Heartbeat ClusterIP resource manager

clusterip

#!/bin/sh
#
#
# Description:	wrapper of OCF RA clustgerip, based on original heartbeat RA. See
#		OCF RA cluserip for more information.
#
# Author:	Alexander Klimenko <[email protected]>
# Support:	[email protected]
# License:	GNU General Public License (GPL)
# Copyright:	(C) 2005 International Business Machines
#
# Usage
#
# Supposed you've git two servers which traffic is ballanced with ClusterIP.
#
# First one:
#
#   iptables -A INPUT -d 10.0.0.1 -i eth1 -j CLUSTERIP --new \
#   --hashmode sourceip-sourceport --clustermac 01:00:5E:00:00:20 \
#   --total-nodes 2 --local-node 1
#
# Second:
#
#   iptables -A INPUT -d 10.0.0.1 -i eth1 -j CLUSTERIP --new \
#   --hashmode sourceip-sourceport --clustermac 01:00:5E:00:00:20 \
#   --total-nodes 2 --local-node 2
#
# To provide failover, update your /etc/ha.d/haresources like this:
#
#       node1 clusterip::10.0.0.1::1
#       node2 clusterip::10.0.0.1::2
#

PREFIX=/proc/net/ipt_CLUSTERIP

usage() {
    echo "usage: $0 [clusterip] [node] $LEGAL_ACTIONS"
    exit 1
}

case $3 in
  start)
    echo +$2 > $PREFIX/$1 || true;
  ;;
  stop)
	  echo -$2 > $PREFIX/$1 || true;
  ;;
  status)
	  nodes=`cat $PREFIX/$1`;
	  if (echo "$nodes"  | fgrep -q "$2"); then
      echo 'ok';
	  else
      echo 'fail'
	  fi
  ;;
  *)
    usage
  ;;
esac