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Show Docker disk usage by images, containers and volumes

harmless rootDockerdebian, ubuntu
root@server
docker system df -v

Summarizes the disk usage under /var/lib/docker by images, containers, local volumes and build cache. The RECLAIMABLE column shows what is unused and could be cleaned up. With -v, a breakdown per image, container and volume follows.

Note: Without -v, only the short overview appears. Docker commands require root or the docker group.

Also searched as

  • docker disk usage
  • what is using space in /var/lib/docker
  • docker system df

Related one-liners

All in Docker

Clean up unused Docker data

#docker system prune
cautionDocker

Remove dangling Docker images

#docker image prune
cautionDocker

List unused Docker volumes

#docker volume ls --filter dangling=true
harmlessDocker

Remove all unused Docker data including volumes

#docker system prune -a --volumes
destructiveDocker

Show the disk usage of Docker containers

#docker ps -a --size
harmlessDocker

Analyze disk usage interactively with ncdu

$ncdu -x /var
harmlessFilesystem

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