模板名稱

ACS-ECS-RemoveFromSLBWhenPreemptibleInstanceInterrupted 將即將釋放的搶占式實例從其所在負載均衡后端服務器列表移除

立即執行

模板描述

當前地域的搶占式實例即將釋放時，將實例從其所在負載均衡后端服務器列表移除

模板類型

自動化

所有者

Alibaba Cloud

輸入參數

輸出參數

執行此模板需要的權限策略

{
    "Version": "1",
    "Statement": [
        {
            "Action": [
                "slb:DescribeLoadBalancers",
                "slb:RemoveBackendServers",
                "slb:SetBackendServers"
            ],
            "Resource": "*",
            "Effect": "Allow"
        }
    ]
}

詳情

ACS-ECS-RemoveFromSLBWhenPreemptibleInstanceInterrupted詳情

模板內容

FormatVersion: OOS-2019-06-01
Description:
  en: Remove backend servers from SLB when preemptible instance of current region is about to be interrupted
  zh-cn: 當前地域的搶占式實例即將釋放時，將實例從其所在負載均衡后端服務器列表移除
  name-en: ACS-ECS-RemoveFromSLBWhenPreemptibleInstanceInterrupted
  name-zh-cn: 將即將釋放的搶占式實例從其所在負載均衡后端服務器列表移除
  categories:
    - event-trigger
Parameters:
  OOSAssumeRole:
    Label:
      en: OOSAssumeRole
      zh-cn: OOS扮演的RAM角色
    Type: String
    Default: ''
  tags:
    Type: Json
    Label:
      en: Tags
      zh-cn: 實例的標簽
    AssociationProperty: Tags
    Default: []
RamRole: '{{OOSAssumeRole}}'
Tasks:
  - Name: eventTrigger
    Description:
      en: Monitor the preemptible instance interruption event
      zh-cn: 監控搶占式實例的釋放事件
    Action: 'ACS::EventTrigger'
    Properties:
      Tags: '{{ tags }}'
      Product: ECS
      Name:
        - 'Instance:PreemptibleInstanceInterruption'
      Level:
        - WARN
      Content:
        action: delete
      RegionId:
        - '{{ ACS::RegionId }}'
    Outputs:
      instanceId:
        ValueSelector: .content.instanceId
        Type: String
  - Name: describeSLB
    Description:
      en: Views the SLB id of preemptible instance interrupted
      zh-cn: 查詢釋放的搶占實例所在負載均衡ID
    Action: 'ACS::ExecuteAPI'
    Properties:
      Service: SLB
      API: DescribeLoadBalancers
      Parameters:
        ServerId: '{{ eventTrigger.instanceId }}'
    Outputs:
      loadBalancerId:
        ValueSelector: .LoadBalancers.LoadBalancer[0].LoadBalancerId
        Type: String
  - Name: setBackendServers
    Description:
      en: Set the weight of interrupted instance zero on SLB
      zh-cn: 將釋放的實例在負載均衡上的權重設置為0
    Action: 'ACS::ExecuteAPI'
    Properties:
      Service: SLB
      API: SetBackendServers
      Parameters:
        BackendServers:
          - ServerId: '{{ eventTrigger.instanceId }}'
            Weight: 0
        LoadBalancerId: '{{describeSLB.loadBalancerId}}'
  - Name: waitConnectionExpire
    Description:
      en: Wait created connection expire
      zh-cn: 等待已經建立的網絡連接斷開
    Action: 'ACS::Sleep'
    Properties:
      Duration: 'PT1M'
  - Name: removeBackendServers
    Description:
      en: Remove the interrupted instance from SLB backend servers list
      zh-cn: 將釋放的實例從負載均衡后端服務器列表上移除
    Action: 'ACS::ExecuteAPI'
    Properties:
      Service: SLB
      API: RemoveBackendServers
      Parameters:
        BackendServers:
          - ServerId: '{{ eventTrigger.instanceId }}'
            Weight: 0
        LoadBalancerId: '{{describeSLB.loadBalancerId}}'
Outputs:
  instanceId:
    Value: '{{ eventTrigger.instanceId }}'
    Type: String
Metadata:
  ALIYUN::OOS::Interface:
    ParameterGroups:
      - Parameters:
          - tags
        Label:
          default:
            zh-cn: 選擇標簽
            en: Select Tags
      - Parameters:
          - OOSAssumeRole
        Label:
          default:
            zh-cn: 高級選項
            en: Control Options