Name		Name	Last commit message	Last commit date
parent directory ..
src/main/java/io/opentelemetry/example/javagent		src/main/java/io/opentelemetry/example/javagent
Dockerfile		Dockerfile
README.md		README.md
build.gradle.kts		build.gradle.kts
docker-compose.yml		docker-compose.yml
otel-config.yaml		otel-config.yaml

README.md

OpenTelemetry Java Agent Example

This example demonstrates simple usage of the OpenTelemetry Java Agent published by opentelemetry-java-instrumentation.

It consists of a spring boot application with:

A gradle task for downloading the OpenTelemetry Java Agent.
A simple web API available at GET http://localhost:8080/ping. When called, auto instrumentation from the OpenTelemetry Java Agent records spans and metrics. Additionally, there is manual trace and metric instrumentation, as well as application logging performed in the context of traces using the log4j API.
A docker compose setup configured to run the application and export to the collector via OTLP.
The collector is configured with the OTLP receiver and export it to standard out with the logging exporter

Build the application jar

../gradlew bootJar

Run the application and the collector with docker compose

docker-compose up --build

In a separate shell, exercise the application by calling its endpoint

curl http://localhost:8080/ping

Watch for spans, metrics, and logs in the collector log output