/usr/bin/garb-systemd is in percona-galera-arbitrator-3 3.21-0ubuntu2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 | #!/bin/bash -ue
#
if [ -f /etc/sysconfig/garb ]; then
    config=/etc/sysconfig/garb
elif [ -f /etc/default/garb ]; then
    config=/etc/default/garb
else
    log_failure "Garbd configuration file not found"
    return 6
fi
log_failure() {
    echo " ERROR! $@"
}
program_start() {
	echo "Starting garbd"
        /usr/bin/garbd "$@"
}
start() {
	if grep -q -E '^# REMOVE' $config;then 
	    log_failure "Garbd config $config is not configured yet"
	    return 0
	fi
	# Check that node addresses are configured
	if [[ -z "${GALERA_NODES:-}" ]]; then
		log_failure "List of GALERA_NODES is not configured"
		return 6
	fi
	if [[ -z "${GALERA_GROUP:-}" ]]; then
		log_failure "GALERA_GROUP name is not configured"
		return 6
	fi
	GALERA_PORT=${GALERA_PORT:-4567}
	OPTIONS="-a gcomm://${GALERA_NODES// /,}"
	# substitute space with comma for backward compatibility
	[ -n "${GALERA_GROUP:-}" ]   && OPTIONS="$OPTIONS -g '$GALERA_GROUP'"
	[ -n "${GALERA_OPTIONS:-}" ] && OPTIONS="$OPTIONS -o '$GALERA_OPTIONS'"
	[ -n "${LOG_FILE:-}" ]       && OPTIONS="$OPTIONS -l '$LOG_FILE'"
	eval program_start $OPTIONS
}
# See how we were called.
case "$1" in
  start)
	start
	;;
  *)
	echo $"Usage: $0 {start}"
	exit 2
esac
exit $?
 |