appinsights-instrumentation

Install the Azure.Monitor.OpenTelemetry.AspNetCore package, then add builder.Services.AddOpenTelemetry().UseAzureMonitor() in Program.cs before builder.Build(). Set the APPLICATIONINSIGHTS_CONNECTION_STRING environment variable on the running app to complete configuration.

Install @azure/monitor-opentelemetry via npm, then call useAzureMonitor() in your app's entry file as early as possible, after environment variables are loaded. The connection string is read from the APPLICATIONINSIGHTS_CONNECTION_STRING environment variable.

Yes, auto-instrumentation is available for ASP.NET Core and Node.js apps hosted in Azure App Service through the Azure Portal's Application Insights blade. This requires no code changes, but other hosting models like Container Apps require manual SDK setup.

No, configuring via appsettings.json is deprecated. The recommended approach is setting the APPLICATIONINSIGHTS_CONNECTION_STRING environment variable, either through your IaC template (Bicep/Terraform) or Azure CLI commands.

Container Apps provide built-in metrics and Log Analytics integration for console and system logs. For request-level tracing and dependency tracking, add the Application Insights SDK for your language and set the connection string as a container app secret.

Use azure-prepare when you want to actually add App Insights to your project and modify code. This Skill provides reference material and guidance for understanding instrumentation patterns, while azure-prepare orchestrates the actual changes.