Install ze things

passenger_on_ubuntu.sh

#! /bin/bash

set -e

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 561F9B9CAC40B2F7
sudo apt-get install apt-transport-https ca-certificates
sudo echo 'deb https://oss-binaries.phusionpassenger.com/apt/passenger trusty main' > /etc/apt/sources.list.d/passenger.list
sudo chown root: /etc/apt/sources.list.d/passenger.list
sudo chmod 600 /etc/apt/sources.list.d/passenger.list

sudo apt-get update

sudo apt-get install -y make build-essential libcurl4-openssl-dev libssl-dev zlib1g-dev \
  libreadline6-dev libyaml-dev git libffi6 libffi-dev ruby2.0 nginx-extras ruby-passenger

sudo apt-get -y upgrade
passenger-install-nginx-module