Remove Docker Images Older Than One week/month/year Automatically

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Reason

I’m using rancher pipelines to deploy my service immediately after I push my code to GitHub, it always creates a new image but would never clean it.

I guess other continuous integration solutions would do the same.

Next, I’m going to share some lines of code on how to deal with it.

Steps

Let’s say the project I’m going to build is named GetShitDone.

The way to clear old images is as simple as copy and paste the codes below.

The images that are still in use would be protected and wouldn’t be removed.
It’s safe to use these commands.

Remove images older than one week

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project_name=GetShitDone
docker images | grep ${project_name} | grep 'weeks ago\|months ago\|years ago' | awk '{print $3}'| xargs docker rmi

If you would like to keep the images for months or longer, you can remove the weeks ago and months ago part.

Only remove images earlier than one month

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project_name=GetShitDone
docker images | grep ${project_name} | grep 'months ago\|years ago' | awk '{print $3}'| xargs docker rmi

And clean images created one year ago

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project_name=GetShitDone
docker images | grep ${project_name} | grep 'years ago' | awk '{print $3}'| xargs docker rmi

That’s all of it, cheers.