b96135c218065188be9dfe1fea1dff76b6f66e4f,app/grandchallenge/container_exec/tasks.py,,validate_docker_image_async,#,15

Before Change

            instance.image.save(uploaded_image.name, File(f))

    try:
        with instance.image.open(mode="rb") as im, tarfile.open(
            fileobj=im, mode="r"
        ) as t:
            member = dict(zip(t.getnames(), t.getmembers()))["manifest.json"]
            manifest = t.extractfile(member).read()
    except (KeyError, tarfile.ReadError):
        model.objects.filter(pk=pk).update(
            status=(
                "manifest.json not found at the root of the container image file. "

After Change

    image_sha256 = manifest[0]["Config"][:64]

    config = _extract_docker_image_file(
        model, instance, f"{image_sha256}.json"
    )
    config = json.loads(config)

    if str(config["config"]["User"].lower()) in ["", "root", "0"]:
        model.objects.filter(pk=pk).update(
            status=(
                "The container runs as root. Please add a user, group and USER "

Instances