"elb name longer than 32" 但只有 8 个

"elb name longer than 32" but only 8

我正在尝试使用 AWS cloudformation 创建一个带有 ALB 和 ECS 服务的堆栈,但我在 AWS::ECS::Service 上得到一个 CREATE_FAILED,即 elb name longer than 32

我不明白为什么 ECS 服务在 ALB 本身处于 CREATE_COMPLETE 状态时抱怨 ELB 名称…

这是与我发送到 cloudformation 的 ALB 创建相关的 JSON:

    "loadBalancer" : {
      "Type": "AWS::ElasticLoadBalancingV2::LoadBalancer",
      "Properties": {
        "Name": "test-alb",
        "Scheme" : "internal",
        "Subnets" : [
          "subnet-b8217295",
          "subnet-ddaad2b8",
          "subnet-6d71fb51"
        ],
        "LoadBalancerAttributes" : [
          { "Key" : "idle_timeout.timeout_seconds", "Value" : "50" }
        ],
        "SecurityGroups": [
          { "Ref": "InstanceSecurityGroupOpenWeb" },
          { "Ref" : "InstanceSecurityGroupOpenFull" }
        ],
        "Tags" : [
          { "Key" : "key", "Value" : "value" },
          { "Key" : "key2", "Value" : "value2" }
        ]
      }
    }

这是与 ECS 服务创建相关的 JSON(引用上面定义的 ALB):

    "EcsService": {
      "Type":"AWS::ECS::Service",
      "Properties":{
        "Cluster":{
          "Ref": "EcsCluster"
        },
        "DesiredCount":"1",
        "DeploymentConfiguration":{
          "MaximumPercent":100,
          "MinimumHealthyPercent":0
        },
        "LoadBalancers": [
          {
            "ContainerName": "test-web",
            "ContainerPort":"80",
            "LoadBalancerName":{
              "Ref": "loadBalancer"
            }
          }
        ],
        "Role":{
          "Ref": "EcsServiceRole"
        },
        "TaskDefinition":{
          "Ref": "runWebServerTaskDefinition"
        }
      }
    }

正如你所见,我自己设置了 ALB 的名称,它只有 8 个字符,所以我真的不明白,你知道吗?

当您执行 "Ref" 时,它会 return 负载均衡器 ARN 而不是负载均衡器名称。您需要使用 GetAtt 获取负载均衡器名称

{ "Fn::GetAtt" : [ "loadBalancer", "LoadBalancerName" ] }