ACS-ESS-AdjustScalingGroupInstanceCount.yml

FormatVersion: OOS-2019-06-01
Description:
  en: <p class="p">Adjust the number of instances in a scaling group by creating and executing scaling group rules. Description:</p>
    <ul class="ul">
    <li class="li">If the scaling group has been configured with the desired number of instances, when the number of instances in the scaling group is not equal to the expected number of instances, the auto scaling service will automatically scale to ensure that the number of instances in the scaling group is always maintained After the execution is complete, please go to the ESS console to view the adjustment results. </li>
    <li class="li">The number of cluster nodes after scaling down the nodes cannot be less than the minimum node requirements of the component, otherwise the scaling operation may return an error of code:IncorrectCapacity. </li>
    <li class="li">Please ensure that your account balance is greater than the cost of the newly purchased instance, otherwise an error of code:InvalidAccountStatus.NotEnoughBalance will be returned. </li>
    <li class="li">If it is multi-zone, please expand the multiple of the number of zones. </li>
    <li class="li">The payment method for the expanded ECS is pay-as-you-go. If necessary, customers need to Manual subcontracting yearly and monthly. </a></li>
    <li class="li"> There are two ways to scale down：scale down the specified number of ECS (<b>the number of ECS instance adjustments in the scaling group</b> is not 0), remove the specified ECS from the scaling group ( <b>The number of ECS instance adjustments in the scaling group</b> is 0 and the ECS to be removed is selected)</li>
    <li class="li">The scaling cannot be less than the number initially opened in the scaling group. </li>
    </ul>
    <p class="p">Adjust the number of instances in a scaling group by creating and executing scaling group rules. Description:</p>
    <ul class="ul">
    <li class="li">Adjust ACK cluster node pool<a href='https://help.aliyun.com/document_detail/160490.html?spm=5176.2020520152.help.dexternal.253916ddpJbWDl#title-mpp-3jj- oo3'>Expected number of nodes</a>, please read the linked document carefully and authorize the role AliyunOOSLifecycleHook4CSRole. </li>
    </ul>
  zh-cn: <p class="p">通过创建并执行伸缩组规则来调整伸缩组的实例数。说明：</p>
    <ul class="ul">
    <li class="li">如果伸缩组已配置期望实例数，当伸缩组内实例数不等于期望实例数时，弹性伸缩服务会自动进行扩缩容，确保伸缩组内始终保持该数量的实例数，执行完毕后请到ESS控制台查看调整结果。</li>
    <li class="li">缩容节点后的集群节点数量，不能小于组件最低节点要求，否则缩容操作可能会返回 code：IncorrectCapacity 的错误。</li>
    <li class="li">执行请确保您的账号余额大于新购实例的费用，否则会返回 code：InvalidAccountStatus.NotEnoughBalance 的错误。</li>
    <li class="li">如果是多可用区请扩容可用区数的倍数。</li>
    <li class="li">扩容的ECS付费方式为按量付费，如有需要，客户需要手动<a href="https://help.aliyun.com/document_detail/49884.html?spm=5176.2020520101.help.dexternal.6ecb4df5sxWQrt">转包年包月。</a></li>
    <li class="li">缩容有两种方式：缩容指定数量的ECS（<b>伸缩组ECS实例调整的数量</b>非0）、从伸缩组中移除指定的ECS（<b>伸缩组ECS实例调整的数量</b>为0且选择要移除的ECS）</li>
    <li class="li">缩容数量不能少于伸缩组内最开始开出来的数量。</li>
    </ul>
    <p class="p">调整ACK集群节点池<a href='https://help.aliyun.com/document_detail/160490.html?spm=5176.2020520152.help.dexternal.253916ddpJbWDl#title-mpp-3jj-oo3'>期望节点数</a>。说明：</p>
    <ul class="ul">
    <li class="li">请仔细阅读链接文档并授权角色AliyunOOSLifecycleHook4CSRole。</li>
    </ul>
  name-en: Elastic Scaling
  name-zh-cn: 弹性扩缩容
  categories:
    - elastic_manage
    - application_manage
    - computenest
Parameters:
  resourceType:
    Type: String
    Label:
      en: ResourceType
      zh-cn: 将要调整的资源类型
    AllowedValues:
      - ACK
      - ESS
    Default: ESS
  regionId:
    Type: String
    Label:
      en: RegionId
      zh-cn: 将要克隆的ECS实例所在地域
