Fixes #5039: Adapt rudder-init and rudder-upgrade to use rudder-server-roles.conf for initialization
Merge pull request #374 from jooooooon/int_5039/adapt_rudder_init_and_rudder_upgrade_to_use_rudder_server_roles_conf_for_initialization

Int 5039/adapt rudder init and rudder upgrade to use rudder server roles conf for initialization