TaskHub.Shared

TaskHub.Observability.OpenTelemetry

Unified observability setup for Traces, Metrics, and Logs.

Contents

• Technical Manual (Deep Dive) - Exhaustive guide on OTEL pipeline, instrumentation, and exporters.
• Usage Guide - Manual tracing and OTLP configuration.

Summary

• Supports OTLP and Prometheus exporters.
• Automated instrumentation for HTTP, EF Core, SQL, and Command Bus.
• Consistent resource naming across the ecosystem.

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This module provides a “one-stop shop” for configuring OpenTelemetry in TaskHub services. It follows industry standards to ensure compatibility with modern observability stacks (Grafana, Tempo, Prometheus, Loki).

Exporters

• OTLP: Used for sending traces to Tempo and logs to Loki.
• Prometheus: Scrape endpoint for metrics.

Instrumentation

The following libraries are automatically instrumented when using AddAppOpenTelemetry:

• Microsoft.AspNetCore
• System.Net.Http
• EntityFrameworkCore
• StackExchange.Redis

Registration

builder.Services.AddAppOpenTelemetry(o => {
    o.ServiceName = "MyService";
    o.OtlpEndpoint = "http://otel-collector:4317";
});

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