clb-4-layer-load-balancing.yml

ROSTemplateFormatVersion: '2015-09-01'
Description:
  zh-cn: 该模板用于在指定CLB实例下，添加两个ECS实例到VServerGroup，并配置TCP监听器进行健康检查，最后输出CLB的IP地址。要求ECS与CLB同VPC。
  en: This template is designed to add two ECS instances to the specified VServerGroup
    under a given CLB instance, configure a TCP listener for health checks, and ultimately
    outputs the IP address of the CLB. It is mandatory that the ECS instances and
    the CLB reside within the same VPC.
Parameters:
  LoadBalancerId:
    Type: String
    Label:
      en: CLB Instance ID
      zh-cn: CLB实例ID
    AssociationProperty: ALIYUN::SLB::Instance::InstanceId
  EcsInstanceIds:
    Type: CommaDelimitedList
    Label:
      en: ECS Instance ID List
      zh-cn: ECS实例ID列表
    Description:
      en: The ECS instance where the application service has been deployed, <span
        style="background:#E7E9EB;"><b>the ECS instance and the CLB instance need
        to be under the same VPC</b></span>.
      zh-cn: 已部署应用服务的ECS实例，<span style="background:#E7E9EB;"><b>ECS实例和CLB实例需要在同一个VPC下</b></span>。
    AssociationProperty: ALIYUN::ECS::Instance::InstanceId
    MinLength: 2
    MaxLength: 2
Resources:
  DS_LoadBalancers:
    Type: DATASOURCE::SLB::LoadBalancers
    Properties:
      LoadBalancerId:
        Ref: LoadBalancerId
  ServerGroup:
    Type: ALIYUN::SLB::VServerGroup
    Properties:
      LoadBalancerId:
        Ref: LoadBalancerId
      VServerGroupName: TrialTutorial
      BackendServers:
      - ServerId:
          Fn::Select:
          - 0
          - Ref: EcsInstanceIds
        Port: 80
      - ServerId:
          Fn::Select:
          - 1
          - Ref: EcsInstanceIds
        Port: 80
  Listener:
    Type: ALIYUN::SLB::Listener
    Properties:
      VServerGroupId:
        Ref: ServerGroup
      LoadBalancerId:
        Ref: LoadBalancerId
      Protocol: tcp
      ListenerPort: 80
      HealthCheck:
        Switch: 'on'
      Bandwidth: -1
      StartListener: true
Outputs:
  CLBIp:
    Description:
      en: The IpAddress of CLB.
      zh-cn: CLB的IP地址。
    Value:
      Fn::Jq:
      - First
      - .[0].Address
      - Fn::GetAtt:
        - DS_LoadBalancers
        - LoadBalancers
Metadata:
  ALIYUN::ROS::Interface:
    ParameterGroups:
    - Parameters:
      - LoadBalancerId
      - EcsInstanceIds
    TemplateTags:
    - acs:document:试用教程:四层CLB负载均衡