ListRegions - Alibaba Cloud Linux - Alibaba Cloud Documentation Center

Operation description

This operation retrieves the list of regions where the current user has instances managed by SysOM. If a user has ECS instances in a region but none of them are managed by SysOM, that region is not included in the response.

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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

sysom:ListRegions

list

*All Resource

*

None

Request syntax

GET /api/v1/am/instance/list_regions HTTP/1.1

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element	Type	Description	Example
	object	Schema of Response
code	string	The error code.	Success
message	string	The error code description. This value is empty if no error occurs.	SysomOpenAPIAssumeRoleException: EntityNotExist.Role The role not exists: acs:ram::xxxxx:role/aliyunserviceroleforsysom
data	array	The list of regions.	["cn-hangzhou", "cn-shengzhen"]
	string	The region.	cn-hangzhou
RequestId	string	The request ID, which can be used for end-to-end diagnostics.	B149FD9C-ED5C-5765-B3AD-05AA4A4D64D7

Examples

Success response

JSON format

{
  "code": "Success",
  "message": "SysomOpenAPIAssumeRoleException: EntityNotExist.Role The role not exists: acs:ram::xxxxx:role/aliyunserviceroleforsysom",
  "data": [
    "cn-hangzhou"
  ],
  "RequestId": "B149FD9C-ED5C-5765-B3AD-05AA4A4D64D7"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.