Umbrtonic

Gem for transferring Active Support Instrumentation events to the InfluxDB database via UDP without boilerplate code.

Installation

Add this line to your application's Gemfile:

gem 'umbrtonic'

And then execute:

$ bundle

Or install it yourself as:

$ gem install umbrtonic

Configuration

Under the hood Umbrtonic uses Qonfig gem.

By default, gem sends data to 127.0.0.1:8089. You are able to change this easily:

Umbrtonic.configure do |conf|
  conf.influxdb.host = "another.machine"
  conf.influxdb.port = 4444
end

Using a custom prefix

Optionally you are able to set a prefix:

Umbrtonic.configure do |conf|
  conf.prefix = "my_app"
end

For example, when you subscribe to actions, points to InfluxDB will be sent as my_app_actions.

Alternatively, it is possible to configure with file:

production:
  prefix: custom
  influxdb:
    host: 127.0.0.1
    port: 8094
# etc

and then load configuration:

Umbrtonic.config.load_from_yaml(
  Rails.root / "config" / "umbrtonic.yml",
  expose: Rails.env
)

Usage

Umbrtonic.bind("process_action.action_controller") do |inf, event, payload|
  inf.values(
    count:      1, 
    duration:   event.duration, 
    db_runtime: event.payload[:db_runtime],
  )

  inf.tags(
    controller: payload[:controller], 
    action:     payload[:action],
  )
end

Gem provides instance of InfluxDB data builder and information about the event and payload for quick access:

Umbrtonic.bind("process_action.action_controller") do |inf, event, payload|
  event.name     # => "process_action.action_controller"
  event.duration # => 10 (in milliseconds)
  event.payload  # => event-specific payload 

  payload        # => event-specific payload, alias for event.payload 
end

See more information about Active Support Notifications here

You are able to set custom name for event:

Umbrtonic.bind("process_action.action_controller", measurement: "actions") do |inf, event, payload|
  # your bindings
end

In this example events will be sent as actions.

There is complete list of Ruby on Rails hooks

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/umbrellio/umbrtonic.