observability-edot-dotnet-migrate

EDOT .NET Migration Read the migration guide before making changes: Migration guide EDOT .NET setup EDOT .NET configuration Guidelines Remove ALL classic APM references: Elastic.Apm. NuGet packages (including Elastic.Apm.NetCoreAll ), UseAllElasticApm() / AddAllElasticApm() calls, the ElasticApm section from appsettings.json , and all ELASTIC_APM_ env vars Add NuGet packages: Elastic.OpenTelemetry and OpenTelemetry.Instrumentation.AspNetCore (for ASP.NET Core apps) Register EDOT in startup: call builder.AddElasticOpenTelemetry() on the IHostApplicationBuilder (in Program.cs or equivalent). Without this, no telemetry is collected Set exactly three required environment variables: OTEL_SERVICE_NAME (replaces ELASTIC_APM_SERVICE_NAME / ElasticApm:ServiceName ) OTEL_EXPORTER_OTLP_ENDPOINT — must be the managed OTLP endpoint or EDOT Collector URL. Do NOT reuse the old ELASTIC_APM_SERVER_URLS value. Never use an APM Server URL (no apm-server , no :8200 , no /intake/v2/events ) OTEL_EXPORTER_OTLP_HEADERS — "Authorization=ApiKey " or "Authorization=Bearer " (replaces ELASTIC_APM_SECRET_TOKEN ) Do NOT set OTEL_TRACES_EXPORTER , OTEL_METRICS_EXPORTER , or OTEL_LOGS_EXPORTER — the defaults are already correct Never run both classic Elastic APM agent ( Elastic.Apm.* ) and EDOT on the same application Examples See the EDOT .NET migration guide for complete examples.