Configuring routing
To enable load balancing with Azure Application Gateway, we need to configure routing. To explain that concept a little bit – we need a way to connect our frontend (the part of the architecture responsible for handling incoming requests) with backends (services hosting our application logic). We will explain that concept using the Azure portal and the Azure Application Gateway configurator.
In the Azure portal, click on + Create a resource and search for Application Gateway, then click on the Create button to start the process:
Figure 23.2 – Starting configuration
The basic configuration of my instance looks as follows. I selected StandardV2 tier (no WAF) and created a virtual network directly on that screen (Azure Application Gateway cannot be created without integration with a virtual network):
Figure 23.3 – Basic configuration
There are additional features that we could enable right now...