在CloudFormation中添加多个LoadBalancers背后的实例？

Question

我试图找到一种方法将ec2节点添加到两个负载均衡器，但我没有找到一个理智的方法来做到这一点。我认为下面的代码可以让我这样做，但是没有得到我预期的结果

请注意，此代码被高度剥离以仅显示LB部分。

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": " App Demo / Jd / 01042016",
  "Parameters": {
    "LoadBalancers": {
      "Description": "Please refer the LoadBalancerNames which you want the instances to be registered to",
      "Type": "List<AWS::EC2::LoadBalancers::LoadBalancerNames>",
      "Default": "web-app-demo-ext,web-api-demo-ext"
    }
  },
  "Resources": {
    "AppAutoScalingGroup": {
      "Type": "AWS::AutoScaling::AutoScalingGroup",
      "Properties": {
        "AvailabilityZones": {
          "Ref": "AZs"
        },
        "LoadBalancerNames": [{
          "Ref": "LoadBalancers"
        }]
      }
    }
  }
}

我希望看到一个列表，我可以添加多个LB，但我却看到了一个正常的输入框（字符串）

添加一些萤火虫hackery图像....

预期结果

实际发生了什么

更新

在使用Cloud Designer捏造后，我认为"Type": "List<AWS::EC2::LoadBalancers::LoadBalancerNames>"不正确，应该是"Type": "List<AWS::ElasticLoadBalancing::LoadBalancer>"

这仍然不会作为列表传播

Answer 1

想出来。您将需要多个参考。原因是因为"LoadBalancerNames"键可以采用多个引用，如："LoadBalancerNames": { "Foo", "Bar" }

真的希望这可以帮助别人，因为它让我头疼了好几天：）

{
  ................
  "Parameters": {
    .......
    "LoadBalancerApp": {
      "Description": "Please refer the LoadBalancerNames (APP) which you want the instances to be registered to",
      "Type": "String",
      "Default": "web-app-demo-ext"
    },
    "LoadBalancerApi": {
      "Description": "Please refer the LoadBalancerNames (API) which you want the instances to be registered to",
      "Type": "String",
      "Default": "web-api-demo-ext"
    },
    .......
  },
  "Resources": {
    ........
    "AppnameAutoScalingGroup": {
      "Type": "AWS::AutoScaling::AutoScalingGroup",
      "Properties": {
        "AvailabilityZones": {
          "Ref": "AZs"
        },
        "LaunchConfigurationName": {
          "Ref": "AppnameLaunchConfig"
        },
        "LoadBalancerNames": [{
          "Ref": "LoadBalancerApp"
        }, {
          "Ref": "LoadBalancerApi"
        }],
    ..........
}

Answer 2

这不会为您提供所需的UI，但它允许您在单个参数中指定多个负载均衡器名称。

使用CommaDelimitedList作为参数类型。

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": " App Demo / Jd / 01042016",
  "Parameters": {
    "LoadBalancers": {
      "Description": "Please refer the LoadBalancerNames which you want the instances to be registered to",
      "Type": "CommaDelimitedList",
      "Default": "web-app-demo-ext,web-api-demo-ext"
    }
  },
  "Resources": {
    "AppAutoScalingGroup": {
      "Type": "AWS::AutoScaling::AutoScalingGroup",
      "Properties": {
        "AvailabilityZones": {
          "Ref": "AZs"
        },
        "LoadBalancerNames": {
          "Ref": "LoadBalancers"
        }
      }
    }
  }
}