Hi, the init script is supposed to change the group of ICINGA2_CMD_DIR to ICINGA2_COMMAND_GROUP but this variable is never set. As a result, the login group of ICINGA2_USER is used instead. I think a default of ICINGA2_COMMAND_GROUP=icingacmd shoud be added to /etc/conf.d/icinga2
it should have been icinga_group, it's fixed now in 2.3.0