Hi, @KingJava
Answer)
Azure App Service is an HTTP-based service for hosting websites, API servers, and more.
So I think the support engineer said he needed a website.
However, since the default website is deployed, you can create the App Service itself without the website.
Also, you do not need to use the database.
Get an overview and concepts of App Serivce.
https://learn.microsoft.com/en-us/azure/app-service/overview
A simple Quick Start is available so you can understand it once you touch it!
PS)
Please tell us the scenario how you want to use the console application.
It may be better to use other services. Of course, there is also a way to run a console application with App Service.