AL0076 - Missing OpenTelemetry configuration

Ensure AddOpenTelemetry() is called in service configuration

Source: Al0076MissingOTelConfigurationAnalyzer.cs

Description

Projects that use ActivitySource or Meter should call AddOpenTelemetry() in their service configuration to ensure telemetry is exported.

Bad Code

var builder = WebApplication.CreateBuilder(args);
// Uses ActivitySource but never configures OpenTelemetry
var app = builder.Build();

Good Code

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddOpenTelemetry()
    .WithTracing(t => t.AddSource("MyService"))
    .WithMetrics(m => m.AddMeter("MyService"));
var app = builder.Build();

Properties

• Category: OpenTelemetry
• Severity: Warning
• Enabled by default: True
• Code fix available: False

Configuration

dotnet_diagnostic.AL0076.severity = warning