如何在Pulumi中使用逐步扩展策略设置Fargate服务自动扩展？

如何解决如何在Pulumi中使用逐步扩展策略设置Fargate服务自动扩展？

我正在尝试基于CloudWatch Alarm（名称空间-AWS / SQS，指标名称-近似NumberOfMessagesVisible）在AWS ECS中自动缩放Fargate服务。我设法在AWS控制台中做到了这一点，但没有通过代码（在Pulumi中）完成。

我对代码的建议如下：

const vpc = new awsx.ec2.Vpc("vpc",{
  subnets: [{ type: "public" }],});

const my_cluster = new awsx.ecs.Cluster("my-cluster",{ vpc });

const task = new awsx.ecs.FargateTaskDeFinition(...)

const my_fargateService = new awsx.ecs.FargateService(
  "my-fargateService",{
    cluster: my_cluster,taskDeFinition: task,desiredCount: 0,}
);

const sqs_queue = new aws.sqs.Queue(
  "fargateServiceQueque"
);

const autoscaling_Policy1 = new aws.autoscaling.Policy("autoscaling_Policy1",{
  policyType: "StepScaling",adjustmentType: "ExactCapacity",stepAdjustments: [{
    metricIntervalUpperBound: 1,scalingAdjustment: 0
  }],// I think problem here
  autoscalingGroupName: autoScalingGroupFromFargateService.name // ???
});

const sqs_less_than_1 = new aws.cloudwatch.MetricAlarm("sqs_less_than_1_message_visible",{
  comparisonoperator: "LessthanThreshold",evaluationPeriods: "2",metricName: "approximateNumberOfMessagesVisible",namespace: "AWS/SQS",period: "120",statistic: "Maximum",threshold: "1",dimensions: {
      QueueName: sqs_queue.name,},alarmDescription: "This metric monitors number of messages in sqs queue",alarmActions: [] // I think it should be -> [autoscaling_Policy1.arn],});

问题-我不知道如何从my_fargateService检索自动缩放组（“ autoScalingGroupFromFargateService.name”）。

在AWS控制台中，如下图所示：

我得到这个结果：