Register base product & extensions with SUSEConnect
suseconnect_registration();Register base prodcut and extensions without reg code
command_register($version, $addon, $addon_regcode);Register sles and it's extension with or without reg code. The variables used for registion are product version $version, extension name $addon and it's extension registration code $addon_regcode.
Precompile regexes, handle zdup migration and resolve potential conflict by zypper for extension or just register a bare system
assert_module();check there are modules in the addon list