CODEWITHSUNDEEP
docker
user2363318
user2363318

Reputation: 1067

Limit the number of exited containers on a host (1.8.3)

Is there a way to limit the number of exited containers on a host in general or (ideally) to specific images?

I have a cron job that runs daily to removed them but I'd like docker to handle it, if possible.

I can't just have the cron job run more often because developers like a few old copies of a container to check.

Upvotes: 1

Views: 66

Answers (1)

morxa
morxa

Reputation: 3364

Docker does not support a limit for the number of exited containers. In fact, Docker does not support any form of garbage collection for stopped containers. However, there are third-party tools such as docker-gc that support garbage collection of old containers and unused images. However, docker-gc does not support a limit for the number of stopped containers as you requested.

If you want to write a script that solves your problem: docker inspect gives you a FinishedAt date for stopped containers. You can list all containers with a specific image, sort them by the finish date, and then remove all images that exceed your limit. The python module docker-py might be useful for that.

Upvotes: 1

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