Add a small amount of logging to ServerFactory

src/Tgstation.Server.Host/ServerFactory.cs

@@ -3,6 +3,7 @@ using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
 using System;
 using System.Threading;
 using System.Threading.Tasks;
@@ -51,16 +52,17 @@ namespace Tgstation.Server.Host
 			var setupWizardHostBuilder = CreateDefaultBuilder()
 				.UseSetupApplication();
 
-			IPostSetupServices postSetupServices;
+			IPostSetupServices<ServerFactory> postSetupServices;
 			using (var setupHost = setupWizardHostBuilder.Build())
 			{
-				postSetupServices = setupHost.Services.GetRequiredService<IPostSetupServices>();
+				postSetupServices = setupHost.Services.GetRequiredService<IPostSetupServices<ServerFactory>>();
 				await setupHost.RunAsync(cancellationToken).ConfigureAwait(false);
-			}
 
-			if (postSetupServices.GeneralConfiguration.SetupWizardMode == SetupWizardMode.Only)
-			{
-				return null;
+				if (postSetupServices.GeneralConfiguration.SetupWizardMode == SetupWizardMode.Only)
+				{
+					postSetupServices.Logger.LogInformation("Shutting down due to only running setup wizard.");
+					return null;
+				}
 			}
 
 			var hostBuilder = CreateDefaultBuilder()

src/Tgstation.Server.Host/Setup/IPostSetupServices{TLoggerType}.cs

@@ -0,0 +1,16 @@
+using Microsoft.Extensions.Logging;
+
+namespace Tgstation.Server.Host.Setup
+{
+	/// <summary>
+	/// <see cref="IPostSetupServices"/> with a <see cref="Logger"/>.
+	/// </summary>
+	/// <typeparam name="TLoggerType">The category <see cref="global::System.Type"/> for <see cref="Logger"/>.</typeparam>
+	interface IPostSetupServices<TLoggerType> : IPostSetupServices
+	{
+		/// <summary>
+		/// The <see cref="ILogger"/>.
+		/// </summary>
+		ILogger<TLoggerType> Logger { get; }
+	}
+}

src/Tgstation.Server.Host/Setup/PostSetupServices.cs

@@ -1,4 +1,5 @@
-using Microsoft.Extensions.Options;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
 using System;
 using Tgstation.Server.Host.Configuration;
 using Tgstation.Server.Host.System;
@@ -6,7 +7,7 @@ using Tgstation.Server.Host.System;
 namespace Tgstation.Server.Host.Setup
 {
 	/// <inheritdoc />
-	sealed class PostSetupServices : IPostSetupServices
+	sealed class PostSetupServices<TLoggerType> : IPostSetupServices<TLoggerType>
 	{
 		/// <inheritdoc />
 		public IPlatformIdentifier PlatformIdentifier { get; }
@@ -20,6 +21,9 @@ namespace Tgstation.Server.Host.Setup
 		/// <inheritdoc />
 		public FileLoggingConfiguration FileLoggingConfiguration => fileLoggingConfigurationOptions.Value;
 
+		/// <inheritdoc />
+		public ILogger<TLoggerType> Logger { get; }
+
 		/// <summary>
 		/// Backing <see cref="IOptions{TOptions}"/> for <see cref="GeneralConfiguration"/>.
 		/// </summary>
@@ -36,19 +40,25 @@ namespace Tgstation.Server.Host.Setup
 		readonly IOptions<FileLoggingConfiguration> fileLoggingConfigurationOptions;
 
 		/// <summary>
-		/// Initializes a new instance of the <see cref="PostSetupServices"/> <see langword="class"/>.
+		/// Initializes a new instance of the <see cref="PostSetupServices{TLoggerType}"/> <see langword="class"/>.
 		/// </summary>
 		/// <param name="platformIdentifier">The value of <see cref="PlatformIdentifier"/>.</param>
+		/// <param name="loggerFactory">The <see cref="ILoggerFactory"/> used to create <see cref="Logger"/>.</param>
 		/// <param name="generalConfigurationOptions">The <see cref="IOptions{TOptions}"/> containing the value of <see cref="GeneralConfiguration"/>.</param>
 		/// <param name="databaseConfigurationOptions">The <see cref="IOptions{TOptions}"/> containing the value of <see cref="DatabaseConfiguration"/>.</param>
 		/// <param name="fileLoggingConfigurationOptions">The <see cref="IOptions{TOptions}"/> containing the value of <see cref="FileLoggingConfiguration"/>.</param>
 		public PostSetupServices(
 			IPlatformIdentifier platformIdentifier,
+			ILoggerFactory loggerFactory,
 			IOptions<GeneralConfiguration> generalConfigurationOptions,
 			IOptions<DatabaseConfiguration> databaseConfigurationOptions,
 			IOptions<FileLoggingConfiguration> fileLoggingConfigurationOptions)
 		{
 			PlatformIdentifier = platformIdentifier ?? throw new ArgumentNullException(nameof(platformIdentifier));
+			if (loggerFactory == null)
+				throw new ArgumentNullException(nameof(loggerFactory));
+
+			Logger = loggerFactory.CreateLogger<TLoggerType>();
 			this.generalConfigurationOptions = generalConfigurationOptions ?? throw new ArgumentNullException(nameof(generalConfigurationOptions));
 			this.databaseConfigurationOptions = databaseConfigurationOptions ?? throw new ArgumentNullException(nameof(databaseConfigurationOptions));
 			this.fileLoggingConfigurationOptions = fileLoggingConfigurationOptions ?? throw new ArgumentNullException(nameof(fileLoggingConfigurationOptions));

src/Tgstation.Server.Host/Setup/SetupApplication.cs

@@ -1,4 +1,4 @@
-using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Serilog.Events;
@@ -73,7 +73,7 @@ namespace Tgstation.Server.Host.Setup
 		/// <param name="services">The <see cref="IServiceCollection"/> to configure.</param>
 		protected virtual void ConfigureHostedService(IServiceCollection services)
 		{
-			services.AddSingleton<IPostSetupServices, PostSetupServices>();
+			services.AddSingleton(typeof(IPostSetupServices<>), typeof(PostSetupServices<>));
 			services.AddSingleton<IHostedService, SetupWizard>();
 		}
 	}