deploy.sh

#!/bin/bash
set -e
set -x

provision_command="wget -O- https://gist.github.com/sobrinho/4774041 | sh"

ssh root@server1 "$provision_command"
ssh root@server2 "$provision_command"

provision.sh

#!/bin/bash

export DEBIAN_FRONTEND=noninteractive

set -e
set -x

wget -q -O - http://apt.hellobits.com/hellobits.key | apt-key add -
echo "deb http://apt.hellobits.com/ precise main" > /etc/apt/sources.list.d/hellobits.list

apt-get update
apt-get install -y build-essential \
                   libxml2-dev \
                   libxslt1-dev \
                   fontconfig \
                   git \
                   memcached \
                   postgresql \
                   libpq-dev \
                   redis-server \
                   nodejs \
                   ruby-ni

if [ ! -f /usr/local/bin/phantomjs ]; then
  wget -q -O - http://phantomjs.googlecode.com/files/phantomjs-1.8.1-linux-x86_64.tar.bz2 | tar xfj - -C /usr/local
  ln -s /usr/local/phantomjs-*/bin/phantomjs /usr/local/bin/phantomjs
fi

gem update --system

gem install bundler \
            foreman \
            heroku

sudo -u postgres psql postgres <<SQL
  DO \$\$
  BEGIN
    PERFORM usename FROM pg_user WHERE usename = 'vagrant';

    IF NOT FOUND THEN
      CREATE USER vagrant WITH CREATEDB;
    END IF;
  END\$\$
SQL