Attempting to follow the instructions at: https://dev.office.com/patterns-and-practices-detail/1922
I have installed:
Visual Studio 2017 (includes Azure SDK)
I am able to create the Azure Cloud Service with a WebRole and a Worker Role.
However, there is no "convert" menu when I right-click on the WebRole project in Visual Studio Solution folder; therefore there is no "Convert to app for SharePoint project" sub menu.
Not sure if this functionality was removed in VS2017 or if there is another requisite....