Today I found out that Azure AD Domain Services is available from the new Azure Portal! The documentation is still based on using the old portal. Now you can finally use Azure Resource Manager for the VNET and deployment. Creating your first Azure AD Domain Services instance will take quite some time but is really easy to configure. Specify the DNS name of the domain, a resource group, a VNET with subnet and a subscription and you’re good to go. Enjoy this feature in the new Portal!
— Jean-Paul (@JPvR_NL) July 3, 2017