DescribeRegions - Query Auto Scaling regions - Auto Scaling

Queries the regions where Auto Scaling is available. Before activating Auto Scaling, you can call this operation to identify supported regions and select the optimal region and availability zones for your deployment.

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Test

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

ess:DescribeRegions

get

*All Resource

*

None

Request parameters

Parameter	Type	Required	Description	Example
AcceptLanguage	string	No	The response language, as defined in RFC 7231. Valid values: zh-CN: Chinese en-US: English ja: Japanese Default value: zh-CN.	zh-CN

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	73469C7-AA6F-4DC5-B3DB-A3DC0DE3****
Regions	array<object>	The regions.
	object	The region details.
ClassicUnavailable	boolean	Whether the region supports classic network scaling groups. Valid values: true false	false
RegionEndpoint	string	The region endpoint.	ess.aliyuncs.com
LocalName	string	The region name.	华北2（北京）
VpcUnavailable	boolean	Whether the region supports VPC-based scaling groups. Valid values: true false	false
RegionId	string	The region ID.	cn-beijing

Examples

Success response

JSON format

{
  "RequestId": "73469C7-AA6F-4DC5-B3DB-A3DC0DE3****",
  "Regions": [
    {
      "ClassicUnavailable": false,
      "RegionEndpoint": "ess.aliyuncs.com",
      "LocalName": "华北2（北京）",
      "VpcUnavailable": false,
      "RegionId": "cn-beijing"
    }
  ]
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.