Keepalived Install

keepalived install

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yum install -y popt-devel gcc
yum install -y kernel kernel-devel

wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
tar -zxf keepalived-1.2.7.tar.gz
cd keepalived-1.2.7

./configure --sysconf=/etc --prefix=/usr/local/keepalived --with-kernel-dir=/usr/src/kernels/2.6.32-358.2.1.el6.x86_64/

# 参数解释:
#
#    --sysconf 指定了配置文件的地址.即：/etc/keepalived/keepalived.conf
#    --prefix 指定了安装目录
#    --with-kernel-dir 指定使用内核源码中的头文件,即 include 目录.只有使用 LVS 时才需要这个参数，其它的时候不需要。
#    onfigue .成功后提示：

    Keepalived configuration
    ------------------------
    Keepalived version       : 1.2.7
    Compiler                 : gcc
    Compiler flags           : -g -O2
    Extra Lib                : -lpopt -lssl -lcrypto 
    Use IPVS Framework       : Yes
    IPVS sync daemon support : Yes
    IPVS use libnl           : No
    Use VRRP Framework       : Yes
    Use VRRP VMAC            : Yes
    SNMP support             : No
    Use Debug flags          : No
    

make
make install

cp /usr/local/keepalived/sbin/keepalived /usr/sbin/ 
# 加入服务
vi /etc/keepalived/keepalived.conf

#nginx 方案 (master)
#backup 修改state 为BACKUP priority 为99
! Configuration File for keepalived

global_defs {
   notification_email {
     #sysadmin@firewall.loc
   }
   #notification_email_from Alexandre.Cassen@firewall.loc
   #smtp_server 192.168.200.1
   #smtp_connect_timeout 30
   router_id LVS_DEVEL
}

vrrp_script chk_http_port {
    script "</dev/tcp/127.0.0.1/80"
    interval 1
    weight -2
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.56.190
    }
    track_script {
        chk_http_port
    }
}