Support s390x Architecture

[Joshua-Beha]

Is your feature request related to a problem? Please describe.
Currently, I cannot run the RabbitMQ operator on s390x as the images on Dockerhub are built only for arm64 and amd64.

Describe the solution you'd like
I would like to run the RabbitMQ operator on s390x using officially available images

Describe alternatives you've considered
I have considered attempting to build the images myself.

Additional context
Support for ppc64le would also be cool.

[mkuratczyk]

How about a pull request? There's literally one company in the world that needs this :)

[michaelklishin]

This is open source software. The way open source software works is that those with very specific needs have the tools to scratch their own itch.

I find this particularly important to mention because this one aforementioned company never contributed to RabbitMQ, despite offering it for $$$ as a service.

[michaelklishin]

I suspect that "the official image" in this case is the Docker community one, so this issue does not belong to this repo https://github.com/docker-library/rabbitmq

[Joshua-Beha]

Hi @mkuratczyk and @michaelklishin after some further investigation the RabbitMQ cluster operator pod can be built on s390x without changes using the Dockerfile in this repository.
Following the quick start guide in your README I was able to deploy the operator and stand up a cluster without issue on an s390x OpenShift cluster. Are there other tests you would like me to run to test for compatibility?

[Joshua-Beha]

Also, I don't know what the RabbitMQ Cluster Operator uses for a build process but I could make some changes there if required. It looks like someone in the RabbitMQ community can build for s390x given the RabbitMQ pod is available for s390x (see here), so I would assume it would also be possible here.