class Puma::Configuration

def puma_options_from_env
  min = ENV['PUMA_MIN_THREADS'] || ENV['MIN_THREADS']
  max = ENV['PUMA_MAX_THREADS'] || ENV['MAX_THREADS']
  workers = ENV['WEB_CONCURRENCY']
  {
    min_threads: min && Integer(min),
    max_threads: max && Integer(max),
    workers: workers && Integer(workers),
    environment: ENV['APP_ENV'] || ENV['RACK_ENV'] || ENV['RAILS_ENV'],
  }
end