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Alibaba Cloud DNS:DescribeCloudGtmSystemLines

Last Updated:Dec 02, 2025

Queries the system lines supported by Global Traffic Manager (GTM).

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

alidns:DescribeCloudGtmSystemLines

list

*All Resource

*

None

None

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element

Type

Description

Example

object

SystemLines

object

SystemLine

array<object>

A list of system lines.

object

The information about a system line.

Code

string

The code of the line.

aliyun_r_ap-south-1

ParentCode

string

The code of the parent line.

String aliyun

IsAvailable

boolean

Indicates whether the line can be selected as the source of a resolution request.

  • true: The line can be selected.

  • false: The line cannot be selected.

true

DisplayName

string

The display name of the line.

North China-Hebei

Name

string

The name of the line.

Heibei

RequestId

string

The unique request ID.

389DFFA3-77A5-4A9E-BF3D-147C6F98A5BA

SystemLinesTree

string

The data of the system lines in a tree structure. The complete data is not listed due to its large size.

"SystemLinesTree":"[{\"displayName\":\" Default\",\"id\":\"default\",\"isAvailable\":true,\"name\":\" Default\",\"parentId\":\"\"}

Examples

Success response

JSON format

{
  "SystemLines": {
    "SystemLine": [
      {
        "Code": "aliyun_r_ap-south-1",
        "ParentCode": "String\taliyun",
        "IsAvailable": true,
        "DisplayName": "华北_河北",
        "Name": "河北"
      }
    ]
  },
  "RequestId": "389DFFA3-77A5-4A9E-BF3D-147C6F98A5BA",
  "SystemLinesTree": "\"SystemLinesTree\":\"[{\\\"displayName\\\":\\\"默认\\\",\\\"id\\\":\\\"default\\\",\\\"isAvailable\\\":true,\\\"name\\\":\\\"默认\\\",\\\"parentId\\\":\\\"\\\"}"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.