Update Serilog to work properly with OTEL and structured logging

Author: ardalis

Directory.Packages.props

@@ -33,6 +33,7 @@
     <PackageVersion Include="ReportGenerator" Version="5.5.0" />
     <PackageVersion Include="Scalar.AspNetCore" Version="2.10.3" />
     <PackageVersion Include="Serilog.AspNetCore" Version="9.0.0" />
+    <PackageVersion Include="Serilog.Sinks.OpenTelemetry" Version="4.2.0" />
     <PackageVersion Include="Shouldly" Version="4.3.0" />
     <PackageVersion Include="SQLite" Version="3.13.0" />
     <PackageVersion Include="Swashbuckle.AspNetCore" Version="6.5.0" />

src/Clean.Architecture.Web/Configurations/LoggerConfigs.cs

@@ -6,8 +6,14 @@ public static class LoggerConfigs
 {
   public static WebApplicationBuilder AddLoggerConfigs(this WebApplicationBuilder builder)
   {
-
-    builder.Host.UseSerilog((_, config) => config.ReadFrom.Configuration(builder.Configuration));
+    // Add Serilog as an additional logging provider alongside OpenTelemetry
+    // This allows both Serilog (for console/file) and OpenTelemetry (for Aspire) to work together
+    builder.Logging.AddSerilog(new LoggerConfiguration()
+      .ReadFrom.Configuration(builder.Configuration)
+      .Enrich.FromLogContext()
+      .Enrich.WithProperty("Application", builder.Environment.ApplicationName)
+      .WriteTo.Console()
+      .CreateLogger());
 
     return builder;
   }

src/Clean.Architecture.Web/Program.cs

@@ -2,22 +2,16 @@
 
 var builder = WebApplication.CreateBuilder(args);
 
-builder.AddServiceDefaults();
+builder.AddServiceDefaults()    // This sets up OpenTelemetry logging
+       .AddLoggerConfigs();     // This adds Serilog for console formatting
 
-var logger = Log.Logger = new LoggerConfiguration()
-  .Enrich.FromLogContext()
-  .WriteTo.Console()
-  .CreateLogger();
+using var loggerFactory = LoggerFactory.Create(config => config.AddConsole());
+var startupLogger = loggerFactory.CreateLogger<Program>();
 
-logger.Information("Starting web host");
+startupLogger.LogInformation("Starting web host");
 
-builder.AddLoggerConfigs();
-
-var appLogger = new SerilogLoggerFactory(logger)
-    .CreateLogger<Program>();
-
-builder.Services.AddOptionConfigs(builder.Configuration, appLogger, builder);
-builder.Services.AddServiceConfigs(appLogger, builder);
+builder.Services.AddOptionConfigs(builder.Configuration, startupLogger, builder);
+builder.Services.AddServiceConfigs(startupLogger, builder);
 
 builder.Services.AddFastEndpoints()
                 .SwaggerDocument(o =>