Docker cleanup

After installing docker on server you can add cleanup script to crontab.

echo -e '#!/bin/sh\ndocker system prune -af' | sudo tee /etc/cron.weekly/docker-prune > /dev/null && sudo chmod +x /etc/cron.weekly/docker-prune

it will remove all unused images and containers every week.

To test call

run-parts /etc/cron.weekly