After deleting cloudformation stack,
below task definitions are still around in INACTIVE state:
I don't have the option to delete them explicitly.
Why cloudformation service does not delete these resources?
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Jonathan Hall
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overexchange
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Does this answer your question? [How do you delete an AWS ECS Task Definition?](https://stackoverflow.com/questions/35045264/how-do-you-delete-an-aws-ecs-task-definition) – Adnan Mohib Mar 12 '20 at 04:59
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How did it go? Still unclear why you can't do this? – Marcin Oct 29 '21 at 08:05
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There is no such thing as deleting a task definition. You can only de-register them and this is what cloudformation is doing. When task is de-registered it goes into INACTIVE state.
Docs write:
At this time, INACTIVE task definition revisions remain discoverable in your account indefinitely; however, this behavior is subject to change in the future, so you should not rely on INACTIVE task definition revisions persisting beyond the lifecycle of any associated tasks and services.
Marcin
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Does task definition go in INACTIVE state only after de-registeration – overexchange Mar 12 '20 at 06:35
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@overexchange I think so, though I can't find any confirmation for this in the docs. – Marcin Mar 12 '20 at 06:38