I use it since 1 year on one of my servers, it’s just awesome!
App Description (source: https://rtcamp.com/easyengine/)
EasyEngine (ee) is python based command line control panel to setup NGINX server on Ubuntu and Debian Linux distribution for HTML, PHP, MySQL, HHVM, PageSpeed and WordPress sites.
Install NGINX, PHP, MySQL, Postfix and dependencies in a single command
HHVM & PageSpeed Support
Boost WordPress sites by enabling HHVM and PageSpeed using a single command
Use W3Total Cache, WP Super Cache & Nginx’s FastCGI Cache.
Automatically tweaks server configuration as per available hardware resources
Update EasyEngine for new feature with one simple command: ee update
All config changes are saved using Git so feel free to play with config!