libapache2-mod-passenger 4.0.53-1build2 (amd64 binary) in ubuntu xenial

 Phusion Passenger — a.k.a. mod_rails or mod_rack — makes
 deployment of Ruby web applications, such as those built on the
 revolutionary Ruby on Rails web framework, a breeze.
 .
 This package contains the Apache 2 module required by Phusion Passenger.