    AssociationProperty: RegionId
    Default: '{{ ACS::RegionId }}'
  scalingGroupId:
    Type: String
    Label:
      en: ScalingGroupId
      zh-cn: 伸缩组ID
    Default: ''
    AssociationProperty: ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId
    AssociationPropertyMetadata:
      RegionId: regionId
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ESS
  adjustmentType:
    Type: String
    Label:
      en: AdjustmentType
      zh-cn: 伸缩规则的调整方式
    AssociationPropertyMetadata:
      LocaleKey: ESSGroupAdjustmentType
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ESS
    AllowedValues:
      - ScaleOut
      - ScaleIn
      - TotalCapacity
    Default: ScaleOut
  adjustmentCount:
    Type: Number
    Label:
      en: AdjustmentCount
      zh-cn: 伸缩组ECS实例调整的数量
    MinValue: 0
    MaxValue: 100
    Default: 0
    AssociationPropertyMetadata:
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ESS
  instancesToBeRemoved:
    Type: Json
    Label:
      en: RemovedInstances
      zh-cn: 从伸缩组中移除的ECS实例
    Default:
      Type: ResourceIds
      ResourceIds: []
      RegionId: '{{ ACS::RegionId }}'
    AssociationProperty: Targets
    AssociationPropertyMetadata:
      ResourceType: ALIYUN::ECS::Instance
      RegionId: regionId
      Visible:
        Condition:
          Fn::And:
            - Fn::Equals:
                - '${resourceType}'
                - ESS
            - Fn::Equals:
                - '${adjustmentType}'
                - ScaleIn
            - Fn::Equals:
                - '${adjustmentCount}'
                - 0
  clusterId:
    Label:
      en: ClusterId
      zh-cn: 集群ID
    Type: String
    Default: ''
    AssociationProperty: ALIYUN::CS::Cluster::ClusterId
    AssociationPropertyMetadata:
      RegionId: ${regionId}
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ACK
  nodepoolId:
    Label:
      en: NodepoolId
      zh-cn: 节点池ID
    Type: String
    Default: ''
    AssociationProperty: ALIYUN::CS::Cluster::ClusterNodePool
    AssociationPropertyMetadata:
      RegionId: ${regionId}
      ClusterId: ${clusterId}
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ACK
  desiredSize:
    Label:
      en: DesiredSize
      zh-cn: 期望节点数
    Type: Number
    MinValue: 0
    MaxValue: 100
    Default: 0
    AssociationPropertyMetadata:
      Visible:
        Condition:
          Fn::Equals:
            - '${resourceType}'
            - ACK
  OOSAssumeRole:
    Label:
      en: OOSAssumeRole
      zh-cn: OOS扮演的RAM角色
    Type: String
    Default: ''
RamRole: '{{ OOSAssumeRole }}'
Tasks:
  - Name: chooseNextTaskByResourceType
    Action: 'ACS::Choice'
    Description:
      en: Choose next task by resource type
      zh-cn: 根据资源类型选择下一个任务
    Properties:
      DefaultTask: whetherToRemoveInstancesFromScalingGroup
      Choices:
        - When:
            Fn::Equals:
              - 'ACK'
              - '{{ resourceType }}'
          NextTask: getNodePoolDetail
  - Name: whetherToRemoveInstancesFromScalingGroup
    Action: 'ACS::Choice'
    Description:
      en: Choose next task by adjustment type
      zh-cn: 根据伸缩规则调整方式选择下一个任务
    Properties:
      DefaultTask: createScalingRule
      Choices:
        - When:
            Fn::And:
              - Fn::Equals:
                  - '{{adjustmentType}}'
                  - ScaleIn
              - Fn::Equals:
                  - '{{adjustmentCount}}'
                  - 0
          NextTask: getInstanceToBeRemoved
  - Name: getInstanceToBeRemoved
    Description:
      en: Get the ECS instance to be removed
      zh-cn: 获取待移除的ECS实例
    Action: ACS::SelectTargets
    Properties:
      ResourceType: ALIYUN::ECS::Instance
      RegionId: '{{ regionId }}'
