Create common application builder

API/Program.cs

@@ -19,9 +19,7 @@
 using Scalar.AspNetCore;
 using Serilog;
 
-var builder = WebApplication.CreateBuilder(args);
-
-builder.ApplyBaseConfiguration(options =>
+var builder = OpenShockApplication.CreateDefaultBuilder<Program>(args, options =>
 {
     options.ListenAnyIP(80);
 #if DEBUG

Common/OpenShockApplication.cs

@@ -0,0 +1,42 @@
+using System.Reflection;
+using Microsoft.AspNetCore.Server.Kestrel.Core;
+using Serilog;
+
+namespace OpenShock.Common;
+
+public static class OpenShockApplication
+{
+    public static WebApplicationBuilder CreateDefaultBuilder<TProgram>(string[] args, Action<KestrelServerOptions> configurePorts) where TProgram : class
+    {
+        var builder = WebApplication.CreateSlimBuilder(args);
+
+        builder.Configuration.Sources.Clear();
+        builder.Configuration
+            .AddJsonFile("appsettings.json", optional: true, reloadOnChange: false)
+            .AddJsonFile($"appsettings.{builder.Environment.EnvironmentName}.json", optional: true, reloadOnChange: false)
+            .AddJsonFile("appsettings.Custom.json", optional: true, reloadOnChange: false)
+            .AddEnvironmentVariables()
+            .AddUserSecrets<TProgram>(true)
+            .AddCommandLine(args);
+
+        var isDevelopment = builder.Environment.IsDevelopment();
+        builder.Host.UseDefaultServiceProvider((_, options) =>
+        {
+            options.ValidateScopes = isDevelopment;
+            options.ValidateOnBuild = isDevelopment;
+        });
+
+        // Since we use slim builders, this allows for HTTPS during local development
+        if (isDevelopment) builder.WebHost.UseKestrel();
+
+        builder.WebHost.ConfigureKestrel(serverOptions =>
+        {
+            configurePorts(serverOptions);
+            serverOptions.Limits.RequestHeadersTimeout = TimeSpan.FromMilliseconds(3000);
+        });
+
+        builder.Host.UseSerilog((context, _, config) => config.ReadFrom.Configuration(context.Configuration));
+
+        return builder;
+    }
+}

Cron/Program.cs

@@ -5,9 +5,7 @@
 using OpenShock.Cron;
 using OpenShock.Cron.Utils;
 
-var builder = WebApplication.CreateBuilder(args);
-
-builder.ApplyBaseConfiguration(options =>
+var builder = OpenShockApplication.CreateDefaultBuilder<Program>(args, options =>
 {
     options.ListenAnyIP(780);
 #if DEBUG

LiveControlGateway/Program.cs

@@ -8,9 +8,7 @@
 using OpenShock.LiveControlGateway.LifetimeManager;
 using OpenShock.LiveControlGateway.PubSub;
 
-var builder = WebApplication.CreateBuilder(args);
-
-builder.ApplyBaseConfiguration(options =>
+var builder = OpenShockApplication.CreateDefaultBuilder<Program>(args, options =>
 {
 #if DEBUG
     options.ListenAnyIP(580);