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Elastic Compute Service:DescribeApps

Last Updated:Jul 31, 2026

Queries application information as a centralized role.

Operation description

Operation description

Queries the tag keys and values of cloud disks and snapshots contained in a user-defined application. You can use filterTagKey to narrow the query scope.

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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

ebs:DescribeApps

list

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

AppNames

array

No

The list of applications to query. If this parameter is empty, all application information is queried.

App1,App2

string

No

The application name.

default

RegionId

string

No

The region ID. You can call DescribeRegions to query the list of regions supported by EBS Lens.

cn-shanghai

Owner

string

No

The user UID.

1485558146415628

ClientToken

string

No

A string generated by the server that serves as an identifier for the client request.

123e4567-e89b-12d3-a456-42665544****

AppIds

array

No

The IDs of the applications to query. This parameter is a formatted JSON array that supports up to 100 AppId values separated by commas (,).

string

No

The IDs of the applications to query. This parameter is a formatted JSON array that supports up to 100 AppId values separated by commas (,).

app-25603551

Response elements

Element

Type

Description

Example

object

DescribeAppsResponse

AppInfos

array<object>

The application information.

array<object>

The details of the application.

AppName

string

The application name. This parameter takes effect only when ReportType is set to present.

app1

AppTags

array<object>

The tags contained in the user application.

default

object

TagKey

string

Tag key.

ebs

TagValue

string

Tag value.

test

SubscribeStatus

string

The subscription status. Valid values:

  • Subscribe: subscribed.

  • UnSubscribe: not subscribed.

Subscribe

SubscribePeriod

string

The report subscription period.

Weekly

Description

string

The event description.

This app is used to collect cloud disk usage statistics across the network

ReportSendEnabled

boolean

Indicates whether report sending is enabled.

true

SlsSendEnabled

boolean

Indicates whether delivery to Simple Log Service (SLS) is enabled.

EventBridgeSendEnabled

boolean

Indicates whether delivery to EventBridge is enabled.

MonitorSendEnabled

boolean

Indicates whether delivery to CloudMonitor is enabled.

ModifyTime

integer

The modification time in UTC.

2025-11-14T02:11:32Z

Default

boolean

The default time zone.

true

AppId

string

The application ID.

app-bd5e3533

RequestId

string

The request ID.

A1C00637-AC84-5EFD-89B5-D5CE39F0F2B1

Code

string

The internal error code.

OK

UserCode

string

The user error code.

OK

Message

string

The message.

success

Success

boolean

Indicates whether the request was successful.

True

HttpStatusCode

integer

The HTTP status code.

200

DynamicCode

string

The dynamic error code.

OK

DynamicMessage

string

The dynamic error message, which is used to replace the %s variable in the ErrMessage error message.

-

AccessDeniedDetail

string

The details about the access denial.

None

Examples

Success response

JSON format

{
  "AppInfos": [
    {
      "AppName": "app1",
      "AppTags": [
        {
          "TagKey": "ebs",
          "TagValue": "test"
        }
      ],
      "SubscribeStatus": "Subscribe",
      "SubscribePeriod": "Weekly",
      "Description": "这个app用于统计云盘全网用量",
      "ReportSendEnabled": true,
      "SlsSendEnabled": false,
      "EventBridgeSendEnabled": false,
      "MonitorSendEnabled": false,
      "ModifyTime": 0,
      "Default": true,
      "AppId": "app-bd5e3533"
    }
  ],
  "RequestId": "A1C00637-AC84-5EFD-89B5-D5CE39F0F2B1",
  "Code": "OK",
  "UserCode": "OK",
  "Message": "success",
  "Success": true,
  "HttpStatusCode": 200,
  "DynamicCode": "OK",
  "DynamicMessage": "-",
  "AccessDeniedDetail": "None"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidParameter The parameter %s is invalid. The specified parameter value is invalid.
400 InvalidParameter.Conflict The specified parameter %s and %s are not blank at the same time.
400 InvalidParameter.Format Specified parameter format is not valid. english description
400 MissingParameter The input parameter %s that is mandatory for processing this request is not supplied. The parameter must be specified.
500 InternalError The request processing has failed due to some unknown error, exception or failure. An internal error has occurred.
403 Forbidden User is not authorized to operate. You are not authorized to manage the resource. Check the account permissions or contact the Alibaba Cloud account.
403 Forbidden.Action User is not authorized to operate this action. You are not authorized to perform this operation. Check the account permissions or contact the Alibaba Cloud account.
403 InvalidAccountStatus.NotEnoughBalance Your account does not have enough balance.
403 LastTokenProcessing The last token request is processing. The value of clientToken is used in another request that is being processed. Try again later.
403 NoPermission.SLR The RAM user does not have the permission to create service linked role: AliyunServiceLinkedRoleForEBS. You are not authorized to create service-linked roles.
403 OperationDenied The operation is not allowed. The operation is not supported.
404 InvalidApi.NotFound Specified api is not found, please check your url and method.
404 NoSuchResource The specified resource does not exist. The specified resource does not exist.
504 RequestTimeout The request is timeout, please try again later. The request has timed out. Try again later.
429 BLOCK.LimitedRequest Request was denied due to user flow control.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.