      Filters:
        - '{{ instancesToBeRemoved }}'
    Outputs:
      instanceIds:
        Type: List
        ValueSelector: Instances.Instance[].InstanceId
  - Name: removeInstances
    Action: 'ACS::ExecuteAPI'
    OnSuccess: waitScalingActivityComplete
    When:
      Fn::Not:
        Fn::Equals:
          - '{{ getInstanceToBeRemoved.instanceIds }}'
          - []
    Description:
      en: Remove instances from scaling group
      zh-cn: 从伸缩组中移除ECS实例
    Properties:
      Service: ESS
      API: RemoveInstances
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingGroupId: '{{ scalingGroupId }}'
        InstanceIds: '{{ getInstanceToBeRemoved.instanceIds }}'
    Outputs:
      scalingActivityId:
        Type: String
        ValueSelector: .ScalingActivityId
  - Name: createScalingRule
    Action: 'ACS::ExecuteAPI'
    Description:
      en: Create a ScalingRule
      zh-cn: 创建伸缩规则
    Properties:
      Service: ESS
      API: CreateScalingRule
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingGroupId: '{{ scalingGroupId }}'
        ScalingRuleName: '{{ ACS::ExecutionId }}'
        AdjustmentType:
          Fn::If:
            - Fn::Equals:
                - 'TotalCapacity'
                - '{{ adjustmentType }}'
            - TotalCapacity
            - QuantityChangeInCapacity
        AdjustmentValue:
          Fn::If:
            - Fn::Equals:
                - ScaleIn
                - '{{ adjustmentType }}'
            - '-{{ adjustmentCount }}'
            - '{{ adjustmentCount }}'
    Outputs:
      scalingRuleAri:
        Type: String
        ValueSelector: ScalingRuleAri
      scalingRuleId:
        Type: String
        ValueSelector: ScalingRuleId
  - Name: executeScalingRule
    Description:
      en: Execute the ScalingRule
      zh-cn: 执行伸缩规则
    OnError: deleteScalingRule
    Action: 'ACS::ExecuteApi'
    Properties:
      Service: ESS
      API: ExecuteScalingRule
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingRuleAri: '{{ createScalingRule.scalingRuleAri }}'
    Outputs:
      scalingActivityId:
        Type: String
        ValueSelector: ScalingActivityId
  - Name: waitScalingActivityComplete
    Description:
      en: Poll scaling activity execution until success or failure
      zh-cn: 轮询伸缩活动执行情况直到成功或者失败
    OnError: deleteScalingRule
    Retries: 30
    Action: 'ACS::WaitFor'
    Properties:
      Service: ESS
      API: DescribeScalingActivities
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingActivityId1:
          Fn::If:
            - Fn::And:
                - Fn::Equals:
                    - '{{adjustmentType}}'
                    - ScaleIn
                - Fn::Equals:
                    - '{{adjustmentCount}}'
                    - 0
            - '{{ removeInstances.scalingActivityId }}'
            - '{{ executeScalingRule.scalingActivityId }}'
      DesiredValues:
        - Successful
      StopRetryValues:
        - Failed
        - Rejected
        - Warning
      PropertySelector: 'ScalingActivities.ScalingActivity[0].StatusCode'
  - Name: deleteScalingRule
    When:
      Fn::Not:
        Fn::And:
          - Fn::Equals:
              - '{{adjustmentType}}'
              - ScaleIn
          - Fn::Equals:
              - '{{adjustmentCount}}'
              - 0
    Description:
      en: Delete ScalingRule
      zh-cn: 删除伸缩组规则
    Action: 'ACS::ExecuteApi'
    Properties:
      Service: ESS
      API: DeleteScalingRule
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingRuleId: '{{ createScalingRule.scalingRuleId }}'
  - Name: describeScalingActivityDetail
    Description:
      en: Describe scaling activity detail
      zh-cn: 查询一个伸缩活动的详细信息
    Action: 'ACS::ExecuteApi'
