gistfile1.pp

node "rackspace-database" inherits base {
  exec{"create-fs":
    command => "mkfs -t ext3 /dev/xvde1",
    user    => 'root',
    path    => ['/usr/bin','/sbin'],
    timeout => 0,
    unless  => "/usr/bin/file -s /dev/xvde1 | /bin/grep ext3",
  }
  
  file {"/var/lib/postgresql":
    ensure  => "directory",
    require => Exec["create-fs"],
  }

  mount { "/var/lib/postgresql":
    ensure  => 'present',
    device  => "/dev/xvde1",
    fstype  => "ext3",
    options => 'defaults',
    atboot  => 'true',
    require => File["/var/lib/postgresql"],
  }

  exec{"mount-fs":
    command => "mount /dev/xvde1 /var/lib/postgresql",
    user    => 'root',
    path    => ['/usr/bin','/bin'],
    require => Mount["/var/lib/postgresql"],
    unless  => "df | grep /var/lib/postgresql"
  }
}

node "database-node-name" inherits "rackspace-database" {
  class { 'postgresql::globals':
    manage_package_repo => true,
    version             => '9.2',
    require             => Exec["mount-fs"],
  }->
  class {'postgresql::server':
  }
  include postgresql::lib::devel
}