ACS::ECS::ElegantRunCommandInSLBVServerGroup.yml

FormatVersion: OOS-2019-06-01
Description: Run the command in the instance of the SLB  Verver group.
Parameters:
  regionId:
    Description: The ID of region.
    Type: String
    Default: '{{ ACS::RegionId }}'
  VServerGroupId:
    Description: The ID of ECS vserver group.
    Type: String
  serverId:
    Description: The ID of ECS instance.
    Type: String
  weight:
    Description: The weight of server.
    Type: Number
  type:
    Description: The type of server.
    Type: String
  port:
    Description: The port of server.
    Type: Number
  commandType:
    Description: The type of command.
    Type: String
    AllowedValues:
      - RunBatScript
      - RunPowerShellScript
      - RunShellScript
    Default: RunShellScript
  commandContent:
    Description: Command content to run in ECS instance.
    Type: String
Tasks:
  - Name: setServerWeightToZero
    Action: 'ACS::ExecuteApi'
    Description: Sets server weight to zero.
    OnError: recoverServerWeight
    Properties:
      Service: SLB
      API: SetVServerGroupAttribute
      Parameters:
        RegionId: '{{ regionId }}'
        BackendServers:
          'Fn::MergeMapToList':
            - ServerId:
                - '{{ serverId }}'
            - Weight:
                - 0
            - Type:
                - '{{ type }}'
            - Port:
                - '{{ port }}'
        VServerGroupId: '{{ VServerGroupId }}'
  - Name: runCommand
    Action: 'ACS::ECS::RunCommand'
    Description: Execute cloud assistant command.
    OnError: recoverServerWeight
    Properties:
      regionId: '{{ regionId }}'
      instanceId: '{{ serverId }}'
      commandType: '{{ commandType }}'
      commandContent: '{{ commandContent }}'
    Outputs:
      commandOutput:
        Type: String
        ValueSelector: invocationOutput
  - Name: recoverServerWeight
    Action: 'ACS::ExecuteApi'
    Description: Set the server weight to the original value.
    Properties:
      Service: SLB
      API: SetVServerGroupAttribute
      Parameters:
        RegionId: '{{ regionId }}'
        BackendServers:
          'Fn::MergeMapToList':
            - ServerId:
                - '{{ serverId }}'
            - Weight:
                - '{{ weight }}'
            - Type:
                - '{{ type }}'
            - Port:
                - '{{ port }}'
        VServerGroupId: '{{ VServerGroupId }}'
Outputs:
  commandOutput:
    Type: String
    Value: '{{ runCommand.commandOutput }}'