RollbackInstanceRefresh - Auto Scaling - Alibaba Cloud Documentation Center

Rolls back an instance refresh task during execution. If the desired configuration no longer meets your requirements during an instance refresh task, call this operation to roll back the task. During the rollback, the system creates new instances based on the currently active configuration of the scaling group to replace instances that were created based on the desired configuration.

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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

ess:RollbackInstanceRefresh

update

*ScalingGroup

acs:ess:{#regionId}:{#accountId}:scalinggroup/{#ScalingGroupId}

None

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The ID of the region where the scaling group resides.	cn-hangzhou
ScalingGroupId	string	Yes	The ID of the scaling group.	asg-bp18p2yfxow2dloq****
InstanceRefreshTaskId	string	No	The ID of the instance refresh task.	ir-a12ds234fasd*****

Response elements

Element	Type	Description	Example
	object
RequestId	string	The request ID.	B13527BF-1FBD-4334-A512-20F5E9D3****

Examples

Success response

JSON format

{
  "RequestId": "B13527BF-1FBD-4334-A512-20F5E9D3****"
}

Error codes

HTTP status code	Error code	Error message	Description
500	InternalError	The request processing has failed due to some unknown error, exception or failure.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.