anchor.diff:  
   cloud_config_modules:
   - emit_upstart
  -- disk_setup
  -- mounts
   - ssh-import-id
   - locale
   - set-passwords
  
positive.code: - apt-configure
  - package-update-upgrade-install
  - landscape
  - timezone
  - puppet
  - chef
  
negative.code: - write-files
  - growpart
  - resizefs
  - disk_setup
  - mounts
  - set_hostname
  - update_hostname
  - update_etc_hosts
  