Azure Web Apps is a peculiar case as it uses ARR (Application Request Routing) by using cookies. By enabling this, they get the functionality of the sticky sessions. A session is called as sticky session when subsequent requests that are made within an established session get processed by the same instance of an app that served the very first request of the session. However if you’ve built your app to be stateless ARR actually limits scalability of your system. It also disallows the Azure Web Apps to be configured behind a highly efficient web server like nginx.

In this blog post, we’ll learn how to configure nginx server so that you can configure multiple Azure Web Apps behind it. Read More »