在 Cloudformation 中创建 Application Load Balancer 时出错...XXXXX 必须采用 ARN 格式

Error while creating Application Load Balancer in Cloudformation... XXXXX must be in ARN format

使用 AWS CloudFormation 服务,我尝试在 2 个 EC2 实例上创建应用程序弹性负载均衡器,但在创建侦听器 [AWS::ElasticLoadBalancingV2::Listener] 时出现错误,如下所示:

"AELB-ElasticLoadBa-XDTNTTXRZMC8' must be in ARN format (Service: AmazonElasticLoadBalancingV2; Status Code: 400; Error Code: ValidationError; Request ID: 9b18bb79-9e58-11e8-9b70-c9b2be714e80)"

我参考了 aws 代码模板并添加了下面的代码,我是否遗漏了什么?

ElasticLoadBalancer:
Type: 'AWS::ElasticLoadBalancing::LoadBalancer'
Properties:
  Instances: [!Ref 'webServer1', !Ref 'webServer2']  
  CrossZone: 'true'
  Listeners:
  - LoadBalancerPort: '80'
    InstancePort: '80'
    Protocol: HTTP
  Subnets:
    - !Ref pubSubnet
  SecurityGroups: 
    - !Ref LoadBalancerSecurityGroup
  HealthCheck:
    Target: HTTP:80/
    HealthyThreshold: '3'
    UnhealthyThreshold: '5'
    Interval: '30'
    Timeout: '5'

TargetGroupService1: 
Type: 'AWS::ElasticLoadBalancingV2::TargetGroup'
Properties: 
  Name: 
    'Fn::Join': 
      - '-'
      - - Ref: 'AWS::StackName'
        - 'TargetGroupService1'

  Port: 10
  Protocol: HTTP
  #HealthCheckPath: /service1
  Targets:
  - Id:
      Ref: webServer1
    Port: 80
  VpcId: !Ref myDemoVPC

TargetGroupService2: 
Type: 'AWS::ElasticLoadBalancingV2::TargetGroup'
Properties: 
  Name: 
    'Fn::Join': 
      - '-'
      - - Ref: 'AWS::StackName'
        - 'TargetGroupService2'

  Port: 10
  Protocol: HTTP
  #HealthCheckPath: /service2
  Targets:
  - Id:
      Ref: webServer2
    Port: 80
  VpcId: !Ref myDemoVPC

Listener:
Type: 'AWS::ElasticLoadBalancingV2::Listener'
Properties:
  DefaultActions:
  - Type: forward
    TargetGroupArn: !Ref TargetGroupService1
  LoadBalancerArn: !Ref ElasticLoadBalancer
  Port: '80'
  Protocol: HTTP

ListenerRuleService1:
Type: 'AWS::ElasticLoadBalancingV2::ListenerRule'
Properties:
  Actions:
    - Type: forward
      TargetGroupArn: !Ref TargetGroupService1
  Conditions:
  - Field: path-pattern
    Values:
    - "/service1"
  ListenerArn: !Ref Listener
  Priority: 1

ListenerRuleService2:
Type: 'AWS::ElasticLoadBalancingV2::ListenerRule'
Properties:
  Actions:
    - Type: forward
      TargetGroupArn: !Ref TargetGroupService2
  Conditions:
  - Field: path-pattern
    Values:
    - "/service2"
  ListenerArn: !Ref Listener
  Priority: 2

您使用了错误的 cloudformation 资源。应用程序负载均衡器的 TypeAWS::ElasticLoadBalancingV2::LoadBalancer。注意 V2。您正在使用的那个创建了一个经典的负载均衡器。

您收到的错误是由于经典 LB 和应用程序 LB 之间 Ref 函数的 return 值不同所致。

当您指定:

LoadBalancerArn: !Ref ElasticLoadBalancer

RefClassic LB returns 资源名称(AELB-ElasticLoadBa-XDTNTTXRZMC8)而 Ref ALB returns 资源 Arn 是什么 V2听众期望 LoadBalancerArn 属性。

将逻辑名称为 ElasticLoadBalancer 的资源替换为具有描述的适当属性的 V2 负载平衡器 here 应该可以解决您的问题。