Module: Labkit::Tracing::AutoInitialize

Defined in:
lib/labkit/tracing/auto_initialize.rb

Class Method Summary collapse

Class Method Details

.detect_service_name(connection_string) ⇒ Object 



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# File 'lib/labkit/tracing/auto_initialize.rb', line 9

def self.detect_service_name(connection_string)
  return Labkit::Tracing::DEFAULT_SERVICE_NAME unless connection_string

  begin
    parsed = URI.parse(connection_string)
    options = TracingUtils.parse_query_string(parsed.query)

    return options[:service_name] if options[:service_name]

    warn "Labkit::Tracing: service_name not found in connection string, using default: '#{Labkit::Tracing::DEFAULT_SERVICE_NAME}'"
    Labkit::Tracing::DEFAULT_SERVICE_NAME
  rescue URI::InvalidURIError => e
    warn "Labkit::Tracing: Invalid connection string (#{e.message}), using default service name: '#{Labkit::Tracing::DEFAULT_SERVICE_NAME}'"
    Labkit::Tracing::DEFAULT_SERVICE_NAME
  end
end

.enable_labkit_instrumentation ⇒ Object 



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# File 'lib/labkit/tracing/auto_initialize.rb', line 57

def self.enable_labkit_instrumentation
  Rails::ActiveRecord::Subscriber.instrument if defined?(::ActiveRecord)
  Rails::ActionView::Subscriber.instrument if defined?(::ActionView)
  Rails::ActiveSupport::Subscriber.instrument if defined?(::ActiveSupport)
  Redis.instrument if defined?(::Redis)
  ExternalHttp.instrument
rescue StandardError => e
  warn "Labkit::Tracing: LabKit instrumentation setup failed: #{e.message}"
end

.initialize! ⇒ Object 



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# File 'lib/labkit/tracing/auto_initialize.rb', line 26

def self.initialize!
  connection_string = ENV.fetch("GITLAB_TRACING", nil)
  return if connection_string.nil? || connection_string.empty?

  service_name = detect_service_name(connection_string)

  require "opentelemetry/instrumentation/concurrent_ruby"
  require "opentelemetry/instrumentation/net/http"
  require "opentelemetry/instrumentation/action_pack" if defined?(ActionPack)
  require "opentelemetry/instrumentation/action_mailer" if defined?(ActionMailer)
  require "opentelemetry/instrumentation/active_job" if defined?(ActiveJob)

  Factory.create_tracer(service_name, connection_string) do |c|
    # Enable only non-conflicting instrumentations
    # Exclude: ActiveSupport, ActiveRecord, ActionView, Redis, Rack, Sidekiq
    # (LabKit provides its own instrumentation for these via AbstractInstrumenter)

    # Core instrumentations
    c.use("OpenTelemetry::Instrumentation::ConcurrentRuby")

    # Rails components that don't conflict with LabKit
    c.use("OpenTelemetry::Instrumentation::ActionPack") if defined?(ActionPack)
    c.use("OpenTelemetry::Instrumentation::ActionMailer") if defined?(ActionMailer)
    c.use("OpenTelemetry::Instrumentation::ActiveJob") if defined?(ActiveJob)
  end

  enable_labkit_instrumentation
rescue StandardError => e
  warn "Labkit::Tracing auto-initialization failed: #{e.message}"
end