    # File lib/phusion_passenger/admin_tools/server_instance.rb, line 224
            def web_server_config_files
                    config_files = File.read("#{@generation_path}/config_files.txt").split("\n")
                    config_files.map! do |filename|
                            filename.strip
                    end
                    config_files.reject do |filename|
                            filename.empty?
                    end
                    return config_files
            end