 You can use Azure App Service anytime you want to take an existing brownfield application, a web app, and move it to the cloud. The beautiful thing is when you move it, you don't have to bring the server with you. You're never going to have to set up another patch on your machine, you never have to reboot that particular machine, we're going to take care of all that for you. It doesn't matter if you're doing Node.js, Python, you're building a war file, or you're doing .NET, all those applications can run unmodified and that's the key. We don't have to learn anything about Docker, we don't have to change our application in any way. The development is exactly the same, the code is exactly the same, but we're going to allow you to now take full advantage of the cloud. You can scale it up and you can scale it out at the click of a button. You're no longer held hostage to the infrastructure that you have on-prem, and you no longer have to baby or monitor those particular servers. I love it as a developer because I just focus on delivering value and the rest of the entire infrastructure is handled for me.