- Follow the instructions to install rbenv system-wide (for Vagrant support you do it in the box):
# create user and groups for rbenv
useradd -U rbenv || true
usermod -G rbenv -a vagrant # add vagrant to rbenv group; discard if you are not using Vagrant
# install rbenv itself
git clone https://github.com/rbenv/rbenv.git /usr/local/rbenv
cd /usr/local/rbenv && ./src/configure && make -C src || true