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Feat/opentracing (#1243)

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This commit is contained in:
Tom Pallister
2020-05-25 18:42:48 +01:00
committed by GitHub
parent 3439be8927
commit 865520f2d7
13 changed files with 929 additions and 76 deletions
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150
test/Ocelot.AcceptanceTests/Ocelot.AcceptanceTests.csproj
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@ -1,75 +1,77 @@
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<GenerateRuntimeConfigurationFiles>true</GenerateRuntimeConfigurationFiles>
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<GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
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516
test/Ocelot.AcceptanceTests/OpenTracingTests.cs Normal file
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@ -0,0 +1,516 @@
namespace Ocelot.AcceptanceTests
{
using Butterfly.Client.AspNetCore;
using Ocelot.Configuration.File;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using OpenTracing;
using OpenTracing.Propagation;
using OpenTracing.Tag;
using Rafty.Infrastructure;
using Shouldly;
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using TestStack.BDDfy;
using Xunit;
using Xunit.Abstractions;
public class OpenTracingTests : IDisposable
{
private IWebHost _serviceOneBuilder;
private IWebHost _serviceTwoBuilder;
private IWebHost _fakeOpenTracing;
private readonly Steps _steps;
private string _downstreamPathOne;
private string _downstreamPathTwo;
private readonly ITestOutputHelper _output;
public OpenTracingTests(ITestOutputHelper output)
{
_output = output;
_steps = new Steps();
}
[Fact]
public void should_forward_tracing_information_from_ocelot_and_downstream_services()
{
int port1 = RandomPortFinder.GetRandomPort();
int port2 = RandomPortFinder.GetRandomPort();
var configuration = new FileConfiguration()
{
Routes = new List<FileRoute>()
{
new FileRoute()
{
DownstreamPathTemplate = "/api/values",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = port1,
}
},
UpstreamPathTemplate = "/api001/values",
UpstreamHttpMethod = new List<string> { "Get" },
HttpHandlerOptions = new FileHttpHandlerOptions
{
UseTracing = true
}
},
new FileRoute()
{
DownstreamPathTemplate = "/api/values",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort()
{
Host = "localhost",
Port = port2,
}
},
UpstreamPathTemplate = "/api002/values",
UpstreamHttpMethod = new List<string> { "Get" },
HttpHandlerOptions = new FileHttpHandlerOptions
{
UseTracing = true
}
}
}
};
var tracingPort = RandomPortFinder.GetRandomPort();
var tracingUrl = $"http://localhost:{tracingPort}";
var fakeTracer = new FakeTracer();
this.Given(_ => GivenFakeOpenTracing(tracingUrl))
.And(_ => GivenServiceOneIsRunning($"http://localhost:{port1}", "/api/values", 200, "Hello from Laura", tracingUrl))
.And(_ => GivenServiceTwoIsRunning($"http://localhost:{port2}", "/api/values", 200, "Hello from Tom", tracingUrl))
.And(_ => _steps.GivenThereIsAConfiguration(configuration))
.And(_ => _steps.GivenOcelotIsRunningUsingOpenTracing(fakeTracer))
.When(_ => _steps.WhenIGetUrlOnTheApiGateway("/api001/values"))
.Then(_ => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(_ => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.When(_ => _steps.WhenIGetUrlOnTheApiGateway("/api002/values"))
.Then(_ => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(_ => _steps.ThenTheResponseBodyShouldBe("Hello from Tom"))
.And(_ => ThenTheTracerIsCalled(fakeTracer))
.BDDfy();
}
[Fact]
public void should_return_tracing_header()
{
int port = RandomPortFinder.GetRandomPort();
var configuration = new FileConfiguration
{
Routes = new List<FileRoute>
{
new FileRoute
{
DownstreamPathTemplate = "/api/values",
DownstreamScheme = "http",
DownstreamHostAndPorts = new List<FileHostAndPort>
{
new FileHostAndPort
{
Host = "localhost",
Port = port,
}
},
UpstreamPathTemplate = "/api001/values",
UpstreamHttpMethod = new List<string> { "Get" },
HttpHandlerOptions = new FileHttpHandlerOptions
{
UseTracing = true
},
DownstreamHeaderTransform = new Dictionary<string, string>()
{
{"Trace-Id", "{TraceId}"},
{"Tom", "Laura"}
}
}
}
};
var butterflyPort = RandomPortFinder.GetRandomPort();
var butterflyUrl = $"http://localhost:{butterflyPort}";
var fakeTracer = new FakeTracer();
this.Given(x => GivenFakeOpenTracing(butterflyUrl))
.And(x => GivenServiceOneIsRunning($"http://localhost:{port}", "/api/values", 200, "Hello from Laura", butterflyUrl))
.And(x => _steps.GivenThereIsAConfiguration(configuration))
.And(x => _steps.GivenOcelotIsRunningUsingOpenTracing(fakeTracer))
.When(x => _steps.WhenIGetUrlOnTheApiGateway("/api001/values"))
.Then(x => _steps.ThenTheStatusCodeShouldBe(HttpStatusCode.OK))
.And(x => _steps.ThenTheResponseBodyShouldBe("Hello from Laura"))
.And(x => _steps.ThenTheTraceHeaderIsSet("Trace-Id"))
.And(x => _steps.ThenTheResponseHeaderIs("Tom", "Laura"))
.BDDfy();
}
private void ThenTheTracerIsCalled(FakeTracer fakeTracer)
{
var commandOnAllStateMachines = Wait.WaitFor(10000).Until(() => fakeTracer.BuildSpanCalled >= 2);
_output.WriteLine($"fakeTracer.BuildSpanCalled is {fakeTracer.BuildSpanCalled}");
commandOnAllStateMachines.ShouldBeTrue();
}
private void GivenServiceOneIsRunning(string baseUrl, string basePath, int statusCode, string responseBody, string butterflyUrl)
{
_serviceOneBuilder = new WebHostBuilder()
.UseUrls(baseUrl)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.ConfigureServices(services =>
{
services.AddButterfly(option =>
{
option.CollectorUrl = butterflyUrl;
option.Service = "Service One";
option.IgnoredRoutesRegexPatterns = new string[0];
});
})
.Configure(app =>
{
app.UsePathBase(basePath);
app.Run(async context =>
{
_downstreamPathOne = !string.IsNullOrEmpty(context.Request.PathBase.Value) ? context.Request.PathBase.Value : context.Request.Path.Value;
if (_downstreamPathOne != basePath)
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync("downstream path didnt match base path");
}
else
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
}
});
})
.Build();
_serviceOneBuilder.Start();
}
private void GivenFakeOpenTracing(string baseUrl)
{
_fakeOpenTracing = new WebHostBuilder()
.UseUrls(baseUrl)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.Configure(app =>
{
app.Run(async context =>
{
await context.Response.WriteAsync("OK...");
});
})
.Build();
_fakeOpenTracing.Start();
}
private void GivenServiceTwoIsRunning(string baseUrl, string basePath, int statusCode, string responseBody, string butterflyUrl)
{
_serviceTwoBuilder = new WebHostBuilder()
.UseUrls(baseUrl)
.UseKestrel()
.UseContentRoot(Directory.GetCurrentDirectory())
.UseIISIntegration()
.ConfigureServices(services =>
{
services.AddButterfly(option =>
{
option.CollectorUrl = butterflyUrl;
option.Service = "Service Two";
option.IgnoredRoutesRegexPatterns = new string[0];
});
})
.Configure(app =>
{
app.UsePathBase(basePath);
app.Run(async context =>
{
_downstreamPathTwo = !string.IsNullOrEmpty(context.Request.PathBase.Value) ? context.Request.PathBase.Value : context.Request.Path.Value;
if (_downstreamPathTwo != basePath)
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync("downstream path didnt match base path");
}
else
{
context.Response.StatusCode = statusCode;
await context.Response.WriteAsync(responseBody);
}
});
})
.Build();
_serviceTwoBuilder.Start();
}
public void Dispose()
{
_serviceOneBuilder?.Dispose();
_serviceTwoBuilder?.Dispose();
_fakeOpenTracing?.Dispose();
_steps.Dispose();
}
}
internal class FakeTracer : ITracer
{
public IScopeManager ScopeManager => throw new NotImplementedException();
public ISpan ActiveSpan => throw new NotImplementedException();
public ISpanBuilder BuildSpan(string operationName)
{
this.BuildSpanCalled++;
return new FakeSpanBuilder();
}
public int BuildSpanCalled { get; set; }
public ISpanContext Extract<TCarrier>(IFormat<TCarrier> format, TCarrier carrier)
{
this.ExtractCalled++;
return null;
}
public int ExtractCalled { get; set; }
public void Inject<TCarrier>(ISpanContext spanContext, IFormat<TCarrier> format, TCarrier carrier)
{
this.InjectCalled++;
}
public int InjectCalled { get; set; }
}
internal class FakeSpanBuilder : ISpanBuilder
{
public ISpanBuilder AddReference(string referenceType, ISpanContext referencedContext)
{
throw new NotImplementedException();
}
public ISpanBuilder AsChildOf(ISpanContext parent)
{
throw new NotImplementedException();
}
public ISpanBuilder AsChildOf(ISpan parent)
{
throw new NotImplementedException();
}
public ISpanBuilder IgnoreActiveSpan()
{
throw new NotImplementedException();
}
public ISpan Start()
{
throw new NotImplementedException();
}
public IScope StartActive()
{
throw new NotImplementedException();
}
public IScope StartActive(bool finishSpanOnDispose)