    Properties:
      Service: ESS
      API: DescribeScalingActivityDetail
      Parameters:
        RegionId: '{{ regionId }}'
        ScalingActivityId:
          Fn::If:
            - Fn::And:
                - Fn::Equals:
                    - '{{adjustmentType}}'
                    - ScaleIn
                - Fn::Equals:
                    - '{{adjustmentCount}}'
                    - 0
            - '{{ removeInstances.scalingActivityId }}'
            - '{{ executeScalingRule.scalingActivityId }}'
    Outputs:
      detail:
        Type: String
        ValueSelector: .Detail
  - Name: getOOSExecutionOutput
    Action: 'ACS::ExecuteAPI'
    OnSuccess: ACS::END
    Description:
      en: Get the lifecycle hook OOS execution output
      zh-cn: 获取生命周期挂钩OOS执行的输出
    Properties:
      Service: OOS
      API: ListExecutions
      Parameters:
        RegionId: '{{ regionId }}'
        Tags:
          ESS:ScalingActivityId:
            Fn::If:
              - Fn::And:
                  - Fn::Equals:
                      - '{{adjustmentType}}'
                      - ScaleIn
                  - Fn::Equals:
                      - '{{adjustmentCount}}'
                      - 0
              - '{{ removeInstances.scalingActivityId }}'
              - '{{ executeScalingRule.scalingActivityId }}'
    Outputs:
      lifecycleHookOOSExecutionResult:
        Type: String
        ValueSelector: 'Executions[].Outputs'
  - Name: getNodePoolDetail
    Action: ACS::WaitFor
    Description:
      en: Get cluster node pool info
      zh-cn: 获取集群节点池信息
    Retries: 20
    Properties:
      Service: CS
      API: DescribeClusterNodePoolDetail
      Method: GET
      URI: /clusters/{{clusterId}}/nodepools/{{nodepoolId}}
      Parameters: {}
      DesiredValues:
        - active
      PropertySelector: .status.state
    Outputs:
      nodePoolInfo:
        Type: Json
        ValueSelector: .
  - Name: modifyClusterNodePool
    Action: ACS::ExecuteAPI
    Description:
      en: Modify cluster node pool configuration
      zh-cn: 修改集群节点池配置
    Properties:
      Service: CS
      API: ModifyClusterNodePool
      Method: PUT
      Headers:
        Content-Type: application/json
      URI: /clusters/{{clusterId}}/nodepools/{{nodepoolId}}
      Body:
        Fn::Jq:
          - First
          - '.+({"scaling_group": (.scaling_group + {"desired_size": {{desiredSize}}})}) | del(.scaling_group.login_password)'
          - '{{ getNodePoolDetail.nodePoolInfo }}'
  - Name: untilClusterNodePoolReady
    Action: ACS::WaitFor
    Description:
      en: Wait for the cluster node pool configuration to complete
      zh-cn: 等待集群节点池配置修改完成
    Retries: 20
    Properties:
      Service: CS
      API: DescribeClusterNodePoolDetail
      Method: GET
      Parameters: {}
      URI: /clusters/{{clusterId}}/nodepools/{{nodepoolId}}
      DesiredValues:
        - active
      PropertySelector: .status.state
Outputs:
  adjustDetail:
    Type: String
    Value: '{{ describeScalingActivityDetail.detail }}'
  lifecycleHookOOSExecutionResult:
    Type: String
    Value: '{{ getOOSExecutionOutput.lifecycleHookOOSExecutionResult }}'
Metadata:
  ALIYUN::OOS::Interface:
    ParameterGroups:
      - Parameters:
          - regionId
          - resourceType
          - scalingGroupId
          - adjustmentType
          - adjustmentCount
          - instancesToBeRemoved
          - clusterId
          - nodepoolId
          - desiredSize
        Label:
          default:
            zh-cn: 调整方式设置
            en: Scaling Rule Configure Parameters
      - Parameters:
          - OOSAssumeRole
        Label:
          default:
            zh-cn: 高级选项
            en: Control Options