Hello,
As this question came up today during our Office Hours, wanted to give you the official stance of Support on this and make it available to the public.
We treat those cloud providers the same as we would treat any On Premise/Hosting arrangement. We do not support infrastructure, so if the customer chooses to attempt deployment on one of those platforms, that’s their business. We just support our application running on the stated architecture stack.
We have customers who are running CA PPM on AWS and Azure both, but if they are, they are unsupported if the problem is related to operating on those platforms. We have had few problems reported with multicast when the platform provided was not allowing it. CA PPM requires multicast to properly function, so before making the decision to choose any cloud provider please make sure they can and will support CA PPM requirements.
Our SAAS environments are fully setup to accommodate CA PPM, so this option is also available for you.
Hope this helps -Nika