The following cloud-init modules are currently unsupported on this OS:
 - apt_update_upgrade ('apt_update', 'apt_upgrade', 'apt_mirror', 'apt_preserve_sources_list', 'apt_old_mirror', 'apt_sources', 'debconf_selections', 'packages' options)
 - byobu ('byobu_by_default' option)
 - chef
 - grub_dpkg
