Does this work with anything running on Cloud Next or just Drupal and PHP?

Acquia tested that Web EIPs work with the following methods for making HTTP/HTTP requests from Drupal, PHP, or command line:

• curl on the command line or through exec("curl") in PHP
• drupal_http_request() function in Drupal 7
• \Drupal::httpClient in the current Drupal version
• curl functions from PHP curl extension