#!/bin/sh

   #########################################################
  #                                                        #
 #           Written 12/17/08 by Jeff Schroeder           ##
#########################################################  #
#                                                       #  #
# keepalived-query.sh - Query the currently running     #  #
#                       keepalived instance and print   #  #
#                       running status and ip address   #  #
#                                                       # #
##########################################################

# $Id$

if [ ! -f /etc/keepalived/keepalived.conf ]; then
    echo "Keepalived not installed or properly configured" >&2
    exit 1
fi

config=/etc/keepalived/keepalived.conf
status=$(basename $(ls /var/run/{MASTER,BACKUP} 2>/dev/null) 2>/dev/null)
interface=$(awk '/[\t ]+interface /{print $NF}' $config)
track_int=$(awk '{if ($1 == "track_interface") {getline;print $NF}}' $config)
num_aliases=$(ip addr show | sed -rn "/${interface}/,/^[0-9]+: [a-z]+[0-9]+:/p" | grep -c inet)

if [ $num_aliases = 2 ]; then
    vip=$(ip addr show | sed -rn "/${interface}/,/^[0-9]+: [a-z]+[0-9]+:/p" | \
          awk '/inet/{if ($3 != "brd") print $2}' | \
          sed -re 's:/[0-9]{2}$::')
else
    vip="UNKNOWN"
fi

if ! ifconfig | grep -q ^$track_int; then
    echo "Track interface $track_int is down. This server is in maintenance mode"
else
    echo "${status:-UNKNOWN} state with a vip of $vip on ${interface:-UNKNOWN}"
fi