regression: “guix pack” Docker images no longer work on AWS

[Ricardo Wurmus]

Hi Guix,

I’m using “guix pack”-generated Docker images on AWS ECS.  On June 17,
2020 I generated and uploaded an image that works fine.  According to
AWS this image has this manifest type:

    application/vnd.docker.distribution.manifest.v2+json

Today I generated a new image that does not work.  It cannot be opened
by ECS; it cannot find /bin/sh, which exists.  The manifest type is now
recognized as

    application/vnd.oci.image.manifest.v1+json

It also now detects an “Artifact media type” and prints it as

    application/vnd.oci.image.config.v1+json

I’d very much like to push a newly generated image.  Is there a way to
generate the image as it was done in the summer of 2020?

Note that both these images appear to work “fine” with a local Docker
installation (i.e. when run with “docker run”).  (When running /bin/sh
in the container interactively it appears to freeze whenever I try to
actually run a command, but perhaps I’m just holding it wrong…)

-- 
Ricardo