RedisのMasterホストを指定して、Slaveになるためのスクリプト。 要 redis-slaveof.py

redis-to-slave.sh

#!/bin/sh
# redis-to-slave.sh

PROG_NAME=$0
HOSTNAME=`hostname -s`
REDIS_PORT=6379

logger -t ${PROG_NAME} "Start changing ${HOSTNAME} to redis slave..."

if [ "$#" != "1" ]; then
    echo "FATAL: Invalid argument."
    echo "Usage: ${0} redis_master_hostname"
    exit 1
fi

MASTER_HOST=$1

logger -t ${PROG_NAME} "Change this host to slave."

# up to master
/usr/local/sbin/redis-slaveof.py ${MASTER_HOST} ${REDIS_PORT}
sed -i -e "s/^slaveof.*/slaveof ${MASTER_HOST} ${REDIS_PORT}/" /etc/redis/redis.conf

# setting for cluster
/sbin/service sentinel status > /dev/null 2>&1
if [ "$?" = "0" ]; then
    logger -t ${PROG_NAME} "sentinel service is running. so stop service."
    /sbin/service sentinel stop
fi

logger -t ${PROG_NAME} "Changing sentinel.conf file."

sed -e "s/__MASTER_HOST__/${MASTER_HOST}/g" /etc/redis/sentinel.conf.template > /etc/redis/sentinel.conf

logger -t ${PROG_NAME} "Start sentinel service..."

/sbin/service sentinel start
/sbin/service sentinel status > /dev/null 2>&1

if [ "$?" != "0" ]; then
    logger -t ${PROG_NAME} "Failed to start sentinel service."
fi

/sbin/chkconfig sentinel on

logger -t ${PROG_NAME} "Finished to change ${HOSTNAME} to redis master."