Introduction
For today’s post, let’s take a look at an architecture example where you want to provide a geographic deployment of your webapp by using a cloudbased WAF (like Cloudflare, or Akamai, …).
High Level Setup
So what will we be setting up & testing today?
The user will receive a url that is powered by “Azure Traffic Manager”. That will have three endpoints ; one in Europe, one in the US and one in Asia. These endpoints will be powered Cloudflare and back by an Azure Webapp. You’re question will probably be ; “Why use that sequence?” Because the Traffic Manager is DNS based and will do a “basic” HTTP check. If you would setup the Traffic Manager behind Cloudflare/Akamai/…, then you would see the source IPs of that service. Thus you would be unable to route the clients to the nearest location.
Karim Vaes 