Join a Domain in a Azure Virtual Network
To access a share on a Virtual Machine it is required for the Cluter to Join a Domain inside the Virtual Network. Please make it possible to join the cluster to a domain.
Serge Berwert commented
That is already possible. To do that you have to create a cluster with ARM Template. There you have a section Virtual Machine Scale set. Under extension just add the domain join extension. We did that on our cluster. Works fine. But you could also consider using file sharing over Storage Account.