The automatic rollback on error feature is enabled when one of the resources in a stack can’t be created successfully in AWS OpsWorks. The feature results in the deletion of all the successfully created AWS resources until the point of the occurrence of the error.
Doing so ensures that no error-causing data is left behind as well as abiding by the principle that the stacks are either created completely or not created at all.
The automatic rollback on error feature is useful especially in cases where one might unknowingly exceed the limit of the total number of Elastic IP addresses or does not have access to the EC2 AMI.
