ucarp.initd

ucarp.initd (text/plain), 1.61 KB, created by Natanael Copa on 2008-04-08 13:17:29 UTC

#!/sbin/runscript
# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $


# A simple script to start and stop a ucarp instance
# Things you can set here
# REALIP - if not set, will be first addr on iface
# VHID - Virtual Server ID
# VIP - The Virtual IP
# PASSWORD - The password for the carp announcements

REALIP=
VHID=2
VIP=127.0.0.1
PASSWORD=SecretPassword
DAEMON=/usr/sbin/ucarp

IFACE="${SVCNAME#*.}"
if [ -n "$IFACE" ] && [ "${SVCNAME}" != "ucarp" ]; then
	UP="/etc/ucarp/vip-up-$IFACE.sh"
	DOWN="/etc/ucarp/vip-down-$IFACE.sh"
	. /etc/ucarp/$IFACE.conf
else
	UP="/etc/ucarp/vip-up.sh"
	DOWN="/etc/ucarp/vip-down.sh"
fi


# Get the primary ip address for a given interface
get_first_ip() {
	local foo=$( ip addr show $1 )
	[ $? != 0 ] && foo=""
	echo $( echo "$foo" | grep "inet " | head -n1 | \
		sed "s+^.*inet ++g; s+/.*$++g" )
}

if [ -z "$REALIP" ]; then
	REALIP=$( get_first_ip $IFACE )
fi

start () {
	ebegin "Starting ucarp $IFACE"
	start-stop-daemon --start --exec $DAEMON \
		--background -m -p /var/run/ucarp-$IFACE.pid -- \
		-i $IFACE -s $REALIP -v $VHID -p $PASSWORD -a $VIP \
		-u $UP -d $DOWN -z 
	eend $?
}

status () {
	ebegin "ucarp $IFACE is ..."
	PIDS=$( pidof $( basename $DAEMON ))
	PID=$( cat /var/run/ucarp-$IFACE.pid 2>/dev/null )
	[ -n "$PID" ] && OK=$( echo "$PIDS" | grep "$PID" )
	if [ -n "$OK" ]; then
	echo "running" 
		exit 0
	else
		echo "not running"
		exit 1
	fi
}

stop () {
	ebegin "Shuting down ucarp $IFACE"
	start-stop-daemon --stop --exec $DAEMON \
		-p /var/run/ucarp-$IFACE.pid
	[ $? -eq 0 ] && rm /var/run/ucarp-$IFACE.pid
	eend $?
}