// If you want use multiple trace service, Do not use AddOpenTelemetryTracing, but use multiple Sdk.CreateTracerProviderBuilder() instead.
// ref: https://github.com/open-telemetry/opentelemetry-dotnet/issues/2040
public static void AddAdditionalTracer(this IServiceCollection services, IConfiguration configuration)
{
var exporter = configuration.GetValue <string>("UseExporter").ToLowerInvariant();
foreach (var service in BackendActivitySources.ExtraActivitySourceNames)
{
switch (exporter)
{
case "jaeger":
var jo = new OpenTelemetry.Exporter.JaegerExporterOptions();
configuration.GetSection("Jaeger").Bind(jo);
Sdk.CreateTracerProviderBuilder()
.AddSource(service)
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService(service))
.AddJaegerExporter(o =>
{
o.AgentHost = jo.AgentHost;
o.AgentPort = jo.AgentPort;
})
.Build();
break;
case "zipkin":
var zo = new OpenTelemetry.Exporter.ZipkinExporterOptions();
configuration.GetSection("Zipkin").Bind(zo);
Sdk.CreateTracerProviderBuilder()
.AddSource(service)
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService(service))
.AddZipkinExporter(o => o.Endpoint = zo.Endpoint)
.Build();
break;
default:
// ConsoleExporter will show current tracer activity
Sdk.CreateTracerProviderBuilder()
.AddSource(service)
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService(service))
.AddConsoleExporter()
.Build();
break;
}
}
}
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
// OpenTelemetry Require set of Listener + Instrumentation.
// - Listener will add via services.AddMagicOnion().UseOpenTelemetry()
// - Instrumentation will add via TraceProviderBuilder.AddMagicOnionInstrumentation()
services.AddGrpc(); // MagicOnion depends on ASP.NET Core gRPC service.
services.AddMagicOnion(options =>
{
options.GlobalFilters.Add(new MagicOnionOpenTelemetryTracerFilterFactoryAttribute());
options.GlobalStreamingHubFilters.Add(new MagicOnionOpenTelemetryStreamingTracerFilterFactoryAttribute());
// Exception Filter enable Telemetry to know which gRPC Error happen.
options.GlobalFilters.Add(new ExceptionFilterFactoryAttribute());
})
.AddOpenTelemetry(); // Listen OpenTelemetry Activity
// Configure OpenTelemetry as usual.
services.AddOpenTelemetryTracing(configure =>
{
var exporter = this.Configuration.GetValue <string>("UseExporter").ToLowerInvariant();
switch (exporter)
{
// Switch between Jaeger/Zipkin by setting UseExporter in appsettings.json.
case "jaeger":
var jo = new OpenTelemetry.Exporter.JaegerExporterOptions();
Configuration.GetSection("Jaeger").Bind(jo);
configure
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService("ChatApp.Server"))
.AddAspNetCoreInstrumentation()
.AddMagicOnionInstrumentation() // enable MagicOnion instrumentation
.AddJaegerExporter();
services.Configure <OpenTelemetry.Exporter.JaegerExporterOptions>(Configuration.GetSection("Jaeger"));
break;
case "zipkin":
var zo = new OpenTelemetry.Exporter.ZipkinExporterOptions();
Configuration.GetSection("Zipkin").Bind(zo);
configure
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService("ChatApp.Server"))
.AddAspNetCoreInstrumentation()
.AddMagicOnionInstrumentation() // enable MagicOnion instrumentation
.AddZipkinExporter();
services.Configure <OpenTelemetry.Exporter.ZipkinExporterOptions>(this.Configuration.GetSection("Zipkin"));
break;
default:
// ConsoleExporter will show current tracer activity
configure
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService("ChatApp.Server"))
.AddAspNetCoreInstrumentation()
.AddMagicOnionInstrumentation() // enable MagicOnion instrumentation
.AddConsoleExporter();
services.Configure <OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions>(this.Configuration.GetSection("AspNetCoreInstrumentation"));
services.Configure <OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions>(options =>
{
options.Filter = (req) => req.Request?.Host != null;
});
break;
}
});
// additional Tracer for user's own service.
// This means we cannot use AddOpenTelemetryTracing(), but require Sdk.CreateTracerProviderBuilder() instead.
services.AddAdditionalTracer(Configuration);
}
