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Resource Orchestration Service:ListStackResourceDrifts

Last Updated:Jun 03, 2026

The query token. Set this parameter to the NextToken value returned in the last API call.

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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

ros:ListStackResourceDrifts

get

*stack

acs:ros:{#regionId}:{#accountId}:stack/{#stackId}

None None

Request parameters

Parameter

Type

Required

Description

Example

StackId

string

Yes

The ID of the stack.

4a6c9851-3b0f-4f5f-b4ca-a14bf691****

RegionId

string

Yes

The physical ID of the resource.

cn-hangzhou

MaxResults

integer

No

The time when the resource drift detection operation was initiated.

50

NextToken

string

No

The type of the resource.

AAAAAdDWBF2****w==

ResourceDriftStatus

array

No

The resource properties as defined in the template, in JSON format.

MODIFIED

string

No

The drift status of the resource. Valid values:

  • DELETED: The actual configuration of the resource differs from its expected template configuration because the resource had been deleted.

  • MODIFIED: The actual configuration of the resource differs from its expected template configuration.

  • NOT_CHECKED: ROS has not checked whether the actual configuration of the resource differs from its expected template configuration.

  • IN_SYNC: The actual configuration of the resource matches its expected template configuration.

MODIFIED

Response elements

Element

Type

Description

Example

object

ResourceDrifts

array<object>

The resource drifts.

array<object>

LogicalResourceId

string

The logical ID of the resource. The logical ID indicates the name of the resource that is defined in the template.

ScalingRule

StackId

string

The stack ID.

4a6c9851-3b0f-4f5f-b4ca-a14bf691****

PhysicalResourceId

string

The physical ID of the resource.

asr-2ze4zzc3kf9yz1kd****

DriftDetectionTime

string

The time when the drift detection operation was performed on the resource.

2020-02-27T07:47:47

ResourceType

string

The resource type.

ALIYUN::ESS::ScalingRule

ExpectedProperties

string

The JSON-formatted resource properties that are defined in the template.

{"ScalingRuleName": "test2"}

ResourceDriftStatus

string

The drift state of the resource. Valid values:

  • DELETED: The actual configuration of the resource differs from its expected template configuration because the resource is deleted.

  • MODIFIED: The actual configuration of the resource differs from its expected template configuration.

  • NOT_CHECKED: Resource Orchestration Service (ROS) has not checked whether the actual configuration of the resource differs from its expected template configuration.

  • IN_SYNC: The actual configuration of the resource matches its expected template configuration.

MODIFIED

PropertyDifferences

array<object>

The property drifts of the resource.

object

ActualValue

string

The actual value of the resource property.

test1

DifferenceType

string

The drift type of the resource property. Valid values:

  • ADD: The value is added to a resource property whose data type is Array or List.

  • REMOVE: The property is deleted from the current resource configuration.

  • NOT_EQUAL: The current property value differs from the expected value that is defined in the stack template.

NOT_EQUAL

PropertyPath

string

The path of the resource property.

/ScalingRuleName

ExpectedValue

string

The expected value of the resource property that is defined in the template.

test2

ActualProperties

string

The actual JSON-formatted resource properties.

{"ScalingRuleName": "test1"}

ModuleInfo

object

The information about the modules from which the resource was created. This parameter is returned only if the resource is created from modules.

LogicalIdHierarchy

string

The concatenated logical IDs of one or more modules that contain the resource. The modules are listed from the outermost layer and separated by forward slashes (/).

In the following example, the resource is created from Module B nested within Parent Module A:

moduleA/moduleB

moduleA/moduleB

TypeHierarchy

string

The concatenated types of one or more modules that contain the resource. The module types are listed from the outermost layer and separated by forward slashes (/).

In the following example, the resource is created from a module of the MODULE::ROS::Child::Example type that is nested within a parent module of the MODULE::ROS::Parent::Example type:

MODULE::ROS::Parent::Example/MODULE::ROS::Child::Example

MODULE::ROS::Parent::Example/MODULE::ROS::Child::Example

NextToken

string

The query token returned in this call.

AAAAAdDWBF2****w==

RequestId

string

The ID of the request.

B288A0BE-D927-4888-B0F7-B35EF84B6E6F

The drift status of the resource.

Examples

Success response

JSON format

{
  "ResourceDrifts": [
    {
      "LogicalResourceId": "ScalingRule",
      "StackId": "4a6c9851-3b0f-4f5f-b4ca-a14bf691****",
      "PhysicalResourceId": "asr-2ze4zzc3kf9yz1kd****",
      "DriftDetectionTime": "2020-02-27T07:47:47",
      "ResourceType": "ALIYUN::ESS::ScalingRule",
      "ExpectedProperties": "{\"ScalingRuleName\": \"test2\"}",
      "ResourceDriftStatus": "MODIFIED",
      "PropertyDifferences": [
        {
          "ActualValue": "test1",
          "DifferenceType": "NOT_EQUAL",
          "PropertyPath": "/ScalingRuleName",
          "ExpectedValue": "test2"
        }
      ],
      "ActualProperties": "{\"ScalingRuleName\": \"test1\"}",
      "ModuleInfo": {
        "LogicalIdHierarchy": "moduleA/moduleB",
        "TypeHierarchy": "MODULE::ROS::Parent::Example/MODULE::ROS::Child::Example"
      }
    }
  ],
  "NextToken": "AAAAAdDWBF2****w==",
  "RequestId": "B288A0BE-D927-4888-B0F7-B35EF84B6E6F"
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.