Use DescribeInstanceSpec to query purchasable instance specifications - ENS

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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:DescribeInstanceSpec

get

*All Resource

*

None

Request parameters

Parameter

Type

Required

Description

Example

No parameters required.

Response elements

Element	Type	Description	Example
	object
BandwidthLimit	integer	The bandwidth limit for a single instance. Unit: Mbit/s.	0
Code	integer	The returned service code. A value of 0 indicates that the operation was successful.	0
DataDiskMaxSize	integer	The maximum capacity of a data disk. Unit: GB.	20015
DataDiskMinSize	integer	The minimum capacity of a data disk. Unit: GB.	0
InstanceSpecs	object
InstanceSpec	array<object>	The information about instance specifications.
	object
Core	string	The number of CPU cores.	1
DisplayName	string	The display name of the instance type.	Compute-optimized1C2G
InstanceType	string	The type of the instance.	ens.sn1.stiny
Memory	string	The memory size. Unit: MB.	2048
RequestId	string	The request ID.	1ECC937A-AE0E-4626-BE51-DED1D6D1C888
SystemDiskMaxSize	integer	The maximum capacity of the system disk. Unit: GiB.	80

Examples

Success response

JSON format

{
  "BandwidthLimit": 0,
  "Code": 0,
  "DataDiskMaxSize": 20015,
  "DataDiskMinSize": 0,
  "InstanceSpecs": {
    "InstanceSpec": [
      {
        "Core": "1",
        "DisplayName": "Compute-optimized1C2G",
        "InstanceType": "ens.sn1.stiny",
        "Memory": "2048"
      }
    ]
  },
  "RequestId": "1ECC937A-AE0E-4626-BE51-DED1D6D1C888",
  "SystemDiskMaxSize": 80
}

Error codes

HTTP status code	Error code	Error message	Description
400	MissingParameter	The input parameter domainName that is mandatory for processing this request is not supplied.
400	InstanceIdNotFound	The input parameter instancdId that is not found.	The specified instance ID does not exist.
400	NoPermission	Permission denied.
400	CallInterface	Call Interface Happen Error.	An error occurred when you call the operation.
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.