RoleARN:
Fn::Sub: 'arn:aws:iam::${AWS::AccountId}:role/aws-service-role/ec2.application-autoscaling.amazonaws.com/AWSServiceRoleForApplicationAutoScaling_EC2SpotFleetRequest'
ServiceNamespace: ec2
ScalableDimension: 'ec2:spot-fleet-request:TargetCapacity'
ResourceId: !Join
- /
- - spot-fleet-request
- !Ref logicalName
ScheduledActions:
- ScalableTargetAction:
MaxCapacity: 10
MinCapacity: 10
ScheduledActionName: my-scale-out-scheduled-action
Schedule: 'at(2022-05-20T13:00:00)'
- ScalableTargetAction:
MaxCapacity: 0
MinCapacity: 0
ScheduledActionName: my-scale-in-scheduled-action
Schedule: 'at(2022-05-20T21:00:00)'
```