aarch64 rpm fails to install when using an arm64 docker builder

[jamshid]

Elasticsearch version (bin/elasticsearch --version):

7.12.0

Plugins installed: []
none
JVM version (java -version):
none using packaged jdk
OS version (uname -a if on a Unix-like system):
the centos:7.9.2009 on
Description of the problem including expected versus actual behavior:

I know I can use your official images but trying to build my own centos:7 image and install the aarch64 rpm. But docker buildx only creates an arm64 builder and rpm/yum do not consider your aarch64 rpm to be compatible.

I thought aarch64 and arm64 were equivalent. Is this expected behavior? Is there a workaround? rpm --force did not help.

Steps to reproduce:

1. Try to build an arm64 image from a Dockerfile that is FROM centos:7.9.2009.
   docker buildx build --platform linux/arm64 ...
2. yum install -y https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.12.0-aarch64.rpm

Provide logs (if relevant):
yum fails with:

Cannot add package /deliverables/elasticsearch-7.12.0-aarch64.rpm to transaction. Not a compatible architecture: aarch64

[dnhatn]

Thanks very much for your interest in Elasticsearch.

This appears to be a user question, and we'd like to direct these kinds of things to the forums. If you can stop by there, we'd appreciate it. This allows us to use GitHub for verified bug reports, feature requests, and pull requests.

There's an active community in the forums that should be able to help get an answer to your question. As such, I hope you don't mind that I close this.

[elasticmachine]

Pinging @elastic/es-delivery (Team:Delivery)