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OpenTelemetry BEAM Example

The purpose of this repo is to demonstrate how to integrate OpenTelemetry into BEAM applications and collect telemetry from a variety of popular libraries. It also gives us a way to validate that data is getting sent successfully to supported vendor collector back-ends.

Getting Started with This Example Repo

To get you started quickly if you want to try running the examples in this repo, we've arranged the example projects using docker-compose. We run all of the following in a self-contained environment, so all you need to have installed is Docker and Docker Compose.

  • A Cowboy- and Plug-based API gateway service (just to show distributed tracing)
  • A Phoenix-based database-backed application (to show Phoenix and Ecto integration)
  • A Postgres database
  • A Datadog agent to collect traces and forward them to Datadog APM

First, you'll need to set your API key:

cp datadog.env.example datadog.env

# Modify datadog.env to specify your API key

Then, run all the things:

docker-compose build
docker-compose up -d

You'll be able to hit the gateway service from your development machine at http://localhost:4000 and the backend service at http://localhost:4001.