You don't need to containerize your application to run it on App Service. However, App Service does support containerized web apps using what's known as Web App for Containers. ... NET Framework ASP.NET application on App Service, then they ought to containerize it.

Why should I Containerize my app?

Benefits of Containers:

Containers enable rapid deployment, patching and scaling of applications. ... The portability aspect in containers enables easy and quick deployment to multiple hardware platforms and operating systems. Consider this option as a cost-saving advantage in your app modernization journey.

When should you not Containerize an application?

So, one example of when not to use containers is if a high level of security is critical. They can require more work upfront: If you're using containers right, you will have decomposed your application into its various constituent services, which, while beneficial, isn't necessary if you are using VMs.