Build the pulp-web for arm64 architecture

[AndersBennedsgaard]

Is your feature request related to a problem? Please describe.

I run an arm64-only cluster, and I can't get the web-server to run.
Looking at https://quay.io/repository/pulp/pulp-web?tab=tags, it is only build for linux/amd64

Describe the solution you'd like

Build the web server for arm64 arch

[mikedep333]

Hi @AndersBennedsgaard ,

We use the image docker.io/centos/nginx-116-centos7 currently to build our image. The centOS project isn't publishing any more nginx images though, and even the nginx centos8 images are AMD64 only.

We should switch to the upstream nginx images, but it might require additional changes to our config, docker-compose and pulp-operator. So we aren't sure how soon we will implement the switch.

-Mike