feature request: buildah manifest functionality

[grooverdan]

The docker experimental manifest commands to to create multiarch manifests are quite nice and it would be nice to do these without a docker daemon.

The create, push, annotate and inspect subcommands are sufficient.

ref: https://docs.docker.com/engine/reference/commandline/manifest/#usage

[rhatdan]

@mtrmac @vrothberg WDYT
I think a similar request was made for podman or skopeo?

[mtrmac]

Yes, containers/podman#713 .

[mtrmac]

Also containers/image#400 is a very good starting point.

[rhatdan]

@mtrmac Could you pick up with @nalind left off to finish the PR?

[konrad-ohms]

If you need a workaround for now, you could have a look into https://github.com/estesp/manifest-tool.
I am using buildah to push the images and use the manifest tool to produce multiarch manifests afterwards. That should work without requiring a Docker installation.

[grooverdan]

And even better, https://github.com/estesp/manifest-tool being an Apache-2 licensed go implementation could be be used as code source and test reference.

[rhatdan]

@vrothberg Is this something you would want to look into?

[cpmoore]

Any updates on this issue?
It’s a feature our organization needs due to multiple architecture images.
It’s even more important with OpenShift 4 moving away from docker.

[rhatdan]

Well we have it in Podman now. Is that good enough, or do we need it in Podman?

[rhatdan]

Fixed in master.