feat: update example service config file

Author: marjune163

conf/systemV/etc/init.d/ghfs

@@ -26,7 +26,8 @@ pidfile="/var/run/${prog}.pid"
 
 start() {
 	echo -n $"Starting $prog: "
-	"$ghfs" --config=/etc/ghfs.conf &
+	setcap CAP_NET_BIND_SERVICE=+ep "$ghfs"
+	runuser -u nobody -- "$ghfs" --config=/etc/ghfs.conf &
 	retval=$?
 	echo
 	if [ $retval -eq 0 ]; then

conf/systemd/etc/systemd/system/ghfs.service

@@ -4,7 +4,8 @@ After=network.target
 
 [Service]
 Type=simple
-ExecStart=/usr/local/bin/ghfs --config=/etc/ghfs.conf
+ExecStartPre=setcap CAP_NET_BIND_SERVICE=+ep /usr/local/bin/ghfs
+ExecStart=runuser -u nobody -- /usr/local/bin/ghfs --config=/etc/ghfs.conf
 ExecReload=/bin/kill -s HUP $MAINPID
 KillSignal=SIGTERM
 KillMode=process

conf/systemd/etc/systemd/system/ghfs@.service

@@ -4,7 +4,8 @@ After=network.target
 
 [Service]
 Type=simple
-ExecStart=/usr/local/bin/ghfs --config=/etc/ghfs_%I.conf
+ExecStartPre=setcap CAP_NET_BIND_SERVICE=+ep
+ExecStart=runuser -u nobody -- /usr/local/bin/ghfs --config=/etc/ghfs_%I.conf
 ExecReload=/bin/kill -s HUP $MAINPID
 KillSignal=SIGTERM
 KillMode=process