Scaling App Service apps

In Chapter 1, Azure and Cloud Fundamentals, we mentioned that the cloud offers elasticity so that it can scale and use as much capacity as you need when you need it. We specifically touched on scaling up (that is, vertical scaling) and scaling out (that is, horizontal scaling). Let’s jump into the portal once more and take a look:

1. From within the Azure portal, open either your App Service or the App Service plan and open the Scale up blade. If you’re in the App Service, notice that it has (App Service plan) to point out that it’s the App Service plan controlling resources, as we discussed earlier in this chapter. Don’t change anything here; just notice that these options increase the total resources available – they don’t increase instances. A restart of the app would be required to scale up.
2. Open the Scale out blade and notice that this is currently set to a manually set instance count. While this can be...