This project provides an example of microservice written in Java that produces telemetry data for traces and metrics using OpenTelemetry. It also shows how to de-couple the application from the observability backend using the OpenTelemetry Collector and the OTLP protocol, so you can be easily switch the observability backend for another without code changes.
💡 If you want to learn how to build this code with a hands-on tutorial, you can watch the YouTube series below.
Alternatively, you can also read the blog post: https://www.buildon.aws/posts/instrumenting-java-apps-using-opentelemetry
You can have the microservice sending telemetry data to a local observability backend. Traces will be sent to Grafana Tempo and the metrics to Prometheus. Then you can use Grafana to visualize the the generated telemetry data.
- Start the containers using Docker Compose.
docker compose -f docker-compose.yaml up -d- Access the Grafana UI: http://localhost:3000
You can have the microservice sending telemetry data to AWS as observability backend. Traces will be sent to AWS X-Ray and the metrics to Amazon CloudWatch. This is possible thanks to the AWS Distro for OpenTelemetry that provides out-of-the-box integration with AWS services. Before running the code; make sure to configure your AWS credentials in your machine, as the code will use them to connect with the target services.
- Start the containers using Docker Compose.
docker compose -f docker-compose-aws.yaml up -d- Access the AWS Console: https://console.aws.amazon.com
The microservice expose an API over the port 8888 using HTTP.
- Invoke this API for testing purposes.
curl -X GET http://localhost:8888/helloSee CONTRIBUTING for more information.
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