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Resource Orchestration Service:Use Metadata to group parameters

Last Updated:Jun 16, 2026

If you use Resource Orchestration Service (ROS) to create a stack that manages multiple categories of resources, the parameters for different resources may conflict with each other. You can use Metadata to group these parameters so that you can configure them in the ROS console in a centralized manner.

Background information

Metadata groups the parameters defined in the Parameters section and assigns a label to each group. The following example uses the Deploy a Harbor Cluster (Existing VPC) template to demonstrate how to group parameters. For more information about the template, go to the Deploy a Harbor Cluster (Existing VPC) page.

The following parameter groups are configured to deploy a Harbor cluster:

  • Infrastructure Configuration

  • Harbor Configuration

  • DB Configuration

  • Redis Configuration

  • SLB Configuration

You can add the parameters for each group to the Parameters section of the corresponding group. The following sample code shows an example of Metadata:

Metadata:
  ALIYUN::ROS::Interface:
    ParameterGroups:
      - Parameters:
          - VSwitchZoneId
          - VPC
          - VSwitch
          - SecurityGroup
        Label:
          default:
             
            en: Infrastructure Configuration
      - Parameters:
          - ClusterAmount
          - InstanceType
          - SystemDiskCategory
          - SystemDiskSize
          - Password
          - HarborAdminPassword
        Label:
          default:
             
            en: Harbor Configuration
      - Parameters:
          - DBInstanceEngineAndVersion
          - DBInstanceClass
          - DBInstanceStorage
          - DBUser
          - DBPassword
        Label:
          default:
             
            en: DB Configuration
      - Parameters:
          - RedisInstanceClass
          - EvictionPolicy
          - RedisPassword
        Label:
          default:
             
            en: Redis Configuration
      - Parameters:
          - LoadBalancerSpec
          - Bandwidth
        Label:
          default:
             
            en: SLB Configuration
    TemplateTags:
      - Creates one ECS(Harbor) instance - Existing Vpc

Procedure

  1. Log in to the ROS console.

  2. In the left-side navigation pane, choose Public Templates.

  3. Search for the Deploy a Harbor Cluster (Existing VPC) template.

  4. Click Create Stack.

  5. In the Configure Parameters step, specify the Stack Name parameter and configure parameters in the Infrastructure Configuration, Harbor Configuration, DB Configuration, Redis Configuration, and SLB Configuration sections.

  6. Click Next:Check and Confirm. Then, click Create.