Query available resources using the DescribeAvailableResource API - ENS

Queries the resources that can be created.

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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:DescribeAvailableResource

get

*All Resource

*

None

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element	Type	Description	Example
	object
Code	integer	The returned service code. 0 indicates that the request was successful.	0
Images	object
Image	array<object>	The details of the images.
	object
ImageId	string	The ID of the image.	centos_6_08_64_20G_alibase_20171208
ImageName	string	The name of the image.	centos_6_08_64_20G_alibase_****
RequestId	string	The ID of the request. This is a common parameter. Each request has a unique ID. You can use this ID to troubleshoot issues.	473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E
SupportResources	object
SupportResource	array<object>	The specifications of resources that you can purchase.
	object
DataDiskSize	string	The size of the data disk. Unit: GB.	500
EnsRegionId	string	The ID of the edge node.	cn-beijing-cmcc
InstanceSpec	string	The specifications of the resource plan.	ens.sn1.stiny
SupportResourcesCount	string	The number of resources that you can purchase.	9
SystemDiskSize	string	The size of the system disk. Unit: GiB.	20

Examples

Success response

JSON format

{
  "Code": 0,
  "Images": {
    "Image": [
      {
        "ImageId": "centos_6_08_64_20G_alibase_20171208",
        "ImageName": "centos_6_08_64_20G_alibase_****"
      }
    ]
  },
  "RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3C83E",
  "SupportResources": {
    "SupportResource": [
      {
        "DataDiskSize": "500",
        "EnsRegionId": "cn-beijing-cmcc",
        "InstanceSpec": "ens.sn1.stiny",
        "SupportResourcesCount": "9",
        "SystemDiskSize": "20"
      }
    ]
  }
}

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.