Install local composer and drush

1. go to WHM, find MultiPHP INI Editor, find php 7.2, ensure allow_url_fopen is Enabled
2. increase ram
3. download composer
https://getcomposer.org/download/
4. Run locally php composer.phar require drush/drush:8.x
5. upload the composer.json and composer.lock files
5. Run remotely php composer.phar install
6. Run remotely ../vendor/drush/drush/drush status, cr, ups, up drupal