This 3rd `stage <https://github.com/iiab/iiab/wiki/IIAB-Contributors-Guide#ansible>`_ installs base server infra that `Internet-in-a-Box (IIAB) <https://internet-in-a-box.org/>`_ requires, including:
-`MySQL <https://github.com/iiab/iiab/blob/master/roles/mysql>`_ (database underlying many/most user-facing apps). This IIAB role also installs apt package:
-**php{{ php_version }}-mysql** — which forcibly installs **php{{ php_version }}-common**
-`NGINX <https://github.com/iiab/iiab/blob/master/roles/nginx>`_ web server (with Apache in some lingering cases). This IIAB role also installs apt package:
-**php{{ php_version }}-fpm** — which forcibly installs **php{{ php_version }}-cli**, **php{{ php_version }}-common** and **libsodium23**
-`www_base <https://github.com/iiab/iiab/blob/master/roles/www_base>`_ (similar to `www_options <https://github.com/iiab/iiab/blob/master/roles/www_options>`_ which runs later in 4-server-options)
