Two good points here OP. Type docker image ls to see all the images you currently have locally - you’ll possibly be surprised how many. All the ones tagged <none> are old versions.
If you’re already using github, it includes an package repository you could push retagged images to, or for more self-hosty, a local instance of Forgejo would be a good option.
I’d also like to add that you can save an image to a local file using docker image save and load them back using docker image load. So, along with the options mentioned above, you have plenty of options to backup images for offline use.
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Two good points here OP. Type
docker image lsto see all the images you currently have locally - you’ll possibly be surprised how many. All the ones tagged<none>are old versions.If you’re already using github, it includes an package repository you could push retagged images to, or for more self-hosty, a local instance of Forgejo would be a good option.
I’d also like to add that you can save an image to a local file using
docker image saveand load them back usingdocker image load. So, along with the options mentioned above, you have plenty of options to backup images for offline use.