install-amazon-linux-rbenv.sh

#
# Usage: install-amazon-linux-rbenv.sh
#
# This script is meant to work in conjunction with: 
#   https://gist.github.com/foscomputerservices/e97aeccbc820c42ff125
#
# If the EBS mount-point /mnt/bamboo-ebs/.rbenv exists, that will be used as the .rbenv directory,
# otherwise a full install of ruby/rails will be performed.
#
# For install to succeed, the following packages must already be installed:
#   * yum install -y openssl-devel readline-devel zlib-devel mysql-devel mysql-libs
#   * yum install -y gcc ruby-devel libxml2 libxml2-devel libxslt libxslt-devel

set -x

RUBY_VER="2.4.1"
INSTALL=""

if [ -e /mnt/bamboo-ebs/.rbenv ] ; then
  INSTALL=""
else
  INSTALL="-install"
fi

if [ "$INSTALL" = "-install" ]; then
  echo "Installing RBENV..."

  # Manually configure RBENV
  git clone git://github.com/sstephenson/rbenv.git $HOME/.rbenv
  git clone git://github.com/sstephenson/ruby-build.git $HOME/.rbenv/plugins/ruby-build
else
  # Copy pre-configured Ruby on Rails configuration from EBS
  cp -R /mnt/bamboo-ebs/.rbenv $HOME
fi

export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/plugins/ruby-build/bin:$PATH"
echo 'export PATH="$HOME/.rbenv/bin:$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> $HOME/.bashrc
eval "$(rbenv init -)"
echo 'eval "$(rbenv init -)"' >> $HOME/.bashrc

# Manually install Ruby (takes about 12 minutes)
if [ "$INSTALL" = "-install" ] ; then
  echo "Installing Ruby version $RUBY_VER..."

  rbenv install $RUBY_VER
fi
rbenv global $RUBY_VER

if [ "$INSTALL" = "-install" ] ; then
  echo 'gem: --no-document' > $HOME/.gemrc

  gem install bundler
#  gem install aws-sdk # Amazon Web Service support
#  gem install rails -v $RAILS_VER
  rbenv rehash
fi

if [ "$INSTALL" = "-install" ] ; then
  # Source: https://github.com/teampoltergeist/poltergeist
  wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x86_64.tar.bz2
  tar xvjf phantomjs-2.1.1-linux-x86_64.tar.bz2
  mkdir $HOME/bin
  cp phantomjs-2.1.1-linux-x86_64/bin/phantomjs $HOME/bin
fi

echo "**************************************************"
echo "*** Amazon Linux Ruby Installation Complete!!! ***"
echo "**************************************************"