feat: add Aspire dashboard OTEL workflow

Add OTLP export wiring for the sidecar and dev scripts to launch the standalone Aspire Dashboard during development. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-08-06 19:58:43 +02:00 · 2026-04-16 10:39:36 +02:00
parent 418946b854
commit f7d376fc41
11 changed files with 586 additions and 3 deletions
@@ -0,0 +1,87 @@
+using Aryx.AgentHost.Services;
+using OpenTelemetry.Exporter;
+using OpenTelemetry.Trace;
+
+namespace Aryx.AgentHost.Tests;
+
+public sealed class OpenTelemetrySetupTests
+{
+    [Fact]
+    public void ResolveTracingConfiguration_ReturnsNullWhenEndpointMissing()
+    {
+        OpenTelemetryTracingConfiguration? configuration = OpenTelemetrySetup.ResolveTracingConfiguration([]);
+
+        Assert.Null(configuration);
+    }
+
+    [Fact]
+    public void ResolveTracingConfiguration_UsesGrpcByDefault()
+    {
+        OpenTelemetryTracingConfiguration? configuration = OpenTelemetrySetup.ResolveTracingConfiguration(
+        [
+            new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_ENDPOINT", "http://localhost:4317"),
+        ]);
+
+        Assert.NotNull(configuration);
+        Assert.Equal(new Uri("http://localhost:4317"), configuration.Endpoint);
+        Assert.Equal(OtlpExportProtocol.Grpc, configuration.Protocol);
+        Assert.Collection(
+            configuration.ActivitySourceNames,
+            source => Assert.Equal("Microsoft.Agents.AI", source),
+            source => Assert.Equal("Microsoft.Agents.AI.Workflows", source));
+    }
+
+    [Fact]
+    public void ResolveTracingConfiguration_UsesHttpProtobufWhenRequested()
+    {
+        OpenTelemetryTracingConfiguration? configuration = OpenTelemetrySetup.ResolveTracingConfiguration(
+        [
+            new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_ENDPOINT", "http://localhost:4318"),
+            new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_PROTOCOL", "http/protobuf"),
+        ]);
+
+        Assert.NotNull(configuration);
+        Assert.Equal(new Uri("http://localhost:4318"), configuration.Endpoint);
+        Assert.Equal(OtlpExportProtocol.HttpProtobuf, configuration.Protocol);
+    }
+
+    [Fact]
+    public void ResolveTracingConfiguration_ThrowsWhenEndpointInvalid()
+    {
+        InvalidOperationException error = Assert.Throws<InvalidOperationException>(() =>
+            OpenTelemetrySetup.ResolveTracingConfiguration(
+            [
+                new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_ENDPOINT", "localhost:4317"),
+            ]));
+
+        Assert.Contains("OTEL_EXPORTER_OTLP_ENDPOINT", error.Message, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public void ResolveTracingConfiguration_ThrowsWhenProtocolUnsupported()
+    {
+        InvalidOperationException error = Assert.Throws<InvalidOperationException>(() =>
+            OpenTelemetrySetup.ResolveTracingConfiguration(
+            [
+                new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_ENDPOINT", "http://localhost:4317"),
+                new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_PROTOCOL", "http/json"),
+            ]));
+
+        Assert.Contains("OTEL_EXPORTER_OTLP_PROTOCOL", error.Message, StringComparison.Ordinal);
+    }
+
+    [Fact]
+    public void CreateTracerProvider_CreatesProviderAndWritesDiagnosticsWhenConfigured()
+    {
+        StringWriter diagnosticsWriter = new();
+
+        using TracerProvider? tracerProvider = OpenTelemetrySetup.CreateTracerProvider(
+        [
+            new KeyValuePair<string, string?>("OTEL_EXPORTER_OTLP_ENDPOINT", "http://localhost:4317"),
+        ],
+        diagnosticsWriter);
+
+        Assert.NotNull(tracerProvider);
+        Assert.Contains("Aryx.AgentHost OpenTelemetry tracing enabled", diagnosticsWriter.ToString(), StringComparison.Ordinal);
+    }
+}