Introduce a setting to control the primary instance shutdown timeout

Author: mauroservienti

src/ServiceControl/HostApplicationBuilderExtensions.cs

@@ -51,7 +51,7 @@ public static void AddServiceControl(this IHostApplicationBuilder hostBuilder, S
             var transportCustomization = TransportFactory.Create(transportSettings);
             transportCustomization.AddTransportForPrimary(services, transportSettings);
 
-            services.Configure<HostOptions>(options => options.ShutdownTimeout = TimeSpan.FromSeconds(30));
+            services.Configure<HostOptions>(options => options.ShutdownTimeout = settings.ShutdownTimeout);
             services.AddSingleton<IDomainEvents, DomainEvents>();
 
             services.AddSingleton<MessageStreamerHub>();

src/ServiceControl/Infrastructure/Settings/Settings.cs

@@ -65,6 +65,7 @@ public Settings(
             TimeToRestartErrorIngestionAfterFailure = GetTimeToRestartErrorIngestionAfterFailure();
             DisableExternalIntegrationsPublishing = SettingsReader.Read(SettingsRootNamespace, "DisableExternalIntegrationsPublishing", false);
             TrackInstancesInitialValue = SettingsReader.Read(SettingsRootNamespace, "TrackInstancesInitialValue", true);
+            ShutdownTimeout = SettingsReader.Read(SettingsRootNamespace, "ShutdownTimeout", ShutdownTimeout);
             AssemblyLoadContextResolver = static assemblyPath => new PluginAssemblyLoadContext(assemblyPath);
         }
 
@@ -180,6 +181,11 @@ public TimeSpan HeartbeatGracePeriod
 
         public bool DisableHealthChecks { get; set; }
 
+        // Windows services allow a maximum of 125 seconds when stopping a service.
+        // When shutting down or restarting the OS we have no control over the
+        // shutdown timeout
+        public TimeSpan ShutdownTimeout { get; set; } = TimeSpan.FromMinutes(2);
+
         public string GetConnectionString()
         {
             var settingsValue = SettingsReader.Read<string>(SettingsRootNamespace, "ConnectionString");