mirror of
https://github.com/nsnail/Ocelot.git
synced 2025-06-19 14:48:14 +08:00
Make Ocelot work with service fabric DNS and naming service for guest exe and stateless (#242)
* test for issue * added service fabric sample * working!! * changed sample naming to Ocelot * removed files we dont need * removed files we dont need * updated sample gitignore * updated sample gitignore * getting ocelot to work with service fabric using the reverse proxy * #238 - added support for service fabric discovery provider, proxies requests through naming service, wont work on partioned service fabric services yet * #238 - Manually tested service fabric using sample..all seems OK. Made some changes after testing, added docs * #238 - added docs for servic fabric
This commit is contained in:
Tom Pallister
@ -0,0 +1,59 @@
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using System;
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using System.Collections.Generic;
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using System.Fabric;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.ServiceFabric.Services.Communication.AspNetCore;
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using Microsoft.ServiceFabric.Services.Communication.Runtime;
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using Microsoft.ServiceFabric.Services.Runtime;
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using Microsoft.Extensions.Logging;
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namespace OcelotApplicationService
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{
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/// <summary>
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/// The FabricRuntime creates an instance of this class for each service type instance.
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/// </summary>
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internal sealed class ApiGateway : StatelessService
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{
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public ApiGateway(StatelessServiceContext context)
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: base(context)
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{ }
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/// <summary>
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/// Optional override to create listeners (like tcp, http) for this service instance.
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/// </summary>
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/// <returns>The collection of listeners.</returns>
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protected override IEnumerable<ServiceInstanceListener> CreateServiceInstanceListeners()
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{
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return new ServiceInstanceListener[]
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{
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new ServiceInstanceListener(serviceContext =>
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new KestrelCommunicationListener(serviceContext, "ServiceEndpoint", (url, listener) =>
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{
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Console.WriteLine($"Starting Kestrel on {url}");
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ServiceEventSource.Current.ServiceMessage(serviceContext, $"Starting Kestrel on {url}");
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return new WebHostBuilder()
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.UseKestrel()
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.ConfigureServices(
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services => services
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.AddSingleton<StatelessServiceContext>(serviceContext))
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.UseContentRoot(Directory.GetCurrentDirectory())
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.UseServiceFabricIntegration(listener, ServiceFabricIntegrationOptions.UseUniqueServiceUrl)
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.UseStartup<Startup>()
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.UseUrls(url)
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.ConfigureLogging((hostingContext, logging) =>
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{
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logging.AddConfiguration(hostingContext.Configuration.GetSection("Logging"));
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logging.AddConsole();
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})
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.Build();
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}))
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};
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}
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}
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}
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@ -0,0 +1,44 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Mvc;
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namespace OcelotApplicationService.Controllers
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{
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[Route("api/[controller]")]
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public class ValuesController : Controller
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{
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// GET api/values
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[HttpGet]
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public IEnumerable<string> Get()
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{
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return new string[] { "value1", "value2" };
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}
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// GET api/values/5
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[HttpGet("{id}")]
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public string Get(int id)
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{
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return "value";
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}
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// POST api/values
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[HttpPost]
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public void Post([FromBody]string value)
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{
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}
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// PUT api/values/5
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[HttpPut("{id}")]
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public void Put(int id, [FromBody]string value)
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{
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}
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// DELETE api/values/5
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[HttpDelete("{id}")]
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public void Delete(int id)
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{
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}
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}
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}
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<Description>Stateless Service Application</Description>
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<Authors> </Authors>
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<OutputType>Exe</OutputType>
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<TargetFramework>netcoreapp2.0</TargetFramework>
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<AssemblyName>OcelotApplicationService</AssemblyName>
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<PackageId>OcelotApplicationService</PackageId>
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<PackageTargetFallback>$(PackageTargetFallback)</PackageTargetFallback>
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</PropertyGroup>
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<ItemGroup>
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.ServiceFabric" Version="6.1.456"/>
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<PackageReference Include="Microsoft.ServiceFabric.Services" Version="3.0.456"/>
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<PackageReference Include="Microsoft.AspNetCore" Version="2.0.1"/>
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<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.2"/>
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<PackageReference Include="Microsoft.ServiceFabric.AspNetCore.Kestrel" Version="3.0.456"/>
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</ItemGroup>
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</Project>
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using Microsoft.ServiceFabric.Services.Runtime;
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using System;
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using System.Diagnostics;
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using System.Threading;
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using System.Threading.Tasks;
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namespace OcelotApplicationService
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{
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internal static class Program
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{
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/// <summary>
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/// This is the entry point of the service host process.
