Publish multi-arch manifests to DockerHub

[rittneje]

It seems that with Python 3.13, the images published to DockerHub now include an architecture suffix (e.g., "amazon/aws-lambda-python:3.13-x86_64"). This makes the images difficult to use in an architecture-agnostic way.

Please start publishing multi-arch manifests (aka, "shared tags") with no version suffix (e.g., "amazon/aws-lambda-python:3.13").

[jtuliani]

Hi @rittneje. Thanks for the feedback. Multi-arch manifests are already published to our public AWS ECR repository, see https://gallery.ecr.aws/lambda/

I assume you're referring to our images on DockerHub at https://hub.docker.com/r/amazon/aws-lambda-python/tags ? It would be useful to understand your use case / need for using DockerHub rather than ECR, to be better able to prioritize this request.

[rittneje]

@jtuliani I don't think there's a specific reason for DockerHub over ECR, except that I don't believe we currently have an Artifactory proxy configured for the latter.

That said, I am very surprised to hear about this discrepancy between the two. The README merely states the images are published to both, which to me implies they ought to be interchangeable.

[jtuliani]

...except that I don't believe we currently have an Artifactory proxy configured for the latter.

That's actually a great reason, thank you. I can't make any promises right now, but I'll find out if we can address this.