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Cancels an instance refresh that is in progress and rolls back any changes that it made. Amazon EC2 Auto Scaling replaces any instances that were replaced during the instance refresh. This restores your Auto Scaling group to the configuration that it was using before the start of the instance refresh.
This operation is part of the instance refresh feature in Amazon EC2 Auto Scaling, which helps you update instances in your Auto Scaling group after you make configuration changes.
A rollback is not supported in the following situations:
There is no desired configuration specified for the instance refresh.
The Auto Scaling group has a launch template that uses an Amazon Web Services Systems
Manager parameter instead of an AMI ID for the ImageId property.
The Auto Scaling group uses the launch template's $Latest or $Default
version.
When you receive a successful response from this operation, Amazon EC2 Auto Scaling immediately begins replacing instances. You can check the status of this operation through the DescribeInstanceRefreshes API operation.
For .NET Core this operation is only available in asynchronous form. Please refer to RollbackInstanceRefreshAsync.
Namespace: Amazon.AutoScaling
Assembly: AWSSDK.AutoScaling.dll
Version: 3.x.y.z
public virtual RollbackInstanceRefreshResponse RollbackInstanceRefresh( RollbackInstanceRefreshRequest request )
Container for the necessary parameters to execute the RollbackInstanceRefresh service method.
| Exception | Condition |
|---|---|
| ActiveInstanceRefreshNotFoundException | The request failed because an active instance refresh or rollback for the specified Auto Scaling group was not found. |
| IrreversibleInstanceRefreshException | The request failed because a desired configuration was not found or an incompatible launch template (uses a Systems Manager parameter instead of an AMI ID) or launch template version ($Latest or $Default) is present on the Auto Scaling group. |
| LimitExceededException | You have already reached a limit for your Amazon EC2 Auto Scaling resources (for example, Auto Scaling groups, launch configurations, or lifecycle hooks). For more information, see DescribeAccountLimits in the Amazon EC2 Auto Scaling API Reference. |
| ResourceContentionException | You already have a pending update to an Amazon EC2 Auto Scaling resource (for example, an Auto Scaling group, instance, or load balancer). |
.NET Framework:
Supported in: 4.5, 4.0, 3.5