centos7 keepalived 离线安装

两台服务器

master : 10.214.130.100

slave : 10.214.130.101

vip（keepalived虚拟ip） : 10.214.130.102

1、下载：

登陆官网(http://www.keepalived.org/download.html) 下载安装包：

http://www.keepalived.org/software/keepalived-2.0.6.tar.gz

wget http://www.keepalived.org/software/keepalived-2.0.6.tar.gz

2、安装

解压： tar -zxvf keepalived-2.0.6.tar.gz 

[root@dcmp2 opt]# ll
total 2174204
drwxr-xr-x. 2 root root       4096 Aug 21 10:20 install-keepalived-software
-rw-r--r--. 1 root root  166040563 Aug 14  2017 jdk-8u111-linux-x64.rpm
-rw-r--r--. 1 root root     853859 Aug 21 10:21 keepalived-2.0.6.tar.gz
[root@dcmp2 opt]# tar -zxvf keepalived-2.0.6.tar.gz 

编译：

cd  keepalived-2.0.6

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

[root@dcmp2 opt]# cd keepalived-2.0.6
[root@dcmp2 keepalived-2.0.6]# ./configure --prefix=/usr/local/keepalived

prefix 指定安装的目录

编译过程一般都不太顺利，会报各种各样的错误，基本上都是缺少编译环境问题。

下载相应的包，下载地址：ftp://mirror.switch.ch/mirror/centos/7/os/x86_64/Packages/（这个地址不一定能正常访问，推荐使用：http://www.rpmfind.net/linux/rpm2html/search.php，可以下载几乎所有的rpm包，只需要输入指定的关键字就可以了）

ctrl+f 搜索

安装：

make && make install

安装完成之后，会在/usr/local下面生成keepalived文件夹

[root@dcmp1 local]# ll
total 0
drwxr-xr-x. 2 root root 168 Jun 20 21:34 bin
drwxr-xr-x. 2 root root   6 Apr 11 12:59 etc
drwxr-xr-x. 2 root root   6 Apr 11 12:59 games
drwxr-xr-x. 3 root root  21 Jun 20 21:34 include
drwxr-xr-x. 6 root root  53 Aug 21 10:07 keepalived
drwxr-xr-x. 3 root root  85 Jun 20 21:34 lib
drwxr-xr-x. 2 root root   6 Apr 11 12:59 lib64
drwxr-xr-x. 2 root root   6 Apr 11 12:59 libexec
drwxr-xr-x. 2 root root 106 Jun 20 21:34 sbin
drwxr-xr-x. 6 root root  60 Jun 20 21:34 share
drwxr-xr-x. 2 root root   6 Apr 11 12:59 src

keepalived目录结构

[root@dcmp1 keepalived]# ll
total 0
drwxr-xr-x. 2 root root 21 Aug 21 10:07 bin
drwxr-xr-x. 4 root root 41 Aug 21 10:11 etc
drwxr-xr-x. 2 root root 24 Aug 21 10:07 sbin
drwxr-xr-x. 5 root root 40 Aug 21 10:07 share

[root@localhost ~]# cp /usr/local/keepalived/sbin/keepalived /etc/init.d/
[root@localhost ~]# cp /usr/local/keepalived/sbin/keepalived /etc/sysconfig/
[root@localhost ~]# cp /usr/local/keepalived/sbin/keepalived /usr/sbin/

编辑 master keepalived.conf

[root@localhost ~]# cat <<EOF > /usr/local/keepalived/etc/keepalived.conf
global_defs {
   router_id LVS_nginx
}

vrrp_script CheckNginxMaster {
    script "curl -k https://10.214.130.100:80"
    interval 3
    timeout 9
    fall 2
    rise 2
}

vrrp_instance VI_1 {
    state MASTER
    interface ens160
    virtual_router_id 61
    priority 100
    advert_int 1
    mcast_src_ip 10.214.130.100
    nopreempt
    authentication {
        auth_type PASS
        auth_pass sqP05dQgMSlzrxHj
    }
    unicast_peer {
        10.214.130.101
    }
    virtual_ipaddress {
        10.214.130.102/24
    }
    track_script {
        CheckNginxMaster
    }

}
EOF

slave keepalived.conf

​
[root@localhost ~]# cat <<EOF > /usr/local/keepalived/etc/keepalived.conf
global_defs {
   router_id LVS_nginx
}

vrrp_script CheckNginxMaster {
    script "curl -k https://10.214.130.101:80"
    interval 3
    timeout 9
    fall 2
    rise 2
}

vrrp_instance VI_1 {
    state BACKUP
    interface ens160
    virtual_router_id 61
    priority 50
    advert_int 1
    mcast_src_ip 10.214.130.101
    nopreempt
    authentication {
        auth_type PASS
        auth_pass sqP05dQgMSlzrxHj
    }
    unicast_peer {
        10.214.130.100
    }
    virtual_ipaddress {
        10.214.130.102/24
    }
    track_script {
        CheckNginxMaster
    }

}
EOF

​

priority 50  权重，值越大，权重越大，最大者成为master。

重启master和slave的keepalived服务

systemctl restart keepalived

在master和slave分别输入ip addr

看看网口上面绑定的ip。

关闭master的nginx，再观察slave情况。

10.214.130.102 ip已经飘向了101服务器。重启master的nginx，虚拟ip10.214.130.102飘向100.