Thanks for all the great replies!
I don’t know if this will help you, but I wrote a tutorial on how to setup a local registry on the LAN on a Fedora Server or RHEL-compatible server. https://techne.hyperreal.coffee/tutorials/setup-a-lan-container-registry-with-podman-and-self-signed-certs/
But anyway, it’s unlikely docker.io or quay.io or ghcr.io will go completely offline. If anything they might experience a DDoS, in which case I imagine they have competent devops employees who would ensure they become functional again within a matter of hours.
Very interesting thanks!
I mean you have the current image cached on the local server when you use it.
Sorry for the link dump - I just glanced over the content and it seems like this might help you:
https://www.warpbuild.com/blog/docker-mirror-setup
https://medium.com/@shaikrish27/deploying-a-docker-registry-mirror-as-a-container-59565ff92c48
https://blog.alexellis.io/how-to-configure-multiple-docker-registry-mirrors/
Retag and push to a local registry. Lots of options out there for setting one up.
Honestly, you already have the image locally if you’ve pulled it. You don’t really need to run a registry unless you’re dead set on it. You can also flatten and export containers for backup if you really want.
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.
Honestly, you already have the image locally if you’ve pulled it.
I guess not everyone treats their PC as an ephemeral storage, huh? I don’t trust anything that’s available only locally to survive.
