0001-log.patch

 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Logging;
+using PostSharp.Patterns.Diagnostics;
+using PostSharp.Patterns.Diagnostics.Backends.Console;
 
 namespace _1_sample_web
 {
+    [Log(AttributeExclude = true)]
     public class Program
     {
         public static void Main(string[] args)
         {
+            LoggingServices.DefaultBackend = new ConsoleLoggingBackend();
             CreateWebHostBuilder(args).Build().Run();
         }