Rails Observability Playbook

What?

A very simple example Rails app with Open Telemetry installed.

Accompanies my Rails Observability Playbook in Notion.

Running on Heroku and is set up to send data to Datadog, but the app is vendor agnostic.

Why?

Installing Otel in Rails is hard.

Setting up telemetry that's production grade and actually useful is even harder.

I do the hard work of figuring out Open Telemetry in Rails so you don't have to.

I'll be deploying this to production sites when it's stable enough.

Functionality

Single page to the app at the root
There's a "Refresh" link at the top of the page
Lists TODOs got from a static endpoint
When Refresh is hit, it triggers a refresh job
Click Refresh then see the traces in Datadog
All traces are sent to Datadog.
Want an invite to play around with the data? DM John Gallagher on LinkedIn

Setup

bin/setup

Test

bin/test

Want more?

Check out my Rails Observability Playbook in Notion (work in progress)
Follow me on LinkedIn
Read my book Software Design Simplified
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