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/// </summary>
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private static void Main()
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{
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try
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{
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// The ServiceManifest.XML file defines one or more service type names.
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// Registering a service maps a service type name to a .NET type.
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// When Service Fabric creates an instance of this service type,
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// an instance of the class is created in this host process.
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ServiceRuntime.RegisterServiceAsync("OcelotApplicationServiceType",
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context => new ApiGateway(context)).GetAwaiter().GetResult();
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ServiceEventSource.Current.ServiceTypeRegistered(Process.GetCurrentProcess().Id, typeof(ApiGateway).Name);
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// Prevents this host process from terminating so services keeps running.
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Thread.Sleep(Timeout.Infinite);
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}
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catch (Exception e)
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{
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ServiceEventSource.Current.ServiceHostInitializationFailed(e.ToString());
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throw;
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}
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}
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}
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}
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@ -0,0 +1,189 @@
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using System;
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using System.Collections.Generic;
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using System.Diagnostics.Tracing;
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using System.Fabric;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace OcelotApplicationService
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{
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[EventSource(Name = "MyCompany-ServiceOcelotApplication-OcelotService")]
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internal sealed class ServiceEventSource : EventSource
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{
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public static readonly ServiceEventSource Current = new ServiceEventSource();
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static ServiceEventSource()
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{
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// A workaround for the problem where ETW activities do not get tracked until Tasks infrastructure is initialized.
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// This problem will be fixed in .NET Framework 4.6.2.
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Task.Run(() => { });
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}
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// Instance constructor is private to enforce singleton semantics
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private ServiceEventSource() : base() { }
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#region Keywords
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// Event keywords can be used to categorize events.
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// Each keyword is a bit flag. A single event can be associated with multiple keywords (via EventAttribute.Keywords property).
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// Keywords must be defined as a public class named 'Keywords' inside EventSource that uses them.
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public static class Keywords
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{
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public const EventKeywords Requests = (EventKeywords)0x1L;
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public const EventKeywords ServiceInitialization = (EventKeywords)0x2L;
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}
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#endregion
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#region Events
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// Define an instance method for each event you want to record and apply an [Event] attribute to it.
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// The method name is the name of the event.
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// Pass any parameters you want to record with the event (only primitive integer types, DateTime, Guid & string are allowed).
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// Each event method implementation should check whether the event source is enabled, and if it is, call WriteEvent() method to raise the event.
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// The number and types of arguments passed to every event method must exactly match what is passed to WriteEvent().
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// Put [NonEvent] attribute on all methods that do not define an event.
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// For more information see https://msdn.microsoft.com/en-us/library/system.diagnostics.tracing.eventsource.aspx
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[NonEvent]
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public void Message(string message, params object[] args)
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{
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if (this.IsEnabled())
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{
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string finalMessage = string.Format(message, args);
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Message(finalMessage);
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}
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}
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private const int MessageEventId = 1;
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[Event(MessageEventId, Level = EventLevel.Informational, Message = "{0}")]
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public void Message(string message)
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{
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if (this.IsEnabled())
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{
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WriteEvent(MessageEventId, message);
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}
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}
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[NonEvent]
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public void ServiceMessage(ServiceContext serviceContext, string message, params object[] args)
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{
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if (this.IsEnabled())
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{
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string finalMessage = string.Format(message, args);
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ServiceMessage(
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serviceContext.ServiceName.ToString(),
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serviceContext.ServiceTypeName,
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GetReplicaOrInstanceId(serviceContext),
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serviceContext.PartitionId,
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serviceContext.CodePackageActivationContext.ApplicationName,
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serviceContext.CodePackageActivationContext.ApplicationTypeName,
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serviceContext.NodeContext.NodeName,
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finalMessage);
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}
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}
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// For very high-frequency events it might be advantageous to raise events using WriteEventCore API.
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// This results in more efficient parameter handling, but requires explicit allocation of EventData structure and unsafe code.
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// To enable this code path, define UNSAFE conditional compilation symbol and turn on unsafe code support in project properties.
