heepalived+redis做双机热备

keepalived配置文件   主从配置一样，需要修改优先级

global_defs {
   router_id REDIS05
}
        vrrp_instance VI_5 {
                state BACKUP
                interface bond0
                virtual_router_id 85
                priority 150
                authentication {
                             auth_type PASS
                             auth_pass redis10
                }
                advert_int 2
                virtual_ipaddress {
                    1.1.1.1
                }
                notify_master /data/scripts/redis_master.sh
                notify_backup /data/scripts/redis_backup.sh
                notify_fault  /data/scripts/redis_fault.sh
                notify_stop   /data/scripts/redis_stop.sh
        }

四个redis脚本的内容

[root@BJ-M5-GXH-REDIS-20-12 scripts]# cat redis_backup.sh 
#!/bin/bash
         
REDISCLI="/data/server/redis/bin/redis-cli"
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
         
echo "[backup]" >> $LOGFILE
date >> $LOGFILE
echo "Being slave...." >> $LOGFILE 2>&1
#sleep 25
echo "Run SLAVEOF cmd ..." >> $LOGFILE
$REDISCLI -p 6359 SLAVEOF 1.1.1.1 6359 >> $LOGFILE  2>&1   //这里的IP为对端的IP




[root@BJ-M5-GXH-REDIS-20-12 scripts]# cat  redis_fault.sh
#!/bin/bash
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "[fault]" >> $LOGFILE
date >> $LOGFILE

[root@BJ-M5-GXH-REDIS-20-12 scripts]# cat redis_master.sh 
#!/bin/bash
         
REDISCLI="/data/server/redis/bin/redis-cli"
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
         
echo "[master]" >> $LOGFILE
date >> $LOGFILE
echo "Being master...." >> $LOGFILE 2>&1
echo "Run SLAVEOF NO ONE cmd ..." >> $LOGFILE
$REDISCLI -p 6359 SLAVEOF NO ONE >> $LOGFILE  2>&1



[root@BJ-M5-GXH-REDIS-20-12 scripts]# cat redis_stop.sh 
#!/bin/bash
LOGFILE="/data/logs/redis/keepalived-redis-state.log"
echo "[stop]" >> $LOGFILE
date >> $LOGFILE

附带一个备份脚本

#!/bin/bash
#global dir variables
dir="/data/server/redis/data/"
backup_dir="/data/backups/redis/"
#global backup file name
file_name="redis-jzpush01-6359-dump.rdb"
#section backup time
section=`date +%y%m%d%H`
#execute backup
/data/server/redis/bin/redis-cli -p 6359 BGSAVE 
/bin/cp -f $dir/$file_name $backup_dir/$file_name.${section}
/usr/bin/find $backup_dir -type f -ctime +2 | xargs -n 1 rm -f