How to delete docker images in Jenkins Job

Question

I want to delete the remains of some Docker-operations from within Jenkins.

But somehow the following line does not work...

The issue seems to be with the parenthesis.

Any advice?

if [ docker images -f dangling=true -q|wc -l > 0 ]; then docker rmi --force $(docker images -f dangling=true -q);fi

`docker images --quiet --filter=dangling=true | xargs --no-run-if-empty docker rmi` — Jinna Balu, Mar 14 '19 at 14:01

score 7 · Accepted Answer · answered Mar 15 '18 at 06:35

7

Newer versions of Docker now have the system prune command.

To remove dangling images:

$ docker system prune

To remove dangling as well as unused images:

$ docker system prune --all

To prune volumes:

$ docker system prune --volumes

To prune the universe:

$ docker system prune --force --all --volumes

answered Mar 15 '18 at 06:35

Behrang

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`docker system prune` will remove all unused data(all stopped containers, all networks not used, all dangling images...), if only want to remove **dangling** images, `docker image prune` is much better. – Corey Feb 22 '19 at 09:02
`docker system prune` is not recomanded when you don't have backup. Use the specific command to specific cases. – Jinna Balu Mar 06 '19 at 18:22
Will this remove images of other jobs currently running? – Ray Mar 18 '20 at 19:35

herm · Answer 2 · 2017-07-28T07:21:25.817

1

docker image prune deletes all dangling images. Docker image prune -a deletes unused images too. This thread explains what dangling and unused images are. In short: Dangling image --> No tag, unused images --> no container attached.

edited Jul 28 '17 at 07:21

answered Jul 27 '17 at 22:43

herm

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Thanks for your answer, herm. Unfortunately "docker image" does not exist on my machine... Might have been the cleaner, shorter solution... – Jul 28 '17 at 07:18
You mean docker image prune does not exist? That is a relatively new command but docker image ls and others are old. – herm Jul 28 '17 at 07:22
Yes it does not exist.... The docker documentation also shows a * beneath docker image. But I don't know what that star means. – Jul 28 '17 at 07:29

Jinna Balu · Answer 3 · 2019-03-06T18:23:39.753

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Remove Dangling Images

Use -xargs will need --no-run-if-empty (-r) to bypass executing docker rmi with no arguments

docker images --quiet --filter=dangling=true | xargs --no-run-if-empty docker rmi

Use normar bash comand to check and delete

 if docker images -f "dangling=true" | grep ago --quiet; then
    docker rmi -f $(docker images -f "dangling=true" -q)
 fi

edited Mar 06 '19 at 18:23

answered Mar 06 '19 at 18:10

Jinna Balu

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score 0 · Answer 4 · answered Jul 27 '17 at 22:26

0

I would store the output of the docker images command and then use it:

images=$(docker images -f dangling=true -q); if [[ ${images} ]]; then docker rmi --force ${images}; fi

answered Jul 27 '17 at 22:26

Andrew

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How to delete docker images in Jenkins Job

4 Answers4