Information for: DEVELOPERS   PARTNERS

Acquia Cloud technology platform and supported software

Acquia Cloud runs on the following technology stack:

Component Version
Web server OS Ubuntu 16.04 (changelog)
Web server Apache 2.4.18 (upgrade notes)
Load Balancer Nginx 1.12.1 (changelog)
Database Percona Server 5.6 (changelog) (MySQL 5.6 (changelog)
PHP PHP 7.1.29 (changelog), PHP 7.2.18 (changelog), PHP 7.3.5 (changelog)
Caching proxy and load balancer Varnish® 5.2.1 (changelog) Nginx (changelog)
Memory cache memcached 1.5.1 (changelog), memcached 2.2.0
New Relic New Relic (changelog)

Note regarding memcached

  • Memcached is not available on Acquia Cloud Free

Supported software and features

Acquia Cloud supports:

  • Your Drupal 8 or Drupal 7 code
  • Drush 8 or Drush 9
  • Integrated version management (Git)
  • SSL Certificates (additional fee required)
  • Automated disaster recovery backup
  • Custom cron jobs
  • Shell access using SSH
  • File access using sftp and rsync
  • MySQL administration using the MySQL CLI or other tools
  • The current and prior major release of the Chrome, Firefox, Internet Explorer, and Safari web browsers

In addition, Acquia Cloud Enterprise supports the following Enterprise features:

  • High-availability failover using multiple Amazon Web Services data centers (Availability Zones)
  • Outgoing VPN access (Cisco VPN compatible - additional fee required)
  • Shared authentication or single sign-on using LDAP or SAML (contact your Sales Engineer for cost and compatibility information)
  • Multi-region replication (additional fee required)

All Acquia subscribers receive access to the following Acquia services:

  • Acquia Search - Easily add scalable search to your website
  • Insight - Information about your Drupal website’s optimization and security

Users of Node.js features on Acquia Cloud can find stack information at Resources and limitations for Node.js environments.

Included software

Your Acquia Cloud server includes the following (non-complete) list of software packages:

Software Version
APCu 4.0.11 (changelog)
ClamAV 0.99.3 (changelog)
Development tools (vim, emacs, gcc)  
Drush 8 and 9 (default version: Drush 8) 8.1.17, 9.3.0 (changelog)
Git 2.7.4
Ghostscript (changelog)  
OpenSSL 1.0.2 series (changelog)
ssh2 0.13 (changelog)
sysdig 0.13.0

The following programming languages are included with Acquia Cloud for your convenience, without Support or the adding of additional libraries:

Language Version
PHP 7.1.29, 7.2.18, 7.3.5
Python 2.7.14 (changelog), 3.5.x (changelog)
Ruby 2.1.9 (changelog)

PHP 7 support note

  • Drupal 8 - PHP 7 is fully supported on Drupal 8, and the official Drupal core test suite passes for all supported database engines (including MySQL, SQLite, and PostgreSQL). For details, see Support PHP 7 on
  • Drupal 7 - Drupal core officially supports PHP 7. Acquia recommends fully testing before upgrading your production website, as there are several backwards incompatible changes.

Acquia Cloud also includes the following items:

  • Common Linux command-line utilities
  • Standard networking tools (including curl, wget, and traceroute)
  • Performance analysis tools (including ps, top, and strace).
  • Common PEAR and PECL libraries
  • Common PHP modules (including PDO, FreeTDS, OpenSSL, json, curl, and xml). For detailed information, go to your Drupal website’s PHP information page at /admin/reports/status/php

Unsupported software

Acquia Cloud does not support the following software:

  • Moodle (not compatible with high availability)
  • piwik (we have repeatedly seen this cause performance issues)
  • Any non-Drupal Content Management System (CMS)
  • CA Single Sign-on (formerly CA SiteMinder)

The following software cannot be installed on Acquia Cloud:

  • Non-standard database software, such as Oracle or Microsoft SQL Server
  • Custom daemons or services, such as Jabber or Microsoft Exchange
  • Custom package installations that require apt-get

You can still install custom executables using your code repository.

Some Drupal contributed modules are incompatible with Acquia Cloud, or may require special configuration or care. For more information, see Modules and applications incompatible with Acquia Cloud.

Configuration changes

The Acquia Cloud platform uses configuration management systems to ensure stability and consistency. As a result, we do not support custom OS configuration changes, nor are we able to make arbitrary customizations to configuration files such as Apache virtual hosts. Among other problems, such changes can cause your installation to fall outside the test suite for releases and upgrades, and any changes may not reliably survive a relaunch.

Supported customizations include: