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Merge pull request #1528 from stebet/otel-integration-package
Adding proper OpenTelemetry integration via. registration helpers and better context propagation
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| # RabbitMQ .NET Client - OpenTelemetry Instrumentation | ||
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| ## Introduction | ||
| This library makes it easy to instrument your RabbitMQ .NET Client applications with OpenTelemetry. | ||
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| ## Examples | ||
| The following examples demonstrate how to use the RabbitMQ .NET Client OpenTelemetry Instrumentation. | ||
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| ### Basic Usage | ||
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| #### ASP.NET Core Configuration Example | ||
| ```csharp | ||
| using OpenTelemetry.Trace; | ||
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| // Configure the OpenTelemetry SDK to trace ASP.NET Core, the RabbitMQ .NET Client and export the traces to the console. | ||
| // Also configures context propagation to propagate the TraceContext and Baggage using the W3C specification. | ||
| var compositeTextMapPropagator = new CompositeTextMapPropagator(new TextMapPropagator[] | ||
| { | ||
| new TraceContextPropagator(), | ||
| new BaggagePropagator() | ||
| }); | ||
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| Sdk.SetDefaultTextMapPropagator(compositeTextMapPropagator); | ||
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| builder.Services.AddOpenTelemetry() | ||
| .ConfigureResource(resource => resource | ||
| .AddService(serviceName: builder.Environment.ApplicationName)) | ||
| .WithTracing(tracing => tracing | ||
| .AddAspNetCoreInstrumentation() | ||
| .AddRabbitMQInstrumentation() | ||
| .AddConsoleExporter()); | ||
| ``` | ||
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| #### Console Application Configuration Example | ||
| ```csharp | ||
| using OpenTelemetry.Trace; | ||
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| // Configure the OpenTelemetry SDK to trace ASP.NET Core, the RabbitMQ .NET Client and export the traces to the console. | ||
| // Also configures context propagation to propagate the TraceContext and Baggage using the W3C specification. | ||
| var compositeTextMapPropagator = new CompositeTextMapPropagator(new TextMapPropagator[] | ||
| { | ||
| new TraceContextPropagator(), | ||
| new BaggagePropagator() | ||
| }); | ||
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| Sdk.SetDefaultTextMapPropagator(compositeTextMapPropagator); | ||
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| var tracerProvider = Sdk.CreateTracerProviderBuilder() | ||
| .AddRabbitMQInstrumentation() | ||
| .AddConsoleExporter() | ||
| .Build(); | ||
| ``` |
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64
projects/RabbitMQ.Client.OpenTelemetry/RabbitMQ.Client.OpenTelemetry.csproj
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFrameworks>net6.0;netstandard2.0</TargetFrameworks> | ||
| <NoWarn>$(NoWarn);CS1591</NoWarn> | ||
| <TreatWarningsAsErrors>true</TreatWarningsAsErrors> | ||
| <AssemblyTitle>RabbitMQ OpenTelemetry Integration Package for .NET</AssemblyTitle> | ||
| <Authors>VMware</Authors> | ||
| <Company>VMware, Inc. or its affiliates.</Company> | ||
| <Copyright>Copyright © 2007-2023 VMware, Inc. or its affiliates.</Copyright> | ||
| <Description>The RabbitMQ OpenTelemetry Library for .NET adds convenience extension methods for RabbitMQ/OpenTelemetry</Description> | ||
| <GenerateDocumentationFile>true</GenerateDocumentationFile> | ||
| <PackageIcon>icon.png</PackageIcon> | ||
| <PackageLicenseExpression>Apache-2.0 OR MPL-2.0</PackageLicenseExpression> | ||
| <PackageProjectUrl>https://www.rabbitmq.com/dotnet.html</PackageProjectUrl> | ||
| <PackageTags>rabbitmq, amqp, oauth2</PackageTags> | ||
| <Product>RabbitMQ</Product> | ||
| <PublishRepositoryUrl>true</PublishRepositoryUrl> | ||
| <RepositoryUrl>https://github.com/rabbitmq/rabbitmq-dotnet-client.git</RepositoryUrl> | ||
| <IncludeSymbols>true</IncludeSymbols> | ||
| <SymbolPackageFormat>snupkg</SymbolPackageFormat> | ||
| <AssemblyOriginatorKeyFile>../rabbit.snk</AssemblyOriginatorKeyFile> | ||
| <SignAssembly>true</SignAssembly> | ||
| <MinVerTagPrefix>otel-</MinVerTagPrefix> | ||
| <MinVerVerbosity>minimal</MinVerVerbosity> | ||
