The rc.d script that ships with www/gitlab-ce does not support the rcvar subcommand, as in: 

# service gitlab rcvar

This causes a problem for configuration management tools (Chef, Puppet, Salt, Ansible, etc.) because they depend on the rcvar subcommand to be present to determine the variable name when enabling/disabling services.

I believe the entire input handling section of the rc.d script can be replaced with a call to 'run_rc_command'. It provides support for start, stop, restart, status, rcvar, and more.

     ### Finally the input handling.
    -
    -case $gitlab_enable in
    -  [yY][eE][sS])
    -    case "$1" in
    -      start|quietstart|faststart)
    -        start_gitlab
    -        ;;
    -      stop|faststop)
    -        stop_gitlab
    -        ;;
    -      restart)
    -        restart_gitlab
    -        ;;
    -      reload|force-reload)
    -     reload_gitlab
    -        ;;
    -      status)
    -        print_status
    -        exit $gitlab_status
    -        ;;
    -      *)
    -        echo "Usage: service gitlab {start|quietstart|faststop|stop|restart|reload|onestart|onestop|onerestart|onreload|status}"
    -        exit 1
    -        ;;
    -    esac
    -    ;;
    -  *)
    -    case "$1" in
    -      onestart)
    -        start_gitlab
    -        ;;
    -      onestop)
    -        stop_gitlab
    -        ;;
    -      onerestart)
    -        restart_gitlab
    -        ;;
    -      onreload)
    -        reload_gitlab
    -        ;;
    -      status)
    -        print_status
    -        exit $gitlab_status
    -        ;;
    -      *)
    -        echo "Usage: service gitlab {start|quietstart|faststop|stop|restart|reload|onestart|onestop|onerestart|onreload|status}"
    -        exit 1
    -        ;;
    -    esac
    -esac
    +run_rc_command "$1"