Run Azure WebJob on premises server

Question

The application I'm working on has to be deployable on Azure and on a Windows Server.

I'm using a Continuous Azure WebJob, that has some methods with a [TimerTrigger] attribute, that work fine on Azure. But I would like them to trigger also when deployed on premises.

Is this something supported? What would be a recommended way to have the exe with the Azure WebJob SDK running on a Windows Server continuously from a DevOps perspective?

I'm using .NET Core 3 and the Microsoft.Azure.Webjobs 3.0 SDK.

Answer 1

You can consider the web job project as a console project, and just click the your_webjob.exe to run it continuously(by specifying TimerTrigger). And you can follow this article to create a .NET core webjob.

Here is an example:

1.Create a .NET core 3.0 console project, and install the following nuget packages:

Microsoft.Azure.WebJobs.Extensions, version 3.0.0

Microsoft.Azure.WebJobs.Extensions.Storage, version 3.0.10

Microsoft.Extensions.Logging.Console, version 3.0.0

2.Here is the code in program.cs:

using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            var builder = new HostBuilder();
            builder.ConfigureWebJobs(b =>
            {

                b.AddTimers();
                b.AddAzureStorageCoreServices();
                b.AddAzureStorage();
            });
            builder.ConfigureLogging((context, b) =>
            {
                b.AddConsole();
            });

            var host = builder.Build();
            using (host)
            {
                host.Run();
            }
        }
    }
}

3.Add appsettings.json file to the project, and then right click the appsettings.json file -> select properties -> set the "Copy to Output Directory" to "Copy if newer". Here is the appsettings.json:

{
  "ConnectionStrings": {
    "AzureWebJobsStorage": "DefaultEndpointsProtocol=https;AccountName=xx;AccountKey=xxx;EndpointSuffix=core.windows.net"
  }
}

4. Add a Functions.cs to the project. And here is the code in Functions.cs:

   using Microsoft.Azure.WebJobs;
   using Microsoft.Extensions.Logging;
   
   namespace ConsoleApp2
   {
       public class Functions
       {
           public static void CronJob([TimerTrigger("0 */1 * * * *")] TimerInfo timer, ILogger logger)
           {
               logger.LogInformation("this is a test message!");
           }
       }
   }
   

5.Build the project, then go to the folder where your_webjob.exe is located, just double click the .exe file, it can run continuously on local: