Problem with reading appsettings file using Host.CreateDefaultBuilder

[valeriob]

Creating a default host builder via this api
var builder = Microsoft.Extensions.Hosting.Host.CreateDefaultBuilder(args)
it does not load appsettings.json settings.

This is due to CreateDefaultBuilder setting the content root to
builder.UseContentRoot(Directory.GetCurrentDirectory());
https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/generic-host?view=aspnetcore-3.0
and at that time GetCurrentDirectory is c:\windows\system32

[stevenvolckaert]

@valeriob According to Host ASP.NET Core in a Windows Service on Microsoft Docs, GetCurrentDirectory() always returns C:\Windows\system32 for Windows Services.

It does state, however, that loading the app's default settings files - appsettings.json and appsettings.{Environment}.json - are loaded from the app's content root by calling Host.CreateDefaultBuilder(args).

Does it make any difference if you call RunAsTopshelfService after CreateDefaultBuilder?

Alternatively, you might workaround this issue by calling:

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .RunAsTopshelfService()
            .ConfigureAppConfiguration((hostingContext, config) =>
            {
                config.AddJsonFile("appsettings.json");
            })
            .ConfigureServices((hostContext, services) =>
            {
                services.AddHostedService<Worker>();
            });

[vunb]

Hi, you can replace Directory.GetCurrentDirectory() by using the path of the proccess:

CreateHostBuilder(args)
  // set base path for application
  .UseContentRoot(Path.GetDirectoryName(Process
    .GetCurrentProcess()
    .MainModule.FileName))
  .RunAsTopshelfService();

[lekrus]

The only solution worked is the same as used in UseWindowsService() extension:

var rc = CreateHostBuilder(args)
  .UseContentRoot(AppContext.BaseDirectory)
  .RunAsTopshelfService();

[EsmailOuadghiri]

The only solution worked is the same as used in UseWindowsService() extension:

var rc = CreateHostBuilder(args)
  .UseContentRoot(AppContext.BaseDirectory)
  .RunAsTopshelfService();

Thank you soooooooooo much