qemu-x86_64-static: can't COPY from qemu-user-static:x86_64-x86_64 image about qemu-user-static

[umarcor]

@Bounz, AFAIK, all the resources provided by this project are for x86_64/amd64 hosts only. Hence, when you provide qemu=x86_64, you are asking it to extract qemu-x86_64-user from an image meant to be executed on x86_64 hosts. For (now) obvious reasons, that file does not exist, because there is no required architecture conversion. Such a context would fall on the KVM area of QEMU, not qemu-user.

Should you want to generate images for hosts other than x86_64 (for example, execute regular docker containers on RPi), I suggest you to have a look at dbhi/qus. Unlike this repo, qus targets both multiple host architectures and multiple guest containers. See e.g. dbhi/qus#2 (comment).

--build-arg arch=arm32v7 --build-arg qemu=arm

I believe you want to set qemu=armhf instead. qemu=arm would better match armv32v6.

[bmw]

https://github.com/multiarch/qemu-user-static/releases/download/v5.0.0-2/qemu-x86_64-static exists. Why can't the file be in multiarch/qemu-user-static:x86_64-x86_64 to allow this pattern?

[Metabaron1]

I have checked multiarch/qemu-user-static:x86_64-x86_64 content and it's empty... I was looking for this file in docker image to have an uniform deployment for every architecture, even if it would lead to run x86 on x86 : what's the problem as it's working if I get the file from tarball? I just would prefer to get this file from image because it's simplier to deploy. Why do you prevent it?
As you provide the file in tarball, this file should also be provided in docker image, or else remove both ...