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Remove all unused Docker data including volumes

destructive rootDockerdebian, ubuntu
root@server
docker system prune -a --volumes

The most thorough cleanup option: besides stopped containers and networks, -a removes all images without a running container and --volumes removes unused volumes. A volume counts as unused as soon as no container references it, which includes a Compose stack that was just stopped with down.

Note: Databases and uploads in volumes are irrevocably deleted afterwards. Check with docker volume ls first and back up important volumes.

Open question before approval: Verhalten von --volumes je nach Docker-Version prüfen: seit Docker 23 werden standardmäßig nur anonyme Volumes entfernt, ältere Versionen (Debian 12 docker.io 20.10) entfernen alle ungenutzten Volumes.

Also searched as

  • docker free up disk space completely
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All in Docker

Clean up unused Docker data

#docker system prune
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List unused Docker volumes

#docker volume ls --filter dangling=true
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Back up a Docker volume to a tar archive

#docker run --rm -v app_data:/data:ro -v /root/docker-backup:/backup alpine tar czf /backup/app_data.tar.gz -C /data .
cautionDocker

Remove a Docker Compose stack including its volumes

#docker compose -f /opt/app/compose.yaml down -v
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Remove dangling Docker images

#docker image prune
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Show Docker disk usage by images, containers and volumes

#docker system df -v
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Read first, then run.

The commands on myline.de act directly on servers, files and databases. A wrong path or placeholder can delete data irreversibly or make a server unreachable.

  • All commands are provided without warranty and are not tested on every system.
  • Understand what a command does before running it, and check every placeholder.
  • Make a backup first and, if possible, try it on a test system.
  • You run commands at your own risk. Liability for damages is excluded to the extent permitted by law.