| <GeneratePackageOnBuild>true</GeneratePackageOnBuild> | ||
| <PackageOutputPath>../../packages</PackageOutputPath> | ||
| <PackageReadmeFile>README.md</PackageReadmeFile> | ||
| <LangVersion>7.3</LangVersion> | ||
| </PropertyGroup> | ||
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| <PropertyGroup Condition="'$(Configuration)' == 'Release' And '$(CI)' == 'true'"> | ||
| <ContinuousIntegrationBuild>true</ContinuousIntegrationBuild> | ||
| <Deterministic>true</Deterministic> | ||
| <EmbedUntrackedSources>true</EmbedUntrackedSources> | ||
| </PropertyGroup> | ||
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| <ItemGroup Condition="'$(Configuration)' == 'Release' and '$(SourceRoot)' == ''"> | ||
| <SourceRoot Include="$(MSBuildThisFileDirectory)/" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <None Remove="icon.png" /> | ||
| <Content Include="icon.png" PackagePath="" /> | ||
| <None Include="README.md" Pack="true" PackagePath="/" /> | ||
| <InternalsVisibleTo Include="Unit" /> | ||
| <InternalsVisibleTo Include="Benchmarks" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="3.3.4" PrivateAssets="all" /> | ||
| <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0" PrivateAssets="all" /> | ||
| <PackageReference Include="MinVer" Version="5.0.0" PrivateAssets="all" /> | ||
| <PackageReference Include="OpenTelemetry.Api" Version="1.7.0" /> | ||
| </ItemGroup> | ||
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| <ItemGroup Condition="$(TargetFramework) == 'netstandard2.0'"> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="../RabbitMQ.Client/RabbitMQ.Client.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
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projects/RabbitMQ.Client.OpenTelemetry/TraceProviderBuilderExtensions.cs
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| Original file line number | Diff line number | Diff line change |
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Diagnostics; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using OpenTelemetry.Context.Propagation; | ||
| using RabbitMQ.Client; | ||
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| namespace OpenTelemetry.Trace | ||
| { | ||
| public static class OpenTelemetryExtensions | ||
| { | ||
| public static TracerProviderBuilder AddRabbitMQInstrumentation(this TracerProviderBuilder builder) | ||
| { | ||
| RabbitMQActivitySource.UseRoutingKeyAsOperationName = true; | ||
| RabbitMQActivitySource.ContextExtractor = OpenTelemetryContextExtractor; | ||
| RabbitMQActivitySource.ContextInjector = OpenTelemetryContextInjector; | ||
| builder.AddSource("RabbitMQ.Client.*"); | ||
| return builder; | ||
| } | ||
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| private static ActivityContext OpenTelemetryContextExtractor(IReadOnlyBasicProperties props) | ||
| { | ||
| // Extract the PropagationContext of the upstream parent from the message headers. | ||
| var parentContext = Propagators.DefaultTextMapPropagator.Extract(default, props.Headers, OpenTelemetryContextGetter); | ||
| Baggage.Current = parentContext.Baggage; | ||
| return parentContext.ActivityContext; | ||
| } | ||
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| private static IEnumerable<string> OpenTelemetryContextGetter(IDictionary<string, object> carrier, string key) | ||
| { | ||
| try | ||
| { | ||
| if (carrier.TryGetValue(key, out object value) && value is byte[] bytes) | ||
| { | ||
| return new[] { Encoding.UTF8.GetString(bytes) }; | ||
| } | ||
| } | ||
| catch (Exception) | ||
| { | ||
| //this.logger.LogError(ex, "Failed to extract trace context."); | ||
| } | ||
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| return Enumerable.Empty<string>(); | ||
| } | ||
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| private static void OpenTelemetryContextInjector(Activity activity, IDictionary<string, object> props) | ||
| { | ||
| // Inject the current Activity's context into the message headers. | ||
| Propagators.DefaultTextMapPropagator.Inject(new PropagationContext(activity.Context, Baggage.Current), props, OpenTelemetryContextSetter); | ||
| } | ||
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| private static void OpenTelemetryContextSetter(IDictionary<string, object> carrier, string key, string value) | ||
| { | ||
| carrier[key] = Encoding.UTF8.GetBytes(value); | ||
| } | ||
| } | ||
| } |
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