Multi-arch Docker build

[rnsc]

Hello,

Would it be possible to have a multi arch Docker build so that we can pull from the Docker Hub even on ARM64 platform?

Thanks,

Kind regards,

[yselkowitz]

We would like to see this as well for all four Red Hat architectures: linux/amd64,linux/arm64,linux/ppc64le,linux/s390x. This can be accomplished with either docker buildx or recent versions of podman.

[edenhill]

PRs welcome :)

[yselkowitz]

It's a matter of how the container build is controlled, but I don't see any automation in the repo. How are you driving the container builds?

[edenhill]

I manually build the alpine docker image and upload it to docker hub.

[yselkowitz]

In that case, instead of your usual docker build and docker push commands, you can use docker buildx, e.g.:

docker buildx build --platform linux/amd64,linux/arm64/v8,linux/ppc64le,linux/s390x --push -t docker.io/edenhill/kcat:1.8.0 .

(Note that if you're using docker buildx for the first time, some initial setup may be required; see the documentation for details.)

[rnsc]

Maybe we could add a GitHub workflow then?

[edenhill]

Sounds good 👍