default_options

# File railties/lib/rails/commands/server.rb, line 90
    def default_options
      super.merge({
        Port:               ENV.fetch('PORT', 3000).to_i,
        DoNotReverseLookup: true,
        environment:        (ENV['RAILS_ENV'] || ENV['RACK_ENV'] || "development").dup,
        daemonize:          false,
        caching:            nil,
        pid:                Options::DEFAULT_PID_PATH,
        restart_cmd:        restart_command
      })
    end