Drupal ImageEngine Integration
In the Drupal admin portal click on “Modules”, then click on “Install New Module”
Go to Extend, Install new module, install from a URL, then enter in the CDN module URL:
http://ftp.drupal.org/files/projects/cdn-8.x-3.0.zipand click install. If installing from a URL does not work, download the CDN module and upload it as shown below.
In “Extend” find the Web Services section and select both “CDN” and “CDN UI” and click install."
Next go to
Configure > Web Services > CDN Integration.
Enable CDN under Status. Then under mapping and select the setting to serve all files or all files except CSS + JS then enter the ImageEngine URL that you configured in Step 2 and Save Configuration.