Keepalived 安装配置

版本信息

Linux version 3.10.0-514.el7.x86_64

keepalived-1.3.6

 

mkdir /usr/local/keepalived/

cd /keepalived/keepalived-1.3.6

yum install gcc -y

yum install openssl-devel -y

./configure --prefix=/usr/local/keepalived/

make&&make install

 

 

mkdir /etc/keepalived

vim /etc/init.d/keepalived

chmod +x /etc/init.d/keepalived

cp /usr/local/keepalived/sbin/keepalived /usr/sbin/

cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/

cp /usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/

 

mv /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

vi /etc/keepalived/keepalived.conf

vim /usr/local/keepalived/bin/mysql.sh

service keepalived start

chkconfig --add keepalived

chkconfig --level 35 keepalived on

systemctl enable keepalived.service

 

#配置文件keepalived.conf#

#! Configuration File for keepalived

global_defs {

router_id mysql-ha1 #修改为自己的主机名

             }

##################第一部分###################

vrrp_instance VI_1 {

     state BACKUP #都修改成BACKUP

     interface ens160

     virtual_router_id 60 #默认51 主从都修改为60

     priority 80 #在mysql-ha2上LVS上修改成80

     advert_int 1

     nopreempt #不抢占资源,意思就是它活了之后也不会再把主抢回来

     authentication {

     auth_type PASS

     auth_pass 1111

     }

virtual_ipaddress {

     10.0.80.148

     }

}

##################第二部分###################

virtual_server 10.0.80.148 3306 {

     delay_loop 6

     lb_algo wrr

     lb_kind DR

     nat_mask 255.255.255.0

     persistence_timeout 50

     protocol TCP

 real_server 10.0.80.135 3306 {

     weight 1

     notify_down /usr/local/mysql/bin/mysql.sh

     TCP_CHECK {

         connect_timeout 10

         nb_get_retry 3

         connect_port 3306

         }

     }

}

 

 

 

 

#配置文件/etc/init.d/keepalived#

 

 

#!/bin/sh

#

# Startup script for the Keepalived daemon

#

# processname: keepalived

# pidfile: /var/run/keepalived.pid

# config: /etc/keepalived/keepalived.conf

# chkconfig: - 21 79

# description: Start and stop Keepalived

 

# Source function library

. /etc/rc.d/init.d/functions

 

# Source configuration file (we set KEEPALIVED_OPTIONS there)

. /etc/sysconfig/keepalived

 

RETVAL=0

 

prog="keepalived"

 

start() {

    echo -n $"Starting $prog: "

    daemon keepalived ${KEEPALIVED_OPTIONS}

    RETVAL=$?

    echo

    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog

}

 

stop() {

    echo -n $"Stopping $prog: "

    killproc keepalived

    RETVAL=$?

    echo

    [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog

}

 

reload() {

    echo -n $"Reloading $prog: "

    killproc keepalived -1

    RETVAL=$?

    echo

}

 

# See how we were called.

case "$1" in

    start)

        start

        ;;

    stop)

        stop

        ;;

    reload)

        reload

        ;;

    restart)

        stop

        start

        ;;

    condrestart)

        if [ -f /var/lock/subsys/$prog ]; then

            stop

            start

        fi

        ;;

    status)

        status keepalived

        RETVAL=$?

        ;;

    *)

        echo "Usage: $0 {start|stop|reload|restart|condrestart|status}"

        RETVAL=1

esac

 

 

 

 

 

 

 

#配置文件 /usr/local/keepalived/bin/mysql.sh#

 

#!/bin/bash

pkill keepalived

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