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private const int ServiceMessageEventId = 2;
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[Event(ServiceMessageEventId, Level = EventLevel.Informational, Message = "{7}")]
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private
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#if UNSAFE
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unsafe
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#endif
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void ServiceMessage(
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string serviceName,
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string serviceTypeName,
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long replicaOrInstanceId,
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Guid partitionId,
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string applicationName,
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string applicationTypeName,
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string nodeName,
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string message)
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{
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#if !UNSAFE
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WriteEvent(ServiceMessageEventId, serviceName, serviceTypeName, replicaOrInstanceId, partitionId, applicationName, applicationTypeName, nodeName, message);
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#else
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const int numArgs = 8;
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fixed (char* pServiceName = serviceName, pServiceTypeName = serviceTypeName, pApplicationName = applicationName, pApplicationTypeName = applicationTypeName, pNodeName = nodeName, pMessage = message)
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{
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EventData* eventData = stackalloc EventData[numArgs];
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eventData[0] = new EventData { DataPointer = (IntPtr) pServiceName, Size = SizeInBytes(serviceName) };
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eventData[1] = new EventData { DataPointer = (IntPtr) pServiceTypeName, Size = SizeInBytes(serviceTypeName) };
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eventData[2] = new EventData { DataPointer = (IntPtr) (&replicaOrInstanceId), Size = sizeof(long) };
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eventData[3] = new EventData { DataPointer = (IntPtr) (&partitionId), Size = sizeof(Guid) };
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eventData[4] = new EventData { DataPointer = (IntPtr) pApplicationName, Size = SizeInBytes(applicationName) };
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eventData[5] = new EventData { DataPointer = (IntPtr) pApplicationTypeName, Size = SizeInBytes(applicationTypeName) };
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eventData[6] = new EventData { DataPointer = (IntPtr) pNodeName, Size = SizeInBytes(nodeName) };
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eventData[7] = new EventData { DataPointer = (IntPtr) pMessage, Size = SizeInBytes(message) };
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WriteEventCore(ServiceMessageEventId, numArgs, eventData);
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}
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#endif
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}
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private const int ServiceTypeRegisteredEventId = 3;
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[Event(ServiceTypeRegisteredEventId, Level = EventLevel.Informational, Message = "Service host process {0} registered service type {1}", Keywords = Keywords.ServiceInitialization)]
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public void ServiceTypeRegistered(int hostProcessId, string serviceType)
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{
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WriteEvent(ServiceTypeRegisteredEventId, hostProcessId, serviceType);
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}
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private const int ServiceHostInitializationFailedEventId = 4;
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[Event(ServiceHostInitializationFailedEventId, Level = EventLevel.Error, Message = "Service host initialization failed", Keywords = Keywords.ServiceInitialization)]
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public void ServiceHostInitializationFailed(string exception)
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{
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WriteEvent(ServiceHostInitializationFailedEventId, exception);
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}
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// A pair of events sharing the same name prefix with a "Start"/"Stop" suffix implicitly marks boundaries of an event tracing activity.
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// These activities can be automatically picked up by debugging and profiling tools, which can compute their execution time, child activities,
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// and other statistics.
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private const int ServiceRequestStartEventId = 5;
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[Event(ServiceRequestStartEventId, Level = EventLevel.Informational, Message = "Service request '{0}' started", Keywords = Keywords.Requests)]
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public void ServiceRequestStart(string requestTypeName)
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{
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WriteEvent(ServiceRequestStartEventId, requestTypeName);
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}
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private const int ServiceRequestStopEventId = 6;
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[Event(ServiceRequestStopEventId, Level = EventLevel.Informational, Message = "Service request '{0}' finished", Keywords = Keywords.Requests)]
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public void ServiceRequestStop(string requestTypeName, string exception = "")
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{
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WriteEvent(ServiceRequestStopEventId, requestTypeName, exception);
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}
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#endregion
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#region Private methods
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private static long GetReplicaOrInstanceId(ServiceContext context)
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{
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StatelessServiceContext stateless = context as StatelessServiceContext;
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if (stateless != null)
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{
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return stateless.InstanceId;
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}
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StatefulServiceContext stateful = context as StatefulServiceContext;
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if (stateful != null)
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{
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return stateful.ReplicaId;
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}
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throw new NotSupportedException("Context type not supported.");
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}
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#if UNSAFE
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private int SizeInBytes(string s)
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{
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if (s == null)
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{
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return 0;
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}
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else
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{
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return (s.Length + 1) * sizeof(char);
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}
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}
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#endif
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#endregion
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}
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}
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@ -0,0 +1,40 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace OcelotApplicationService
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{
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public class Startup
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{
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public Startup(IConfiguration configuration)
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{
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Configuration = configuration;
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}
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public IConfiguration Configuration { get; }
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// This method gets called by the runtime. Use this method to add services to the container.
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public void ConfigureServices(IServiceCollection services)
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{
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services.AddMvc();
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}
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// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
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public void Configure(IApplicationBuilder app, IHostingEnvironment env)
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{
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if (env.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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}
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app.UseMvc();
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}
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}
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}
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Reference in New Issue
Block a user