Call DescribeReservedResource to query purchasable resource specifications - ENS

Queries the specifications of resources that you can purchase.

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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

ens:DescribeReservedResource

get

*All Resource

*

None

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	6666C5A5-75ED-422E-A022-7121FA18C968
Images	object
Image	array<object>	The information about the image.
	object
ImageName	string	The name of the image.	centos_6_08_64_20G_alibase_****
ImageId	string	The ID of the image.	centos_6_08_64_20G_alibase_****
SupportResources	object
SupportResource	array<object>	The resources.
	array<object>	The specifications of resources that you can purchase.
EnsRegionId	string	The ID of the node.	cn-beijing-cmcc
DataDiskSizes	object
DataDiskSize	array	The sizes of data disks.
	string	The size of the data disk. Unit: GB.	0
SupportResourcesCount	string	The number of resources that you can purchase.	9
SystemDiskSizes	object
SystemDiskSize	array	The sizes of system disks.
	string	The size of the system disk. Unit: GB.	20
InstanceSpec	string	The specifications of instances.	ens.sn1.stiny
Code	integer	The returned service code. 0 indicates that the request was successful.	0

Examples

Success response

JSON format

{
  "RequestId": "6666C5A5-75ED-422E-A022-7121FA18C968",
  "Images": {
    "Image": [
      {
        "ImageName": "centos_6_08_64_20G_alibase_****",
        "ImageId": "centos_6_08_64_20G_alibase_****"
      }
    ]
  },
  "SupportResources": {
    "SupportResource": [
      {
        "EnsRegionId": "cn-beijing-cmcc",
        "DataDiskSizes": {
          "DataDiskSize": [
            "0"
          ]
        },
        "SupportResourcesCount": "9",
        "SystemDiskSizes": {
          "SystemDiskSize": [
            "20"
          ]
        },
        "InstanceSpec": "ens.sn1.stiny"
      }
    ]
  },
  "Code": 0
}

Error codes

HTTP status code	Error code	Error message	Description
400	MissingParameter	The input parameters that is mandatory for processing this request is not supplied.
400	InstanceNotExists	The user have no instances.
400	CallInterface	Call Interface Happen Error.	An error occurred when you call the operation.
400	NoPermission	Permission denied.
400	InvalidParameter.%s	The specified field %s invalid. Please check it again.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.