Module: Datadog::Contrib::Rails::Framework

Defined in:
lib/ddtrace/contrib/rails/framework.rb

Overview

Rails framework code, used to essentially:

  • handle configuration entries which are specific to Datadog tracing

  • instrument parts of the framework when needed

Class Method Summary collapse

Class Method Details

.activate_active_record!(config) ⇒ Object 



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# File 'lib/ddtrace/contrib/rails/framework.rb', line 57

def self.activate_active_record!(config)
  return unless defined?(::ActiveRecord)

  Datadog.configuration.use(
    :active_record,
    service_name: config[:database_service],
    tracer: config[:tracer]
  )
end

.activate_rack!(config) ⇒ Object 



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# File 'lib/ddtrace/contrib/rails/framework.rb', line 46

def self.activate_rack!(config)
  Datadog.configuration.use(
    :rack,
    tracer: config[:tracer],
    application: ::Rails.application,
    service_name: config[:service_name],
    middleware_names: config[:middleware_names],
    distributed_tracing: config[:distributed_tracing]
  )
end

.config_with_defaults ⇒ Object 



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# File 'lib/ddtrace/contrib/rails/framework.rb', line 35

def self.config_with_defaults
  # We set defaults here instead of in the patcher because we need to wait
  # for the Rails application to be fully initialized.
  Datadog.configuration[:rails].tap do |config|
    config[:service_name] ||= Utils.app_name
    config[:database_service] ||= "#{config[:service_name]}-#{Contrib::ActiveRecord::Utils.adapter_name}"
    config[:controller_service] ||= config[:service_name]
    config[:cache_service] ||= "#{config[:service_name]}-cache"
  end
end

.setup ⇒ Object

configure Datadog settings



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# File 'lib/ddtrace/contrib/rails/framework.rb', line 24

def self.setup
  config = config_with_defaults

  activate_rack!(config)
  activate_active_record!(config)

  # By default, default service would be guessed from the script
  # being executed, but here we know better, get it from Rails config.
  config[:tracer].default_service = config[:service_name]
end