{
return new FakeScope(finishSpanOnDispose);
}
public ISpanBuilder WithStartTimestamp(DateTimeOffset timestamp)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(string key, string value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(string key, bool value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(string key, int value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(string key, double value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(BooleanTag tag, bool value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(IntOrStringTag tag, string value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(IntTag tag, int value)
{
throw new NotImplementedException();
}
public ISpanBuilder WithTag(StringTag tag, string value)
{
throw new NotImplementedException();
}
}
internal class FakeScope : IScope
{
private readonly bool finishSpanOnDispose;
public FakeScope(bool finishSpanOnDispose)
{
this.finishSpanOnDispose = finishSpanOnDispose;
}
public ISpan Span { get; } = new FakeSpan();
public void Dispose()
{
if (this.finishSpanOnDispose)
{
this.Span.Finish();
}
}
}
internal class FakeSpan : ISpan
{
public ISpanContext Context => new FakeSpanContext();
public void Finish()
{
}
public void Finish(DateTimeOffset finishTimestamp)
{
throw new NotImplementedException();
}
public string GetBaggageItem(string key)
{
throw new NotImplementedException();
}
public ISpan Log(IEnumerable<KeyValuePair<string, object>> fields)
{
return this;
}
public ISpan Log(DateTimeOffset timestamp, IEnumerable<KeyValuePair<string, object>> fields)
{
throw new NotImplementedException();
}
public ISpan Log(string @event)
{
throw new NotImplementedException();
}
public ISpan Log(DateTimeOffset timestamp, string @event)
{
throw new NotImplementedException();
}
public ISpan SetBaggageItem(string key, string value)
{
throw new NotImplementedException();
}
public ISpan SetOperationName(string operationName)
{
throw new NotImplementedException();
}
public ISpan SetTag(string key, string value)
{
return this;
}
public ISpan SetTag(string key, bool value)
{
return this;
}
public ISpan SetTag(string key, int value)
{
return this;
}
public ISpan SetTag(string key, double value)
{
return this;
}
public ISpan SetTag(BooleanTag tag, bool value)
{
return this;
}
public ISpan SetTag(IntOrStringTag tag, string value)
{
return this;
}
public ISpan SetTag(IntTag tag, int value)
{
return this;
}
public ISpan SetTag(StringTag tag, string value)
{
return this;
}
}
internal class FakeSpanContext : ISpanContext
{
public static string FakeTraceId = "FakeTraceId";
public static string FakeSpanId = "FakeSpanId";
public string TraceId => FakeTraceId;
public string SpanId => FakeSpanId;
public IEnumerable<KeyValuePair<string, string>> GetBaggageItems()
{
throw new NotImplementedException();
}
}
}

36
test/Ocelot.AcceptanceTests/Steps.cs
View File

@ -46,6 +46,7 @@ namespace Ocelot.AcceptanceTests
using ConfigurationBuilder = Microsoft.Extensions.Configuration.ConfigurationBuilder;
using CookieHeaderValue = Microsoft.Net.Http.Headers.CookieHeaderValue;
using MediaTypeHeaderValue = System.Net.Http.Headers.MediaTypeHeaderValue;
using Ocelot.Tracing.OpenTracing;
public class Steps : IDisposable
{
@ -1214,6 +1215,41 @@ namespace Ocelot.AcceptanceTests
_ocelotClient = _ocelotServer.CreateClient();
}
internal void GivenOcelotIsRunningUsingOpenTracing(OpenTracing.ITracer fakeTracer)
{
_webHostBuilder = new WebHostBuilder();
_webHostBuilder
.ConfigureAppConfiguration((hostingContext, config) =>
{
config.SetBasePath(hostingContext.HostingEnvironment.ContentRootPath);
var env = hostingContext.HostingEnvironment;
config.AddJsonFile("appsettings.json", optional: true, reloadOnChange: false)
.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true, reloadOnChange: false);
config.AddJsonFile("ocelot.json", optional: true, reloadOnChange: false);
config.AddEnvironmentVariables();
})
.ConfigureServices(s =>
{
s.AddOcelot()
.AddOpenTracing();
s.AddSingleton<OpenTracing.ITracer>(fakeTracer);
})
.Configure(app =>
{
app.Use(async (_, next) =>
{
await next.Invoke();
});
app.UseOcelot().Wait();
});
_ocelotServer = new TestServer(_webHostBuilder);
_ocelotClient = _ocelotServer.CreateClient();
}
public void ThenWarningShouldBeLogged()
{
MockLoggerFactory loggerFactory = (MockLoggerFactory)_ocelotServer.Host.Services.GetService<IOcelotLoggerFactory>();