[Traces] Support named options in AspNetCore instrumentation (#3661)

* Support named options in aspnetcore instrumentation.

* CHANGELOG update.

src/OpenTelemetry.Instrumentation.AspNetCore/.publicApi/net6.0/PublicAPI.Unshipped.txt

@@ -11,4 +11,6 @@ OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions.Record
 OpenTelemetry.Metrics.MeterProviderBuilderExtensions
 OpenTelemetry.Trace.TracerProviderBuilderExtensions
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Metrics.MeterProviderBuilder builder) -> OpenTelemetry.Metrics.MeterProviderBuilder
-static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions = null) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, string name, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions) -> OpenTelemetry.Trace.TracerProviderBuilder

src/OpenTelemetry.Instrumentation.AspNetCore/.publicApi/net7.0/PublicAPI.Unshipped.txt

@@ -11,4 +11,6 @@ OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions.Record
 OpenTelemetry.Metrics.MeterProviderBuilderExtensions
 OpenTelemetry.Trace.TracerProviderBuilderExtensions
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Metrics.MeterProviderBuilder builder) -> OpenTelemetry.Metrics.MeterProviderBuilder
-static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions = null) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, string name, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.TracerProviderBuilderExtensions.AddAspNetCoreInstrumentation(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Instrumentation.AspNetCore.AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions) -> OpenTelemetry.Trace.TracerProviderBuilder

src/OpenTelemetry.Instrumentation.AspNetCore/CHANGELOG.md

@@ -6,6 +6,11 @@
   wouldn't be collected.
   ([#3475](https://github.com/open-telemetry/opentelemetry-dotnet/pull/3475))
 
+* Added overloads which accept a name to the `TracerProviderBuilder`
+  `AddAspNetCoreInstrumentation` extension to allow for more fine-grained
+  options management
+  ([#3661](https://github.com/open-telemetry/opentelemetry-dotnet/pull/3661))
+
 ## 1.0.0-rc9.6
 
 Released 2022-Aug-18

src/OpenTelemetry.Instrumentation.AspNetCore/TracerProviderBuilderExtensions.cs

@@ -35,22 +35,45 @@ public static class TracerProviderBuilderExtensions
         /// Enables the incoming requests automatic data collection for ASP.NET Core.
         /// </summary>
         /// <param name="builder"><see cref="TracerProviderBuilder"/> being configured.</param>
-        /// <param name="configureAspNetCoreInstrumentationOptions">ASP.NET Core Request configuration options.</param>
+        /// <returns>The instance of <see cref="TracerProviderBuilder"/> to chain the calls.</returns>
+        public static TracerProviderBuilder AddAspNetCoreInstrumentation(this TracerProviderBuilder builder)
+            => AddAspNetCoreInstrumentation(builder, name: null, configureAspNetCoreInstrumentationOptions: null);
+
+        /// <summary>
+        /// Enables the incoming requests automatic data collection for ASP.NET Core.
+        /// </summary>
+        /// <param name="builder"><see cref="TracerProviderBuilder"/> being configured.</param>
+        /// <param name="configureAspNetCoreInstrumentationOptions">Callback action for configuring <see cref="AspNetCoreInstrumentationOptions"/>.</param>
         /// <returns>The instance of <see cref="TracerProviderBuilder"/> to chain the calls.</returns>
         public static TracerProviderBuilder AddAspNetCoreInstrumentation(
             this TracerProviderBuilder builder,
-            Action<AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions = null)
+            Action<AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions)
+            => AddAspNetCoreInstrumentation(builder, name: null, configureAspNetCoreInstrumentationOptions);
+
+        /// <summary>
+        /// Enables the incoming requests automatic data collection for ASP.NET Core.
+        /// </summary>
+        /// <param name="builder"><see cref="TracerProviderBuilder"/> being configured.</param>
+        /// <param name="name">Name which is used when retrieving options.</param>
+        /// <param name="configureAspNetCoreInstrumentationOptions">Callback action for configuring <see cref="AspNetCoreInstrumentationOptions"/>.</param>
+        /// <returns>The instance of <see cref="TracerProviderBuilder"/> to chain the calls.</returns>
+        public static TracerProviderBuilder AddAspNetCoreInstrumentation(
+            this TracerProviderBuilder builder,
+            string name,
+            Action<AspNetCoreInstrumentationOptions> configureAspNetCoreInstrumentationOptions)
         {
             Guard.ThrowIfNull(builder);
 
+            name ??= Options.DefaultName;
+
             if (configureAspNetCoreInstrumentationOptions != null)
             {
-                builder.ConfigureServices(services => services.Configure(configureAspNetCoreInstrumentationOptions));
+                builder.ConfigureServices(services => services.Configure(name, configureAspNetCoreInstrumentationOptions));
             }
 
             return builder.ConfigureBuilder((sp, builder) =>
             {
-                var options = sp.GetRequiredService<IOptions<AspNetCoreInstrumentationOptions>>().Value;
+                var options = sp.GetRequiredService<IOptionsMonitor<AspNetCoreInstrumentationOptions>>().Get(name);
 
                 AddAspNetCoreInstrumentation(builder, new AspNetCoreInstrumentation(new HttpInListener(options)), sp);
             });

test/OpenTelemetry.Instrumentation.AspNetCore.Tests/DependencyInjectionConfigTests.cs

@@ -17,6 +17,7 @@
 using Microsoft.AspNetCore.Mvc.Testing;
 using Microsoft.AspNetCore.TestHost;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
 using OpenTelemetry.Trace;
 using Xunit;
 
@@ -32,19 +33,20 @@ public DependencyInjectionConfigTests(WebApplicationFactory<Program> factory)
             this.factory = factory;
         }
 
-        [Fact]
-        public void TestDIConfig()
+        [Theory]
+        [InlineData(null)]
+        [InlineData("CustomName")]
+        public void TestDIConfig(string name)
         {
+            name ??= Options.DefaultName;
+
             bool optionsPickedFromDI = false;
             void ConfigureTestServices(IServiceCollection services)
             {
                 services.AddOpenTelemetryTracing(
-                    builder =>
-                     {
-                         builder.AddAspNetCoreInstrumentation();
-                     });
+                    builder => builder.AddAspNetCoreInstrumentation(name, configureAspNetCoreInstrumentationOptions: null));
 
-                services.Configure<AspNetCoreInstrumentationOptions>(options =>
+                services.Configure<AspNetCoreInstrumentationOptions>(name, options =>
                 {
                     optionsPickedFromDI = true;
                 });