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Add OTEL tracing support for Wiremock + automatic OTEL for Aspire integration (#1418)

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* Update aspire to 13.1 (examples + code)

Allows usage of aspire CLI which is very useful for dev in codespaces (for my next PR).

* Add OTEL support

* Initial PR feedback

* PR feedback

* PR feedback

* PR feedback

* Cleanup.

* Cleanup

* Fix

* Fix

* Rename stuff around to be more accurate

* PR feedback

* Update WireMock.Net.OpenTelemetry.csproj

Update <Authors>

* PR feedback parser

* PR feedback package versions

* Status code feedback.

* Update preprocessor directives to to Activity Tracing instead of OpenTelemetry. Is more descriptive.

* Add tests

* Improve tests

---------

Co-authored-by: Stef Heyenrath <Stef.Heyenrath@gmail.com>
This commit is contained in:
Petr Houška
2026-01-18 17:22:36 +01:00
committed by GitHub
parent abe996671e
commit 4525c61847
38 changed files with 2057 additions and 9 deletions
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34
src/WireMock.Net.Aspire/WireMockServerBuilderExtensions.cs
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@@ -287,6 +287,40 @@ public static class WireMockServerBuilderExtensions
return wiremock;
}
/// <summary>
/// Configures OpenTelemetry distributed tracing for the WireMock.Net server.
/// This enables automatic trace export to the Aspire dashboard.
/// </summary>
/// <param name="wiremock">The <see cref="IResourceBuilder{WireMockServerResource}"/>.</param>
/// <returns>A reference to the <see cref="IResourceBuilder{WireMockServerResource}"/>.</returns>
/// <remarks>
/// When enabled, WireMock.Net will emit distributed traces for each request processed,
/// including information about:
/// <list type="bullet">
/// <item>HTTP method, URL, and status code</item>
/// <item>Mapping match results and scores</item>
/// <item>Request processing duration</item>
/// </list>
/// The traces will automatically appear in the Aspire dashboard.
/// </remarks>
public static IResourceBuilder<WireMockServerResource> WithOpenTelemetry(this IResourceBuilder<WireMockServerResource> wiremock)
{
Guard.NotNull(wiremock);
// Enable OpenTelemetry in WireMock server arguments
wiremock.Resource.Arguments.OpenTelemetryEnabled = true;
// Use Aspire's standard WithOtlpExporter to configure OTEL environment variables for the container
// This sets OTEL_EXPORTER_OTLP_ENDPOINT which the OTLP exporter reads automatically
var containerBuilder = wiremock as IResourceBuilder<ContainerResource>;
if (containerBuilder != null)
{
containerBuilder.WithOtlpExporter();
}
return wiremock;
}
private static Task<ExecuteCommandResult> OnRunOpenInspectorCommandAsync(IResourceBuilder<WireMockServerResource> builder)
{
WireMockInspector.Inspect(builder.Resource.GetEndpoint().Url);