# File lib/deltacloud/runner.rb, line 69
      def execute(command)
        @command = command
        config = ssh_config(@network, @credentials, @key)
        begin
          session = nil
          # Default timeout for connecting to an instance.
          # 20 seconds should be OK for most of connections, if you are
          # experiencing some Exceptions with Timeouts increase this value.
          # Please keep in mind that the HTTP request timeout is set to 60
          # seconds, so you need to fit into this time
          Timeout::timeout(20) do
            session = Net::SSH.start(@network.ip, 'root', config)
          end
          session.open_channel do |channel|
            channel.on_data do |ch, data|
              @result += data
            end
            channel.exec(command)
            session.loop
          end
          session.close
        rescue Exception => e
          raise InstanceSSHError.new("#{e.class.name}: #{e.message}")
        ensure
          # FileUtils.rm(config[:keys].first) rescue nil
        end
        Deltacloud::Runner::Response.new(self, @result)
      end