Installation script for Ubuntu Trusty 14 with rbenv, haproxy, monit

complete_ruby_haproxy_monit

#!/bin/bash
# Installation script for Ubuntu Trusty 14 with rbenv, haproxy, monit
# Author: Yacobs Reinhart <yacobus.reinhart@gmail.com>

set -e
CURRENT=`pwd`

echo "..... UPDATE UBUNTU PACKAGES ....."
apt-get update
apt-get install -y --force-yes build-essential curl git
apt-get install -y --force-yes zlib1g-dev libssl-dev libreadline-dev libyaml-dev libxml2-dev libxslt-dev
apt-get clean

echo "..... INSTALL HAPROXY ....."
apt-get install -y haproxy

echo "..... INSTALL MONIT ....."
apt-get install -y monit

echo "..... INSTALL RBENV ....."
RBENV_ROOT=/usr/local/rbenv
RBENV_VERSION=2.2.2

read -p "Please enter rbenv version (default: 2.2.2): " input_rbenv_version

if [ ! -z "$input_rbenv_version" ];then
  RBENV_VERSION=$input_rbenv_version
fi

read -p "Please enter rbenv path (default: $RBENV_ROOT): " input_rbenv_root

if [ ! -z "$input_rbenv_root" ];then
  RBENV_ROOT=$input_rbenv_root
fi

echo "Install rbenv to $RBENV_ROOT with install $RBENV_VERSION..."

if [ -d $RBENV_ROOT ]; then
  echo rbenv is already installed. So updating...
  cd $RBENV_ROOT
  git pull
  cd plugins/ruby-build
  git pull
else
  mkdir -p $RBENV_ROOT
  cd $RBENV_ROOT

  git clone https://github.com/sstephenson/rbenv.git .
  mkdir -p plugins
  git clone https://github.com/sstephenson/ruby-build.git plugins/ruby-build
fi

cd $CURRENT
export RBENV_ROOT
export RBENV_VERSION

$RBENV_ROOT/bin/rbenv install $RBENV_VERSION
$RBENV_ROOT/bin/rbenv rehash

echo Install bundler...
$RBENV_ROOT/bin/rbenv exec gem install bundler

usermod -a -G staff root
chgrp -R staff $RBENV_ROOT
chmod -R g+w $RBENV_ROOT

if [ ! $(which rbenv) ]; then
  echo "
Seems you still have not added 'rbenv' to the load path:

# ~/.bash_profile:
RBENV_ROOT=$RBENV_ROOT

if [ -d \$RBENV_ROOT ]; then
  export RBENV_ROOT
  PATH="\$RBENV_ROOT/bin:$PATH"
  eval \"\$(rbenv init -)\"
fi
"
fi

echo "Please add your user as staff to shared rbenv, the command:"
echo "sudo usermod -a -G staff your_user"