Default image architecture has changed from AMD to ARM

[nima-champ]

Hi!

We were dealing with some flakey builds today and yesterday with docker/setup-buildx-action failing to setup BuildX, without some useful logs. The pull was timing out, and wasn't like an everyday issue to be obvious to my eyes. Can imagine this might be happening elsewhere, might be worth a look. Once I pulled the image manually, saved it in a private repository and pulled it from over there, I finally had some good logs telling me the architecture is not correct (exec format error).

Best, Nima

[crazy-max]

Once I pulled the image manually, saved it in a private repository and pulled it from over there, I finally had some good logs telling me the architecture is not correct (exec format error).

Can you show a repro please? I guess you used docker pull / docker tag / docker push? If that's the case you might have pulled the image on arm host.

Best is to use https://docs.docker.com/reference/cli/docker/buildx/imagetools/create/ for such case like:

docker buildx imagetools create --tag foo/bar:latest moby/buildkit:latest