samba-mirror/ctdb/config/events.d/11.routing

#!/bin/sh
# script to add entries to the routing table after we have performed a
# take ip event
# (when we do a "releaseip" event and remove an ip address from an interface
#  the kernel might automatically remove associated entries from
#  the routing table. This is where we add them back)
#
# Routes to add are defined in /etc/ctdb/static-routes.
# Syntax is :
# IFACE NET/MASK GATEWAY
#
# Example
# bond1 10.3.3.0/24 10.0.0.1

[ -n "$CTDB_BASE" ] || \
    export CTDB_BASE=$(cd -P $(dirname "$0") ; dirname "$PWD")

. $CTDB_BASE/functions
loadconfig

[ -f $CTDB_BASE/static-routes ] || {
    exit 0
}

case "$1" in
    ipreallocated)
        while read iface dest gw; do
            ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
        done <"${CTDB_BASE}/static-routes"
        ;;

    updateip)
	oiface=$2
	niface=$3
	while read iface dest gw; do
	    if [ "$niface" = "$iface" -o "$oiface" = "$iface" ] ; then
		ip route add "$dest" via "$gw" dev "$iface" >/dev/null 2>&1
	    fi
	done <"${CTDB_BASE}/static-routes"
	;;

    *)
	ctdb_standard_event_handler "$@"
	;;
esac

exit 0