Otel

Pure Elixir, OpenTelemetry-compatible

Features

• Signals
  • Traces
  • Metrics
  • Logs
• Propagators
  • W3C TraceContext
  • W3C Baggage
• Exporters
  • OTLP/HTTP (Protobuf)
• Integrations
  • :logger bridge
  • :telemetry bridge

Requirements

• Elixir ~> 1.18
• Erlang/OTP ~> 26.2

Compatibility

Installation

Add :otel to deps in mix.exs:

def deps do
  [
    {:otel, "~> 0.3.0"}
  ]
end

Configuration

SDK

# config/config.exs
config :otel, otp_app: :my_app, req_options: []

Logs

:logger bridge:

# config/config.exs
config :kernel,
  logger: [
    {:handler, :otel, Otel.LoggerHandler, %{}}
  ]

Metrics

:telemetry bridge (in your supervision tree):

# lib/my_app/application.ex
children = [
  {Otel.TelemetryReporter, metrics: [...]}
]

How-to

• Trace — span lifecycle, attributes, events, status, exceptions.

License

Released under the MIT License.