Azure storage account (for PaaS only). See
https://docs.microsoft.com/en-us/azure/storage/ for details on how to set up an Azure storage account. You need to create a version one (Classic) storage account.
Windows Azure support for Visual Studio. This software is known by various names, such as Windows Azure Tools, Windows Azure SDK, or Azure Development
Workload. This SDK is required on any system that deploys
Enterprise Server for .NET roles to Azure.
Use the Visual Studio Installer to add the Azure Development workload to Visual Studio.