Support pulling manifest lists

[te-yd]

Feature request description

I would like to have support for pulling a manifest list if the referenced tag is one.

Currently podman supports push manifest list to repo but not pulling all the images in the manifest, this case occurred to me while was running a pipeline and needed to pull the intermediate image pushed to repo incase of failures.

Suggest potential solution

Support podman manifest pull for pulling lists.

Have you considered any alternatives?

I have tried skopeo to check if the feature existed but no avail, I could not pull an entire manifest list using an existing tool, only way i got around it was to make a http call to get the list json and do the pull and tag manifest list manually.

Additional context

No response

[Luap99]

cc @mtrmac

[mtrmac]

Generally c/storage images are single-arch; this would be something specific to the podman manifest … code.

[cyqsimon]

Ran into this today. Yes this would be very desirable. Related #18896.

Also, podman manifest save & podman manifest load for working in an offline environment.