1. Availability of OCP arm64 images in Azure marketplace

• The customer is testing multi-arch clusters with x86_64 and arm64 VMs.

As per document it is possible to reference images from the Azure market place in a `machineset`.

• However, only x64 images are available.

$ az vm image list --publisher redhat-limited --sku rh-ocp-worker --all
Architecture Offer Publisher Sku Urn Version
-------------- ------------- -------------- ------------------ -------------------------------------------------------------- --------------
x64 rh-ocp-worker redhat-limited rh-ocp-worker redhat-limited:rh-ocp-worker:rh-ocp-worker:4.8.2021122100 4.8.2021122100
x64 rh-ocp-worker redhat-limited rh-ocp-worker-gen1 redhat-limited:rh-ocp-worker:rh-ocp-worker-gen1:4.8.2021122100 4.8.2021122100 

• Can we provide arm64 images as well in the gallery?

2. Why does the customer need this? (List the business requirements here)

• Slightly inconvenient for the customer as customers need to upload an image themselves instead of just relying on those from the marketplace.