How to remove unused Docker containers and images

remove-docker-containers.md

1. Delete all containers

    $ docker ps -q -a | xargs docker rm
   

-q prints only the container IDs -a prints all containers

Notice that it uses xargs to issue a remove container command for each container ID

2. Delete all untagged images

    $ docker rmi $(docker images | grep “^<none>” | awk ‘{print $3}’)
   

awk must use a single quote (this filters all image IDs)

rm non-ascii chars

docker rmi $(docker images | grep "^<none>" | awk '{print $3}')

I have read it somewhere
It is working , special for deleting <none> images
$ docker-machine stop default
$ docker-machine start default
$ docker images -q | xargs docker rmi
or
$ docker-machine restart default
$ docker images -q | xargs docker rmi

How to remove a container which has Image ID but not Name and Tag... ?

This worked for me :) " $ docker rmi $(docker images -q -f dangling=true) "

I recieved an error " No space left on device " since I used 100% of my iNodes. Running this command worked for me:

docker rmi $(docker images -q --filter "dangling=true")

Another way of removing all images is:

docker images -q | xargs docker rmi

If images have depended children, forced removal is via the -f flag:

docker images -q | xargs docker rmi -f

I use this script

#!/bin/bash

# Delete all stopped containers
docker rm $( docker ps -q -f status=exited)
# Delete all dangling (unused) images
docker rmi $( docker images -q -f dangling=true)

Edit

xargs with --no-run-if-empty is even better as it does cleanly handle the case when there is nothing to be removed.

#!/bin/bash

# Delete all stopped containers
docker ps -q -f status=exited | xargs --no-run-if-empty docker rm
# Delete all dangling (unused) images
docker images -q -f dangling=true | xargs --no-run-if-empty docker rmi

+1

jarek-przygodzki works for me :)

How would I do this on Windows? There's no xargs or $(...) syntax

How would I do this on Windows? There's no xargs or $(...) syntax

It should work from Docker Quickstart Terminal created by Docker Toolbox installer.

!/bin/bash

Delete all containers

docker rm $(docker ps -a -q)

Delete all images

docker rmi $(docker images -q)

docker rmi $(docker images -f "dangling=true" -q)
or
docker images | grep "weeks ago" | awk '{print $3}' | xargs docker rmi

or
docker ps -a | grep Exited | awk '{print $1}' | xargs docker rm

@HWiese1980

FOR /f "tokens=*" %i IN ('docker images -q -f "dangling=true"') DO docker rmi %i

Tested on 1.12.3 (Windows and Linux (centos 7))

Linux

Containers

docker rm $(docker ps -a -q)

Images

docker rmi $(docker images -q)

Windows

Containers

FOR /f "tokens=*" %i IN ('docker ps -a -q') DO docker rm %i

Images

FOR /f "tokens=*" %i IN ('docker images -q -f "dangling=true"') DO docker rmi %i

As of 1.13.0, see the new prune commands:

docker container prune   # Remove all stopped containers
docker volume prune      # Remove all unused volumes
docker image prune       # Remove unused images
docker system prune      # All of the above, in this order: containers, volumes, images

Bonus:

docker system df         # Show docker disk usage, including space reclaimable by pruning

New Data Management commands PR: docker/docker#26108

In Windows using PowerShell, this might work:
&'C:\Program Files\Docker\docker' ps -a | foreach-object { $l = $PSItem.ToString(); $c = $l.Substring(0, $l.IndexOf(" ")); if ($c.ToLower() -ne "container") { $cmd = "c:\Program Files\Docker\docker.exe"; & $cmd "rm" $c } }

Worked great on the Windows container! Thanks!

PowerShell

docker ps -a -q | % { docker rm $_ }
docker images -q | % { docker rmi $_ }

Great gist! Exactly what I was looking for

If you dislike shell commands try installing docker for python with for instance pip install docker and use the following script to remove junk images

#!/usr/bin/python

import docker
dockDaemon = docker.from_env()

imgid = [I.id for I in dockDaemon.images.list() if I.attrs["RepoTags"]==[u'<none>:<none>']]

for id in imgid:
   try:
        print "Trying to remove image",id
        dockDaemon.images.remove(id)
        print "Removed image",id
    except docker.errors.APIError,e:
        print "skipping image ",id,"as this is still in use"

@ianmalott list plus:

docker network prune

mark

I am using all those commands. I am getting an error while deleting an image which has dependent containers. I would like to know is there any way of deleting images which does not have any containers associated with it. Because I am running docker rmi command from jenkins job as docker rmi $(docker images -q). This command fails when removing an image which has dependent containers and due to that jenkins job is failing. Any suggestions on this.

I have 3 ghost containers that I can't get rid of as they keep reappearing with another ID. I have tried all of the above examples even including one I found in a book which is: "docker update --restart=no <container_id or name>.
Any ideas on how I can make these go away???
Like a T-Shirt I saw "How can I miss you if you won't go away"
Thanks.

Finally got rid of those ghosts. Did "docker update --restart=no <container_id or name> or list of containers" and then did a "systemctl restart docker" and then they were gone!!!

I lied. 3 minutes after Docker restarted the 3 containers plus 2 more were back.

Does anyone know how I can completely get rid of those unwanted containers???

Thanks.

@GerBreOwn

docker stop $(docker ps -a -q) &
docker update --restart=no $(docker ps -a -q) &
systemctl restart docker

docker image prune

Does anyone know if there is a Windows cheat sheet for all of those commands ?

For Mac OSX I used:

docker rmi `docker images`
docker rm -f `docker ps -a`

Can anybody confirm / improve this command. It seems a bit tricky to me.