error while pushing image using buildah push

[rakeshgm]

I am trying to build an operator for different architectures. After I run the below command
buildah bud --manifest ${IMG} --arch s390x the manifest file is correctly created, but when I run buildah push ${IMG} I get the following error.
Referencing from here

Error: pushing image "docker.io/repo/image:tag" to "docker://docker.io/repo/image:tag": no image found in image index for architecture amd64, variant "", OS linux: image not known

I am not sure why amd64 is being selected when I am building for s390x
any help with what could be wrong here?

buildah --version
buildah version 1.29.1 (image-spec 1.0.2-dev, runtime-spec 1.0.2-dev)

[abdelghanimeliani]

hey @rakeshgm im not sure , but i think you should specify the destination path (registry/username/imagename:tag) and the creds to push