op Docker Image is amd64-only

austin

I have a new Apple Silicon (M1) Mac and I was going to try running the docker image for play purposes, but I noticed that it is linux/amd64, and the M1 works better with linux/arm64/v8.

WARNING: The requested image's platform (linux/amd64) does not match the detected host platform (linux/arm64/v8) and no specific platform was requested

Because the rest of my team hasn’t yet upgraded to Apple Silicon, when I was doing some docker tooling development, I needed to make sure that both versions were built (GitHub actions does most of this for me; I am not sure how I would do so manually): https://github.com/KineticCafe/docker-sqitch-pgtap/blob/main/.github/workflows/build-and-push.yml

It would be good if the docker image were built for multiple architectures.

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simon_1P

Thank you @austin for sharing this feedback with us! I agree we should add builds for ARM64 as well. I'll look into what's needed on our end to make this happen and see what I can do for you. Have a good day! :smile:

simon_1P

Hi @austin, we've just released a new version of our CLI, which adds a build for AMD64. We're not (yet?) building Docker images for AMD64 as well. You can include the new binaries in your own images build for AMD64. Hope this helps you.

austin

Cool.

I recently needed to look into how to cross-build images, and it’s through buildx. Specifically, for my case, I needed to ensure that I was building a linux/amd64 version:

docker buildx build --platform linux/amd64 -t $(IMAGE) . --load

If you change that to something like:

docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v6 …

Then you should automatically get a multi-arch image. There’s more to it than just that, and I’ve only scratched the surface of it, but it is impressive.

ag_yaron

Thanks for the additional info, Austin!
Much appreciated :)