Azure Point-to-site VPN Setup with custom app

Here is a guide on how to build a Point to site (P2S) VPN in Azure with your own App Registration/Enterprise App. We will be using terrafform but we will try to explain it how to do it by hand

Prerequisits

This guide assumes that you already have a resource group with a VNET inside.

We will be configuring a custom app, not using the generic Azure VPN client enterprise app.