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    Resource Orchestration Service:ESS resources

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    Resource Orchestration Service:ESS resources

    Last Updated:Jun 22, 2026

    The following table lists the AssociationProperty and AssociationPropertyMetadata values for Auto Scaling (ESS) resources in ROS templates.

    AssociationProperty values

    Description

    Corresponding AssociationPropertyMetadata

    ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId

    The ID of the Auto Scaling group.

    RegionId: The ID of the region. This parameter defaults to the region where the stack resides.

    Examples:

    • Example code

      JSON example:

      {
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "RegionId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ECS::RegionId"
    },
    "AutoScalingGroupId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId",
      "AssociationPropertyMetadata": {
        "RegionId": "${RegionId}"
      }
    }
  }
}

      YAML example:

      ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  RegionId:
    Type: String
    AssociationProperty: ALIYUN::ECS::RegionId
  AutoScalingGroupId:
    Type: String
    AssociationProperty: ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId
    AssociationPropertyMetadata:
      RegionId: ${RegionId}

    • Example explanation

      The AssociationProperty of AutoScalingGroupId is set to ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId, which retrieves Auto Scaling group IDs for selection.

    ALIYUN::ESS::ECIScalingConfiguration::ContainerName

    The name of a container in an ECI scaling configuration.

    • RegionId: The ID of the region. This parameter defaults to the region where the stack resides.

    • ScalingGroupId: The ID of the scaling group.

    • ScalingConfigurationId: The ID of the scaling configuration.

    Example code

    JSON example:

    {
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "RegionId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ECS::RegionId"
    },
    "ESSECIScalingConfigurationContainerName": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ESS::ECIScalingConfiguration::ContainerName",
      "AssociationPropertyMetadata": {
        "RegionId": "${RegionId}"
      }
    }
  }
}

    YAML example:

    ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  RegionId:
    Type: String
    AssociationProperty: ALIYUN::ECS::RegionId
  ESSECIScalingConfigurationContainerName:
    Type: String
    AssociationProperty: ALIYUN::ESS::ECIScalingConfiguration::ContainerName
    AssociationPropertyMetadata:
      RegionId: ${RegionId}

    ALIYUN::ESS::ECIScalingConfiguration::ScalingConfigurationId

    The ID of an ECI scaling configuration.

    • RegionId: The ID of the region. This parameter defaults to the region where the stack resides.

    • ScalingGroupId: The ID of the scaling group.

    • AutoSelectFirst: Specifies whether to select the first item.

    Example code

    JSON example:

    {
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "RegionId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ECS::RegionId"
    },
    "AutoScalingGroupId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId",
      "AssociationPropertyMetadata": {
        "RegionId": "${RegionId}"
      }
    },
    "ServiceConnectionId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ESS::ECIScalingConfiguration::ScalingConfigurationId",
      "AssociationPropertyMetadata": {
        "RegionId": "${RegionId}",
        "ScalingGroupId": "${AutoScalingGroupId}",
        "AutoSelectFirst": true
      }
    }
  }
}

    YAML example:

    ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  RegionId:
    Type: String
    AssociationProperty: ALIYUN::ECS::RegionId
  AutoScalingGroupId:
    Type: String
    AssociationProperty: ALIYUN::ESS::AutoScalingGroup::AutoScalingGroupId
    AssociationPropertyMetadata:
      RegionId: ${RegionId}
  ServiceConnectionId:
    Type: String
    AssociationProperty: ALIYUN::ESS::ECIScalingConfiguration::ScalingConfigurationId
    AssociationPropertyMetadata:
      RegionId: ${RegionId}
      ScalingGroupId: ${AutoScalingGroupId}
      AutoSelectFirst: true

    ALIYUN::ESS::ScalingConfiguration::ScalingConfigurationId

    The ID of the scaling configuration.

    RegionId: The ID of the region. This parameter defaults to the region where the stack resides.

    Examples:

    • Example code

      JSON example:

      {
  "ROSTemplateFormatVersion": "2015-09-01",
  "Parameters": {
    "RegionId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ECS::RegionId"
    },
    "ScalingConfigurationId": {
      "Type": "String",
      "AssociationProperty": "ALIYUN::ESS::ScalingConfiguration::ScalingConfigurationId",
      "AssociationPropertyMetadata": {
        "RegionId": "${RegionId}"
      }
    }
  }
}

      YAML example:

      ROSTemplateFormatVersion: '2015-09-01'
Parameters:
  RegionId:
    Type: String
    AssociationProperty: ALIYUN::ECS::RegionId
  ScalingConfigurationId:
    Type: String
    AssociationProperty: ALIYUN::ESS::ScalingConfiguration::ScalingConfigurationId
    AssociationPropertyMetadata:
      RegionId: ${RegionId}

    • Example explanation

      The AssociationProperty of ScalingConfigurationId is set to ALIYUN::ESS::ScalingConfiguration::ScalingConfigurationId, which retrieves scaling configuration IDs for selection.