Asp .NET Core 3.1 - deploying to IIS

Question

I recently wrote my first ASP .NET Core (3.1) Web App,

Now I'm looking to deploy it to IIS.

Two guides on deploying that I've read mention adding the following code block:

var host = new WebHostBuilder()
  .UseKestrel()
  .UseContentRoot(Directory.GetCurrentDirectory())
  .UseIISIntegration()
  .UseStartup<Startup>()
  .Build();

However, the Program.cs in My App (as generated by MSVS) simply has:

Host.CreateDefaultBuilder(args)
    .ConfigureWebHostDefaults(webBuilder =>
    {
        webBuilder.UseStartup<Startup>();
    });

The Startup.cs file has a

public void Configure(...)

method, but this doesn't contain either .UseKestrel() OR .UseIISIntegration()

I've deployed my App to IIS Server (by creating an Application Pool). I get no response at http://localhost/MyApp

I looked at the Windows Application Log, and the logs in C:\inetpub\logs\LogFiles\W3SVC1, but I'm not seeing anything obvious

Any advice on how to diagnose this is appreciated

Please look at the official documentation on hosting ASP.NET Core in IIS. — poke
– poke, Commented Feb 8, 2020 at 13:54
@poke I have read that documentation, but it doesn't refer to the .UseIISIntegration() I see in other installation guides, i.e. stackify.com/how-to-deploy-asp-net-core-to-iis — Black
– Black, Commented Feb 9, 2020 at 6:07
does WebHost.CreateDefaultBuilder(args) call UseIISIntegration in the background? — Black
– Black, Commented Feb 9, 2020 at 6:10
Yes, the default builder takes care of IIS integration for you. — poke
– poke, Commented Feb 9, 2020 at 15:50
You will need to set the app pool to no managed code as well. — Netferret
– Netferret, Commented Feb 10, 2020 at 11:46

Boken · Accepted Answer · 2020-07-15 14:09:14Z

1

I know that time has passed but still.

public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseStartup<Startup>()
                .UseIISIntegration()
                .UseKestrel();
            });

Do not add: .Build();

edited Jul 15, 2020 at 14:09

Boken

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answered Jul 15, 2020 at 13:35

Alex Voronin

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