Initialize global environment for RBenv, Ruby 1.9.3, Apache2 and Passenger

rbenv-init.sh

#!/bin/bash
# Installs RBenv for production mode with passenger
rbenv_dir=/usr/local/lib/rbenv
profile_init=/etc/profile.d/rbenv.sh

# Install packages
apt-get install git build-essential apache2 openssl libcurl4-openssl-dev apache2-prefork-dev zlib1g zlib1g-dev

# Install rbenv
mkdir -p ${rbenv_dir}
rm -fr ${rbenv_dir}
git clone git://github.com/sstephenson/rbenv.git ${rbenv_dir}

# Add rbenv to the path:
echo '# rbenv setup' > ${profile_init}
echo "export RBENV_ROOT=${rbenv_dir}" >> ${profile_init}
echo 'export PATH="$RBENV_ROOT/bin:$PATH"' >> ${profile_init}
echo 'eval "$(rbenv init -)"' >> ${profile_init}

# echo "# RBenv conf" >> /etc/environment
# echo "RBENV_ROOT=${rbenv_dir}" >> /etc/environment
# echo 'PATH="$RBENV_ROOT/shims:$RBENV_ROOT/bin:$PATH"' >> /etc/environment

echo '' >> "$HOME/.profile"
echo '# Load RBenv for root' >> "$HOME/.profile"
echo "source ${profile_init}" >> "$HOME/.profile"

chmod +x ${profile_init}
source ${profile_init}

# Install ruby-build:
pushd /tmp
rm -fr ruby-build
git clone git://github.com/sstephenson/ruby-build.git
cd ruby-build
./install.sh
popd

# Install Ruby 1.9.3-p194:
rbenv install 1.9.3-p194 --with-openssl-dir=/usr/lib
rbenv global 1.9.3-p194

# Rehash:
rbenv rehash

# Install base gems
gem install bundle passenger --no-ri --no-rdoc

# Rehash:
rbenv rehash

# Install passenger
passenger-install-apache2-module --auto
passenger-install-apache2-module --snippet > /etc/apache2/conf.d/passenger

# Restart Apache2
invoke-rc.d apache2 restart