Add WebRole.cs - and it invoked - on an existing ASP.NET MVC website converted to a web role

Question

I have an ASP.NET MVC 4 site that works fine in Azure WebRole. The ASP.NET MVC project was launched on its own, after which I added the Azure Cloud Service project to the solution and added the ASP.NET project / site as one of the "roles" of the service (so that it appears in the Roles folder).

My problem is that I would like to work with the WebRole.cs file in an ASP.NET MVC project, but no matter what I tried to do, it seems that it just never gets called when deployed. OnStart and Run redefinition (which, as I know, should never leave the loop) - these, apparently, are never called.

But if you started a new CloudService project and added an ASP.NET MVC project at that time from the very beginning, it automatically has a WebRole.cs file, so I assume that I need to configure something for WebRole.cs (in fact, WebRole class, which inherits RoleEntryPoint) to call. What could it be?

using System; using System.Web; //using Microsoft.WindowsAzure.StorageClient; using System.Diagnostics; using System.Threading; namespace Us.WebUI { public class WebRole : Microsoft.WindowsAzure.ServiceRuntime.RoleEntryPoint { public override bool OnStart() { return true; //return base.OnStart(); // CALL THIS??? } public override void Run() { while (true) { Thread.Sleep(TimeSpan.FromSeconds(30)); try { EmailFuncs.SendEmailToUs("An email from our WebRole?????", "Email me this, email me that."); } catch { } } } } } 

UPDATE: Thank you, the question has been answered. But I will add: while doing this, although it clearly worked (fully deployed and in the emulator), suddenly I had problems with the full publication of the site. After the azure publication, it took 3 hours:

Checking the storage account "xyz" ...> Downloading the package ...> - Update ... [remained here for 3 hours], this error failed: the server detected an internal error. Repeat request. So I was wondering if I need to override OnStop in WebRole.cs?

UPDATE 2: These previous issues have been fixed and had nothing to do with this issue. In fact, I found out about this: if you get any warnings created in your assembly, Azure will often not work with them, even if they do not create problems locally or on other hosts. Since then, I have tried much harder to solve problems with assembly warnings (but it is critical that with the warning codes many warning types be turned off that you want to ignore!).

Answer 1

Adding a class to your web project that inherits from RoleEntryPoint is enough, it should just work. Have you tried to set a breakpoint in the emulator?

What you may experience is that EmailFuncs.SendEmailToUs requires information from the /web.config application and this information is not available. You need to know that your WebRole class is running in a different process (and not in a web application), which means that it is not using your web.config. If you want WebRole.cs to read information from the configuration file, you need to add these parameters to WaIISHost.exe.config