The `getBaseDomainID` function in `cmd/infra/azure/create.go` was using an `if` statement instead of a `for` loop to iterate through DNS zone pages, causing it to only process the first page of results instead of all available pages.

OpenShift 4.21 

Always reproducible when there are multiple pages of DNS zones in Azure

1. Set up Azure environment with multiple DNS zones (requiring pagination)
2. Run HyperShift Azure infrastructure creation commands
3. The function will only check the first page of DNS zones
4. If the target DNS zone is on subsequent pages, the function will fail to find it

The function only processes the first page of DNS zones from the Azure DNS API, potentially missing the target DNS zone if it appears on later pages.

The function should iterate through all pages of DNS zones to find the target zone, ensuring no zones are skipped during the search.