The demo does not show proper region if the registry uses private link

[jmasengeshomsft]

I think this demo works because we are parsing a host entry that looks like this: xxxxxxx.<region>.cloudapp.azure.com

If you are using a container registry with a private link, the host entry looks like this in both regions:
<acr name>.privatelink.azurecr.io

How can we demonstrate geo-replication capabilities with a private link?