nlb-4-layer-load-balancing.yml

ROSTemplateFormatVersion: '2015-09-01'
Description:
  zh-cn: 创建NLB服务器组，配置两台ECS实例的TCP负载均衡，监听80端口，提供健康检查与自动权重管理，输出NLB DNS名称。
  en: Create an NLB server group, configure TCP load balancing for two ECS instances,
    with the listener set on port 80, enabling health checks and automatic weight
    management, and output the NLB DNS name.
Parameters:
  LoadBalancerId:
    Type: String
    Label:
      en: NLB Instance ID
      zh-cn: NLB实例ID
    AssociationProperty: ALIYUN::NLB::LoadBalancer::LoadBalancerId
  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 NLB 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NLB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::NLB::LoadBalancers
    Properties:
      LoadBalancerIds:
      - Ref: LoadBalancerId
  ServerGroup:
    Type: ALIYUN::NLB::ServerGroup
    Properties:
      VpcId:
        Fn::Jq:
        - First
        - .[0].VpcId
        - Fn::GetAtt:
          - DS_LoadBalancers
          - LoadBalancers
      ServerGroupType: Instance
      Protocol: TCP
      ServerGroupName: TrialTutorial
      Scheduler: Wrr
      Servers:
      - ServerType: Ecs
        ServerId:
          Fn::Select:
          - 0
          - Ref: EcsInstanceIds
        Port: 80
        Weight: 100
      - ServerType: Ecs
        ServerId:
          Fn::Select:
          - 1
          - Ref: EcsInstanceIds
        Port: 80
        Weight: 100
      HealthCheckConfig:
        HttpCheckMethod: GET
        HealthCheckType: Tcp
        HealthCheckInterval: 10
        UnhealthyThreshold: 2
        HealthyThreshold: 2
  Listener:
    Type: ALIYUN::NLB::Listener
    Properties:
      ServerGroupId:
        Ref: ServerGroup
      LoadBalancerId:
        Ref: LoadBalancerId
      ListenerProtocol: TCP
      ListenerPort: 80
      Enable: true
Outputs:
  NlbDnsName:
    Description:
      en: DNS name of the NLB instance.
      zh-cn: NLB实例的DNS名称。
    Value:
      Fn::Jq:
      - First
      - .[0].DNSName
      - Fn::GetAtt:
        - DS_LoadBalancers
        - LoadBalancers
Metadata:
  ALIYUN::ROS::Interface:
    ParameterGroups:
    - Parameters:
      - LoadBalancerId
      - EcsInstanceIds
    TemplateTags:
    - acs:document:试用教程:实现IPv4服务的四层负载均衡