<proxy>
  <enabled config:type="boolean">true</enabled>
  <ftp_proxy></ftp_proxy>
  <http_proxy>$proxy</http_proxy>
  <https_proxy></https_proxy>
  <no_proxy>localhost, 127.0.0.1</no_proxy>
  <proxy_password></proxy_password>
  <proxy_user></proxy_user>
</proxy>