The arvados-docker-cleaner program removes least recently used docker images as needed to keep disk usage below a configured limit.
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-This also removes all containers as soon as they exit, as if they were run with `docker run --rm`. If you need to debug or inspect containers after they stop, temporarily stop arvados-docker-cleaner or run it with the `--no-remove-stopped-containers` flag.
+This also removes all containers as soon as they exit, as if they were run with `docker run --rm`. If you need to debug or inspect containers after they stop, temporarily stop arvados-docker-cleaner or run it with `--remove-stopped-containers never`.
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On Debian-based systems, install runit: