Request Parameters Response Elements Errors See Also

RollbackStack

When specifying RollbackStack, you preserve the state of previously provisioned resources when an operation fails. You can check the status of the stack through the DescribeStacks operation.

Rolls back the specified stack to the last known stable state from CREATE_FAILED or UPDATE_FAILED stack statuses.

This operation will delete a stack if it doesn't contain a last known stable state. A last known stable state includes any status in a *_COMPLETE. This includes the following stack statuses.

CREATE_COMPLETE
UPDATE_COMPLETE
UPDATE_ROLLBACK_COMPLETE
IMPORT_COMPLETE
IMPORT_ROLLBACK_COMPLETE

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

ClientRequestToken

A unique identifier for this RollbackStack request.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: [a-zA-Z0-9][-a-zA-Z0-9]*

Required: No

RetainExceptOnCreate

When set to true, newly created resources are deleted when the operation rolls back. This includes newly created resources marked with a deletion policy of Retain.

Default: false

Type: Boolean

Required: No

RoleARN

The Amazon Resource Name (ARN) of an IAM role that CloudFormation assumes to rollback the stack.

Type: String

Length Constraints: Minimum length of 20. Maximum length of 2048.

Required: No

StackName

The name that's associated with the stack.

Type: String

Length Constraints: Minimum length of 1.

Pattern: ([a-zA-Z][-a-zA-Z0-9]*)|(arn:\b(aws|aws-us-gov|aws-cn)\b:[-a-zA-Z0-9:/._+]*)

Required: Yes

Response Elements

The following element is returned by the service.

StackId

Unique identifier of the stack.

Type: String

Errors

For information about the errors that are common to all actions, see Common Errors.

TokenAlreadyExists

A client request token already exists.

HTTP Status Code: 400