gistfile1.txt

#!/bin/bash
# <UDF name="HOSTNAME" Label="server hostname" default="linode"/>

# Update system
apt-get update
apt-get -y install aptitude
aptitude -y full-upgrade

# Setup needed packages for building Ruby
apt-get -y install gcc make git zlib1g-dev build-essential bison openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-0 libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev

# Setting up SSH-keys
wget https://raw.github.com/kaspergrubbe/publickey/master/id_rsa.pub -O key

# Setup root:
mkdir -p /root/.ssh
touch /root/.ssh/authorized_keys
cat key | cat >> /root/.ssh/authorized_keys

# colors for root:
sed -i "s/#force_color_prompt=yes/force_color_prompt=yes/g" /root/.bashrc

# Add deploy user with ssh
adduser deployer --ingroup sudo --disabled-password --gecos ""
usermod -a -G sudo deployer
sudo -u deployer mkdir -p /home/deployer/.ssh
sudo -u deployer touch /home/deployer/.ssh/authorized_keys
cat key | cat >> /home/deployer/.ssh/authorized_keys
sudo -u deployer ssh-keygen -q -t rsa -N '' -f /home/deployer/.ssh/id_rsa
rm key

# enable colors for deployer
sed -i "s/#force_color_prompt=yes/force_color_prompt=yes/g" /home/deployer/.bashrc

sudo -u deployer mkdir /home/deployer/bin
sudo -u deployer sed -i '1i PATH=/home/deployer/bin:$PATH' /home/deployer/.bashrc

sudo -u deployer source /home/deployer/.bashrc

# Ruby GC-tweaks (deployer)
echo export RUBY_HEAP_MIN_SLOTS=1000000 >> /home/deployer/.bashrc
echo export RUBY_HEAP_SLOTS_INCREMENT=1000000 >> /home/deployer/.bashrc
echo export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1 >> /home/deployer/.bashrc
echo export RUBY_GC_MALLOC_LIMIT=1000000000 >> /home/deployer/.bashrc
echo export RUBY_HEAP_FREE_MIN=500000 >> /home/deployer/.bashrc

# Dont install rdoc and stuff for gems
sudo -u deployer touch /home/deployer/.gemrc
echo gem: --no-rdoc --no-ri >> /home/deployer/.gemrc

# Compile flags
echo "" >> /home/deployer/.bashrc
echo 'export CFLAGS="-march=native -O3 -pipe -fomit-frame-pointer"' >> /home/deployer/.bashrc

# Installing RBENV
su deployer -c "cd ~ && wget https://raw.github.com/fesplugas/rbenv-installer/master/bin/rbenv-installer && bash rbenv-installer"
echo 'export RBENV_ROOT="${HOME}/.rbenv"' >> /home/deployer/.bashrc
echo 'if [ -d "${RBENV_ROOT}" ]; then' >> /home/deployer/.bashrc
echo '  export PATH="${RBENV_ROOT}/bin:${PATH}"' >> /home/deployer/.bashrc
echo '  eval "$(rbenv init -)"' >> /home/deployer/.bashrc
echo 'fi' >> /home/deployer/.bashrc

su deployer -c "git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build"
su deployer -c "cd ~ && ~/.rbenv/bin/rbenv install 2.0.0-p0"
su deployer -c "cd ~ && ~/.rbenv/bin/rbenv install 1.9.3-p392"
su deployer -c "cd ~ && ~/.rbenv/bin/rbenv global 1.9.3-p392"
su deployer -c "source ~/.bashrc"
su deployer -c "/home/deployer/.rbenv/shims/gem install bundler"
su deployer -c "cd ~ && ~/.rbenv/bin/rbenv rehash"

reboot