Telemetry events

[shanesveller]

Environment

• Bonny version: 0.2.3
• Elixir & Erlang/OTP versions (elixir --version): (any supported)
• Operating system: (any supported)

Current behavior

As a responsible operator, I like to instrument my long-running services for gathering metrics (with Prometheus, in my case) and currently must do so in my own code only, but cannot capture easily any events/data handled directly/only by the Bonny framework itself.

Desired behavior

Bonny could introduce a dependency on Telemetry for emitting runtime events from the framework, which can be captured by anyone who wishes to instrument such events. This library has been adopted by Ecto (currently implemented by ecto_sql in 3.x), among others within the Elixir community.

A less well-established alternative could be the OpenCensus BEAM implementations.

[coryodaniel]

This.

I’d like to get Prometheus #4 tied into telemetry as well and some event data #5.