This tutorial covers observability of your Quarkus application by providing metrics, traces and logs using Open Telemetry.

Prerequisites

• Quarkus CLI (optional)
• Quarkus application
  • Micrometer Open Telemetry
  • Grafana LGTM Stack
• Java / Kotlin
• Gradle

Creating a new Quarkus project

The easiest way to create a Quarkus project locally is using the Quarkus CLI, which I'd usually install using SDKMan!.

quarkus create app dev.simonscholz:quarkus-otel --gradle-kotlin-dsl --kotlin --extensions=quarkus-config-yaml,quarkus-micrometer-opentelemetry,quarkus-smallrye-openapi,quarkus-rest-jackson,quarkus-observability-devservices

Alternatively you also can go to https://code.quarkus.io/ to create a new Quarkus project.

Feel free to add any extension you'd like.

Start the application

./gradlew qDev

Sources

• https://quarkus.io/guides/observability-devservices-lgtm
• https://docs.quarkiverse.io/quarkus-langchain4j/dev/observability.html