Transform first 3 files from WebHostBuilder to HostBuilder pattern

Co-authored-by: BrennanConroy <[email protected]>

Author: Copilot

src/Mvc/perf/benchmarkapps/BasicApi/Startup.cs

@@ -11,6 +11,7 @@
 using Microsoft.AspNetCore.Authentication.JwtBearer;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.EntityFrameworkCore.Migrations;
@@ -229,25 +230,29 @@ private void DropDatabaseTables(IServiceProvider services)
 
         public static void Main(string[] args)
         {
-            var host = CreateWebHostBuilder(args)
+            using var host = CreateHost(args)
                 .Build();
 
             host.Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args)
+        public static IHostBuilder CreateHost(string[] args)
         {
             var configuration = new ConfigurationBuilder()
                 .AddEnvironmentVariables()
                 .AddCommandLine(args)
                 .Build();
 
-            return new WebHostBuilder()
-                .UseKestrel()
-                .UseUrls("http://+:5000")
-                .UseConfiguration(configuration)
-                .UseContentRoot(Directory.GetCurrentDirectory())
-                .UseStartup<Startup>();
+            return new HostBuilder()
+                .ConfigureWebHost(webHostBuilder =>
+                {
+                    webHostBuilder
+                        .UseKestrel()
+                        .UseUrls("http://+:5000")
+                        .UseConfiguration(configuration)
+                        .UseContentRoot(Directory.GetCurrentDirectory())
+                        .UseStartup<Startup>();
+                });
         }
     }
 }

src/Mvc/samples/MvcSandbox/Startup.cs

@@ -1,6 +1,8 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using Microsoft.Extensions.Hosting;
+
 namespace MvcSandbox;
 
 public class Startup
@@ -42,22 +44,26 @@ static void ConfigureEndpoints(IEndpointRouteBuilder endpoints)
 
     public static void Main(string[] args)
     {
-        var host = CreateWebHostBuilder(args)
+        using var host = CreateHost(args)
             .Build();
 
         host.Run();
     }
 
-    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-        new WebHostBuilder()
-            .UseContentRoot(Directory.GetCurrentDirectory())
-            .ConfigureLogging(factory =>
+    public static IHostBuilder CreateHost(string[] args) =>
+        new HostBuilder()
+            .ConfigureWebHost(webHostBuilder =>
             {
-                factory
-                    .AddConsole()
-                    .AddDebug();
-            })
-            .UseKestrel()
-            .UseStartup<Startup>();
+                webHostBuilder
+                    .UseContentRoot(Directory.GetCurrentDirectory())
+                    .ConfigureLogging(factory =>
+                    {
+                        factory
+                            .AddConsole()
+                            .AddDebug();
+                    })
+                    .UseKestrel()
+                    .UseStartup<Startup>();
+            });
 }
 

src/Mvc/test/WebSites/BasicWebSite/Program.cs

@@ -1,20 +1,29 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using Microsoft.Extensions.Hosting;
+
 namespace BasicWebSite;
 
 public class Program
 {
-    public static void Main(string[] args) => CreateWebHostBuilder(args).Build().Run();
+    public static void Main(string[] args)
+    {
+        using var host = CreateHost(args).Build();
+        host.Run();
+    }
 
-    // Do not change. This is the pattern our test infrastructure uses to initialize a IWebHostBuilder from
-    // a users app.
-    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-        new WebHostBuilder()
-            .UseContentRoot(Directory.GetCurrentDirectory())
-            .UseStartup<StartupWithoutEndpointRouting>()
-            .UseKestrel()
-            .UseIISIntegration();
+    // This method now returns IHostBuilder and uses the new pattern with HostBuilder and ConfigureWebHost
+    public static IHostBuilder CreateHost(string[] args) =>
+        new HostBuilder()
+            .ConfigureWebHost(webHostBuilder =>
+            {
+                webHostBuilder
+                    .UseContentRoot(Directory.GetCurrentDirectory())
+                    .UseStartup<StartupWithoutEndpointRouting>()
+                    .UseKestrel()
+                    .UseIISIntegration();
+            });
 }
 
 public class TestService

src/Mvc/test/WebSites/SimpleWebSite/Startup.cs

@@ -1,6 +1,7 @@
 // Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
+using Microsoft.Extensions.Hosting;
 using Microsoft.Net.Http.Headers;
 using Newtonsoft.Json;
 
@@ -29,17 +30,21 @@ public void Configure(IApplicationBuilder app)
 
     public static void Main(string[] args)
     {
-        var host = CreateWebHostBuilder(args)
+        using var host = CreateHost(args)
             .Build();
 
         host.Run();
     }
 
-    public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-        new WebHostBuilder()
-            .UseContentRoot(Directory.GetCurrentDirectory())
-            .UseStartup<Startup>()
-            .UseKestrel()
-            .UseIISIntegration();
+    public static IHostBuilder CreateHost(string[] args) =>
+        new HostBuilder()
+            .ConfigureWebHost(webHostBuilder =>
+            {
+                webHostBuilder
+                    .UseContentRoot(Directory.GetCurrentDirectory())
+                    .UseStartup<Startup>()
+                    .UseKestrel()
+                    .UseIISIntegration();
+            });
 }