Given two services, I want to be able to link opentelemetry spans from the consumer to the producer. This example originally tried to use the opentelemetry-instrumentation-kafkajs package to instrument.
Due to what I can only assume is a massive skill issue I could not get it to work as expected. In the end I opted for manual instrumentation which is actually exceedingly easy and begs the question why auto-instrumentation even exists in the first place.
To run this example app
docker-compose build
docker compose upThis will boot up
- zookeeper
- kafka (single broker)
- producer app (producer/main.ts)
- consumer app (consumer/main.ts)
Send a message from the producer app and see the span attributes for that message in the consumer app link to the producer span.