Hosting ServiceStack using Windows Azure worker role

Question

I am new to Windows Azure Cloud Services. I want to host a service, built using ServiceStack, on a worker role. I have tried a few ways including the following one but no success.

Code I have tried:

public class WorkerRole : RoleEntryPoint
{
    public class AppHost : AppHostHttpListenerBase
    {
        public AppHost()
            : base("HttpListener Self-Host", typeof(HelloService).Assembly) { }

        public override void Configure(Funq.Container container)
        {
            Routes
            .Add<Hello>("/hello")
            .Add<Hello>("/hello/{Name}");
        }
    }

    public override void Run()
    {
        while (true)
        {
            Thread.Sleep(10000);
            Trace.TraceInformation("Working", "Information");
        }
    }

    public override bool OnStart()
    {
        // Set the maximum number of concurrent connections 
        ServicePointManager.DefaultConnectionLimit = 12;

        // For information on handling configuration changes
        // see the MSDN topic at http://go.microsoft.com/fwlink/?LinkId=166357.       

        try
        {
            var endpoint = RoleEnvironment.CurrentRoleInstance.InstanceEndpoints["Endpoint1"];
            string baseUri = string.Format("{0}://{1}/", endpoint.Protocol, endpoint.IPEndpoint);

            var appHost = new AppHost();
            appHost.Init();
            appHost.Start(baseUri);
        }
        catch (Exception e)
        {
            Trace.TraceError("Could not start service host. {0}", e.Message);
        }

        return base.OnStart();
    }
}

Service is deployed successfully but I am unable to access the service.

You might want to watch this video. While it's not ServiceStack the principals are the same. Ensure that you have configured your endpoint access correctly. — Scott
Actually the app host is being started and no exception is being thrown while starting app host. I printed out the IP Endpoint of worker role in trace and used that to send request browser cant find that. Although if i run this project on local machine it works fine. I followed following links for ServiceStack self-hosting and deploying API on worker role: github.com/ServiceStack/ServiceStack/wiki/Self-hosting asp.net/web-api/overview/hosting-aspnet-web-api/… — Haider
Haider - did you ever get this working? I'm looking at doing something similar. — Erick T

LuukWeltevreden LuukWeltevreden · Accepted Answer · 2014-01-20T18:44:49

Are you running it with elevated priviledges? In order to open an HTTP port you need to run as an administrator. You can do this by adding <Runtime executionContext="elevated" /> to your worker role in the service definition.

Alternatively you could make a startup script (which of course has to run in elevated mode) to run a netsh command allowing you to open the ports without elevated priviledges.

Hosting ServiceStack using Windows Azure worker role

1 Answers