Fn::ListMerge

函数声明

• JSON

  {
    "Fn::ListMerge": [
      [
        "list_1_item_1",
        "list_1_item_2",
        ...
      ],
      [
        "list_2_item_1",
        "list_2_item_2",
        ...
      ],
       ...
    ]
  }

• YAML

  • 完整函数的语法。

    Fn::ListMerge:
      - - list_1_item_1
        - list_1_item_2
        - ...
      - - list_2_item_1
        - list_2_item_2
        - ...

  • 缩写形式。

    !ListMerge [[list_1_item_1, list_1_item_2, ...], [list_2_item_1, list_2_item_2, ...], ...]

参数信息

• list_1_item_1, list_1_imte_2, ...：将要合并的第一个列表。

• list_2_item_1, list_2_imte_2, ...：将要和第一个列表合并的列表。

使用示例

把两个ECS组挂载到同一个负载均衡实例上。

ROSTemplateFormatVersion: '2015-09-01'
Resources:
  LoadBalancer:
    Type: ALIYUN::SLB::LoadBalancer
    Properties:
      LoadBalancerName: ros
      AddressType: internet
      InternetChargeType: paybybandwidth
BackendServer1:
  Type: ALIYUN::ECS::InstanceGroup
  Properties:
    ImageId: m-2ze9uqi7wo61hwep****
    InstanceType: ecs.t1.small
    SecurityGroupId: sg-2ze8yxgempcdsq3i****
    MaxAmount: 1
    MinAmount: 1
BackendServer2:
  Type: ALIYUN::ECS::InstanceGroup
  Properties:
    ImageId: m-2ze9uqi7wo61hwep****
    InstanceType: ecs.t1.small
    SecurityGroupId: sg-2ze8yxgempcdsq3i****
    MaxAmount: 1
    MinAmount: 1
Attachment:
  Type: ALIYUN::SLB::BackendServerAttachment
  Properties:
    LoadBalancerId: !Ref LoadBalancer
  BackendServerList: !ListMerge [!GetAtt BackendServer1.InstanceIds, !GetAtt BackendServer2.InstanceIds]

支持的函数

• Fn::Base64Encode

• Fn::GetAtt

• Fn::Join

• Fn::Select

• Ref

• Fn::If