install ruby 2.1.3, git and Gems

# update apt index
apt-get update -qy

# upgrade system
apt-get upgrade -qy

# install git
apt-get install -qy git-core build-essential

# remove all unneeded packages
apt-get autoremove -qy


# default gem settings
echo 'gem: --no-ri --no-rdoc' >> /etc/gemrc

# install ruby 2.1.3 from ruby source
cd /tmp &&\
  wget -O ruby-install-0.4.3.tar.gz https://github.com/postmodern/ruby-install/archive/v0.4.3.tar.gz &&\
  tar -xzf ruby-install-0.4.3.tar.gz &&\
  cd ruby-install-0.4.3/ &&\
  make install

ruby-install ruby 2.1.3
gem install bundler;

cd /vagrant
bundle install