How do I stop the self-service Kestrel app?
I have canonical code for self-hosting an asp.net MVP application, inside a task:
Task hostingtask = Task.Factory.StartNew(() =>
{
Console.WriteLine("hosting ffoqsi");
IWebHost host = new WebHostBuilder()
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.UseStartup<Startup>()
.UseApplicationInsights()
.Build();
host.Run();
}, canceltoken);
When I cancel this task, an ObjectDisposedException is thrown. How can I gracefully close the host?
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2 answers
Found the most obvious way to undo Kestrel. Run has an overload that accepts a cancellation token.
public static class WebHostExtensions
{
/// <summary>
/// Runs a web application and block the calling thread until host shutdown.
/// </summary>
/// <param name="host">The <see cref="T:Microsoft.AspNetCore.Hosting.IWebHost" /> to run.</param>
public static void Run(this IWebHost host);
/// <summary>
/// Runs a web application and block the calling thread until token is triggered or shutdown is triggered.
/// </summary>
/// <param name="host">The <see cref="T:Microsoft.AspNetCore.Hosting.IWebHost" /> to run.</param>
/// <param name="token">The token to trigger shutdown.</param>
public static void RunAsync(this IWebHost host, CancellationToken token);
}
So by passing the cancellation token
host.Run(ct);
solves it.
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You could send a request to your web server, which would cause the controller action that entered through IApplicationLifetime
would StopApplication()
. Will this work for you?
https://docs.microsoft.com/en-us/aspnet/core/api/microsoft.aspnetcore.hosting.iapplicationlifetime
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