sudo su
mkdir /opt/services
cd /opt/services

yum install -y git

# Parsoid is a necessary component to support saving edits performed by VisualEditor
git clone https://gerrit.wikimedia.org/r/p/mediawiki/services/parsoid

# Install Epel repository; necessary for installing nodejs/npm
rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

# Install nodejs and npm
yum -y --enablerepo=epel install npm nodejs

cd /opt/services/parsoid
npm install