redis-sentinel client-reconfig-script

redis-sentinel-failover.sh

#!/bin/sh
# The following arguments are passed to the script:
#
# <master-name> <role> <state> <from-ip> <from-port> <to-ip> <to-port>

MASTER_IP=$6
VIP=172.17.0.101
NETMASK=16
IF=eth0
MY_IP=$(ip addr show dev $IF | grep "global $IF" | head -1 | sed -e "s/^.*inet \(.*\)\/$NETMASK .*$/\1/")

echo "master_ip:$MASTER_IP my_ip:$MY_IP"

if [ ${MASTER_IP} = ${MY_IP} ]; then
        echo "add $VIP/$NETMASK"
        sudo /usr/bin/ip addr add ${VIP}/${NETMASK} dev ${IF}
        # clear arp cache
        sudo /usr/bin/arping -q -c 3 -A ${VIP} -I ${IF}
else
        echo "del $VIP/$NETMASK"
        sudo /usr/bin/ip addr del ${VIP}/${NETMASK} dev ${IF}
fi