Add TracePoint to find certain classes from the rails environment

boot.rb

# Add ruby tracepoint
EXCLUDED_CLASSES  = %w(Sidekiq::Worker Delayed::Worker Unicorn::Worker Sidekiq::Worker Parallel::DeadWorker
                       Parallel::Worker Concurrent::RubyThreadPoolExecutor::Worker Twilio::REST::TaskRouter::Worker)
$__TRACE_WORKERS  = []

trace = TracePoint.new(:class) do |tp|
  class_name = tp.self.name

  next if class_name.nil?
  next if EXCLUDED_CLASSES.include?(class_name)
  next unless class_name.match(/Worker$/)

  $__TRACE_WORKERS << class_name
end

trace.enable

# End ruby tracepoint