Docker cleanup commands you'll actually use

When Docker eats your disk

Check how much space Docker is using:

docker system df

Remove stopped containers, unused networks, dangling images, and build cache:

docker system prune -f

Also remove unused images (not just dangling):

docker system prune -a -f

Remove unused volumes (careful — this deletes data):

docker volume prune -f

Remove images older than 24 hours:

docker image prune -a --filter "until=24h" -f