Sometimes your Docker host will fill up with orphaned volumes, containers, images and netowrks. You can use this image to automatically trim your orphaned volumes every 24 hours:
sudo docker run -d \ --name=docker-prune \ -v /var/run/docker.sock:/var/run/docker.sock \ -e INTERVAL=86400 \ -e "OBJECTS=container volume image network" \ -e "OPTIONS=--filter until=24h" \ docker.io/xjokay/prune:latest
Pulled from Docker Prune