如何修复CloudFormation错误 "所提供的负载均衡器可能无效"。请确保它们存在，并再次尝试

Question

当我尝试使用应用程序负载均衡器创建自动规模组时，使用以下云表单 yml 文件。

    LoadBalancer: 
      Type: AWS::ElasticLoadBalancingV2::LoadBalancer
      Properties: 
        Type: application
        Subnets: 
          Ref: VPCZoneIdentifier  

    AutoScalingGroup:
      Type: AWS::AutoScaling::AutoScalingGroup
      DependsOn: LoadBalancer
      Properties:
        AvailabilityZones: 
          Ref: "AvailabilityZones"
        Cooldown: 120
        DesiredCapacity:
          Ref: DesiredCapacityASG
        LaunchConfigurationName: 
          Ref: LaunchConfiguration
        MaxSize:
          Ref: MaxSizeASG
        MinSize:
          Ref: MinSizeASG
        LoadBalancerNames: 
          - Ref: "LoadBalancer"
        TargetGroupARNs:
          - !Ref TargetGroup

我收到一个错误信息："所提供的负载均衡器可能无效。请确保它们存在，然后再试。(服务。AmazonAutoScaling; Status Code: 400;错误代码：ValidationError;请求ID：)"。ValidationError; Request ID:)"。

Answer 1

发生这个错误是因为你使用了 LoadBalancerNames 应用负载均衡器，如上所述 此处

修复方法：删除 LoadBalancerNames 并保持 目标组ARNs 中的属性

LoadBalancerNames： - Ref："LoadBalancer"

因此，yml文件将像.NET一样。

    AutoScalingGroup:
      Type: AWS::AutoScaling::AutoScalingGroup
      DependsOn: LoadBalancer
      Properties:
        AvailabilityZones: 
          Ref: "AvailabilityZones"
        Cooldown: 120
        DesiredCapacity:
          Ref: DesiredCapacityASG
        LaunchConfigurationName: 
          Ref: LaunchConfiguration
        MaxSize:
          Ref: MaxSizeASG
        MinSize:
          Ref: MinSizeASG
        TargetGroupARNs:
          - !Ref TargetGroup