HA+LVS+负载均衡

公司发展的需求，先在本地做测试，把测试步骤贴出来。

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环境说明：

VirtualBOX
ubuntu-real1 192.168.1.201

ubuntu-real2 192.168.1.202

Centos 192.168.1.202

VIP 192.168.1.200

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# 安装Ubuntu 10 Server Centos

# 克隆Ubuntu ubuntu-real1 ---ubuntu-real2

# 克隆完后会出现网络无法启动

sudo mv /etc/udev/rules.d/70-persistent-net.rules /etc/udev/rules.d/70-persistent-net.rules.old

Reboot

#设置静态IP

vim /etc/network/interfaces
auto eth0
iface eth0 inet static
address 192.168.1.201
netmask 255.255.255.0
gateway 192.168.1.1

/etc/init.d/networking restart

#结束个用户

pkill -9 -t pts/0

# 更换源（不一定需要操作）

apt-key adv --keyserver keyserver.Ubuntu.com --recv-keys C300EE8C
echo "deb http://ppa.launchpad.net/nginx/stable/ubuntu lucid main" >> /etc/apt/sources.list
apt-get update

# 源安装

apt-get install ipvsadm keepalived

cd /etc/keepalived

vim keepalived.conf

---------------Master配置----------------

global_defs {
   notification_email {
     zhanhai@foxmail.com
   }
   notification_email_from zhanhai123@foxmail.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
vrrp_instance VI_1 {
    state MASTER    # keepalived2 机器为 BAUCK
    interface eth0
    virtual_router_id 50   #VRID标示
    priority 102        # 优先级
    advert_int 1        #检测间隔
    authentication {
        auth_type PASS
        auth_pass 1987
    }
    virtual_ipaddress {
       192.168.1.200
    }
}
virtual_server 192.168.1.200 80 {
    delay_loop 10   #每10秒检测次RealServer
    lb_algo rr      #轮训 rr|wrr|lc|lblc|sh|dh
    lb_kind DR      ##lvs使用Direct Route NAT|DR|TUN
    persistence_timeout 50   # 默认50秒钟都访问同一台机器(会话保持)
    protocol TCP

real_server 192.168.1.201 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }
    real_server 192.168.1.202 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }

    real_server 192.168.1.203 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }

}
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/etc/init.d/keepalived start

# 查看状态

ip a

---------------BACKUP配置----------------

global_defs {
   notification_email {
     zhanhai@foxmail.com
   }
   notification_email_from zhanhai123@foxmail.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}
vrrp_instance VI_1 {
    state BACKUP     # BACKUP
    interface eth0
    virtual_router_id 50   #VRID标示
    priority 101        # 优先级
    advert_int 1        #检测间隔
    authentication {
        auth_type PASS
        auth_pass 1987
    }
    virtual_ipaddress {
       192.168.1.200
    }
}
virtual_server 192.168.1.200 80 {
    delay_loop 10   #每10秒检测次RealServer
    lb_algo rr      #轮训 rr|wrr|lc|lblc|sh|dh
    lb_kind DR      ##lvs使用Direct Route NAT|DR|TUN
    persistence_timeout 50   # 默认50秒钟都访问同一台机器(会话保持)
    protocol TCP

real_server 192.168.1.201 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }
    real_server 192.168.1.202 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }

    real_server 192.168.1.203 80 {
        weight 1
        TCP_CHECK {
        connect_port 80
        connect_timeout 30
        }
    }

}
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ifconfig eth0 down /ifconfig eth0 up

查看ip a

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