Lvs verification

Ce script vérifie l'état de la synchro drdb, certaines lignes concernent de la supervision spécifique, elles peuvent etre ignorées. Cela remonte un état des vip et des virtual routers comme ca : Média:Check_lvs_rapport.png

#!/bin/bash

KCONF="/opt/applis/keepalived/etc/keepalived/keepalived.conf"
OUTIP="/tmp/output.ipb"
OUTIPV="/tmp/output.ipv"
VISION=/opt/agarik/Vision/bin/bb_send_raw
DISPLAY="supervision.so.agarik.eu:1984"
TARGET="`/bin/hostname -f`"
SERVICE=appli
LOG=/var/log/appli_sup.log
LOOKUPVIP=1
LOOKUPRIP=1

function lookup() {
        ip=$1
        host=`host $ip | awk '{print $5}'`
        echo $host
}

ip a l > $OUTIP

/sbin/ipvsadm -ln  | tee > $OUTIPV # le | tee permet d'eviter un bug sur CA

exec > $LOG

color="green"
echo "Virtuals routers"
for vrrp in `egrep -e "\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$" $KCONF | grep -v server | grep -v ^#`
do
        host=""
        isactive=0
        shouldbeactive=0
        isstate="SLAVE"
        shouldbestate="SLAVE"
        if [ `cat $OUTIP | grep -c "$vrrp/"` -eq 1 ]; then
                isactive=1
                isstate="MASTER"
        fi
        if [ `egrep -e "state|$vrrp$|$vrrp/" $KCONF | grep -B1 $vrrp | grep -c MASTER` -ne 0 ]; then
                shouldbeactive=1
                shouldbestate="MASTER"

        fi
        if [ $LOOKUPVIP -eq 1 ]; then
                host=$(lookup $vrrp)
        fi
        echo "$isstate" > /tmp/tmp_$vrrp
        if [ "$shouldbeactive" == "$isactive" ]; then
                printf "%15s ($isstate &green) $host\n" $vrrp
        else
                echo "$vrrp ($isstate != $shouldbestate &red) $host"
                color="red"
        fi

done

echo "====================== VIPS =========================="
for service in `cat $KCONF | egrep "\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?) " | grep -v real_server | grep -v ^# | grep -v sorry_server | awk '{print $1"_"$2"_"$3}' `
do
        vcolor="green"
        rcolor="clear"
        if [ `echo $service | grep -c "virtual_server"` -eq 1 ]; then
        vip=`echo $service| cut -d '_' -f 3`
        port=`echo $service| cut -d '_' -f 4`
        groupname="";
        else
        vip=`echo $service| cut -d '_' -f 1`
        port=`echo $service| cut -d '_' -f 2`
        groupname=`cat $KCONF | egrep "virtual_server_group|$vip $port" | grep -B1 "$vip $port" | grep "group" | cut -d " " -f 2`
        fi
# TODO : Ajouter un check sur l'etat de la VIP en plus de l'etat des REAL
        thisone=0
        echo > /tmp/tmp_$$
        for real in `egrep -e "virtual_server|real_server" $KCONF | awk '{print $1"_"$2"_"$3}'`
        do
                host=""
                if [ `echo $real | grep -c virtual_server` -eq 1 ]; then
                        thisone=0; # De base, je ne suis pas dans la bonne vip si je commence une nouvelle VIP
                fi
                if [ "virtual_server_"$vip"_$port" == "$real" -o "virtual_server_group_$groupname" == "$real" ]; then
                        thisone=1 # par contre, si je suis dans la bonne, j'active
                        continue;
                fi
                if [ $thisone -eq 0 ]; then
                        continue; # Et je passe tout de suite au suivant si ca n'est pas le cas
                fi
                rip=`echo $real | cut -d '_' -f 3`
                rport=`echo $real | cut -d '_' -f 4`
                active=`egrep -e "$vip:$port|$rip:$rport" $OUTIPV | grep -A1 $vip |grep $rip | awk '{print $5}'`
                inactive=`egrep -e "$vip:$port|$rip:$rport" $OUTIPV | grep -A1 $vip |grep $rip | awk '{print $6}'`
                if [ $LOOKUPRIP -eq 1 ]; then
                        host=$(lookup $rip)
                fi

                if [ `grep -c $rip:$rport $OUTIPV` -eq 0 ]; then
                        isactive=0;
                        isstate="DOWN &red ($active/$inactive) $host";
                        color="red";
                        vcolor="red";
                        if [ "$rcolor" == "green" -o "$rcolor" == "yellow" ]; then rcolor="yellow";else rcolor="red";fi
                else
                        isactive=1;
                        isstate="UP &green ($active/$inactive) $host";
                        if [ "$rcolor" == "red" -o "$rcolor" == "yellow" ]; then rcolor="yellow";else rcolor="green";fi
                fi
                printf "   Real : %15s:$rport : $isstate\n" $rip >> /tmp/tmp_$$
        done
        host=""
        if [ $LOOKUPVIP -eq 1 ]; then
                host=$(lookup $vip)
        fi
        echo -n " VIP : $vip:$port (`cat /tmp/tmp_$vip` &$rcolor) $host"
        cat /tmp/tmp_$$
        echo "------------------------------------------------------"
done

rm -f $OUTIP
rm -f $OUTIPV
rm -f /tmp/tmp_*

DATA="status+12 $TARGET.$SERVICE $color `/bin/date` $SERVICE
`cat $LOG`"

$VISION $DISPLAY "$DATA"