Can I force delete an AWS CloudFormation stack that is In Progress of Rollback

Question

An AWS CloudFormation rollback (e.g., UPDATE_ROLLBACK_IN_PROGRESS) has been in progress forever, like over an hour and a half. I want to delete the stack altogether or force stop any activity. Is this possible?

Thanks!

Answer 1

Another common cause of blocked stack updates/rollbacks is errors in ECS::Service resource updates: it doesn't look like that is currently detected (in some cases?). Cloudformation is waiting for the service event for the service reaching a steady state, so simply updating the service to something that works (e.g. desired tasks to 0) will unblock it. Try to get the state back to what Cloudformation expects before sending more updates to avoid problems, though.

Answer 2

I guess your stack resources are changed or deleted by outside. You can find official guide as below.

Manually sync resources so that they match the original stack's template, and then continue rolling back the update. For example, if you manually deleted a resource that AWS CloudFormation is attempting to roll back to, you must manually create that resource with the same name and properties it had in the original stack.

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/troubleshooting.html#troubleshooting-errors-update-rollback-failed

or (as @talentedmrjones said)

To fix the stack, contact AWS customer support.

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/troubleshooting.html#troubleshooting-errors-nested-stacks-are-stuck

In my case, I can stop same situation via re-creating deleted resource.