The docker engine on Fedora CoreOS does not support the “buildx” subcommand which is needed to build container images for multiple architectures. I believe this is because the docker engine installed on CoreOS is based on Moby. Does anyone have any suggestions on how to get the docker engine with buildx support?
I did try Podman but the base container I am using is giving me errors when trying to build with Podman. After some digging, it seems that the base image is not OCI-compliant, unfortunately there is nothing I can do about that as it is a third party container.