搭建discuz论坛（lvs nginx http mysql nfs）8台服务器

2024-07-08

搭建discuz论坛（lvs nginx http mysql nfs）

一、IP规划

服务名	IP地址	服务
LVS1	192.168.100.110	keepalived ipvsadm
LVS2	192.168.100.111	keepalived ipvsadm
nginx1	192.168.100.113	nginx
nginx2	192.168.100.114	nginx
nfs	192.168.100.116	nfs-util
web1	192.168.100.118	httpd php nfs-util
web2	192.168.100.119	httpd php nfs-util
mysql	192.168.100.121	mysql

虚拟IP

服务名	IP地址	服务
虚拟ip	192.168.100.100	nginx keepalived

二、配置

1.LVS1

关闭防护墙，selinux

# 关闭防火墙
systemctl stop firewalld

# 关闭selinux
setenforce 0

设置ip：192.168.100.110

# 编辑网卡信息
vi /etc/sysconfig/network-scripts/ifcfg-ens33

# 修改
BOOTPROTO=static
ONBOOT=yes

# 写入
IPADDR=192.168.100.110
NETMASK=255.255.255.0
GATEWAY=192.168.100.2

下载keepalived和ipvsadm

yum -y install keepalived ipvsadm

备份默认配置文件

cp -p /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

删除原有文件，创建新内容

# 删除原有文件
rm -rf /etc/keepalived/keepalived.conf 

# 创建新文件
vi /etc/keepalived/keepalived.conf

添加以下内容

! Configuration File for keepalived

# 配置双机热备（主）
lobal_defs {
   router_id 1
}
vrrp_instance VI_1 {
    state MASTER
    interface ens33
    virtual_router_id 1
    priority 120
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 123456
    }
    virtual_ipaddress {
        192.168.100.100
    }
}

# 虚拟服务器ip及mysql地址
virtual_server 192.168.100.100 80 {
        delay_loop 15
        lb_algo rr
        lb_kind DR
        protocol TCP
        real_server 192.168.100.113 80 {
        weight 1
        TCP_CHECK {
                connect_port 80
                connect_timeout 3
                nb_get_retry 3
                delay_before_retry 4
                }
        }
        real_server 192.168.100.114 80 {
        weight 1
        TCP_CHECK {
                connect_port 80
                connect_timeout 3
                nb_get_retry 3
                delay_before_retry 4
                }
        }
}

启动keepalived

systemctl start keepalived

服务模块

# 加载系统内核的服务模块
modprobe ip_vs

# 查看运行状态
lsmod | grep ip_vs

下载net网络工具

yum -y install net-tools

查看网卡信息

# 停用物理网卡
ifconfig ens33 down

# 启动物理网卡（如在连接工具上，需到虚拟机上启动）
ifconfig ens33 up

# 查看网卡信息（在ens33网卡下是否有ip：192.168.100.100）
ip a

# 查看LVS-DR群集策略规则
ipvsadm -ln

LVS-DR群集策略

# 查看策略
ipvsadm -ln

2.LVS2

关闭防护墙，selinux

# 关闭防火墙
systemctl stop firewalld

# 关闭selinux
setenforce 0

设置ip：192.168.100.111

# 编辑网卡信息
vi /etc/sysconfig/network-scripts/ifcfg-ens33

# 修改
BOOTPROTO=static
ONBOOT=yes

# 写入
IPADDR=192.168.100.111
NETMASK=255.255.255.0
GATEWAY=192.168.100.2

下载keepalived和ipvsadm

yum -y install keepalived ipvsadm

备份默认配置文件

cp -p /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.bak

删除原有文件，创建新内容

# 删除原有文件
rm -rf /etc/keepalived/keepalived.conf 

# 创建新文件
vi /etc/keepalived/keepalived.conf

添加以下内容

! Configuration File for keepalived

# 配置双机热备（备）
lobal_defs {
   router_id 2
}
vrrp_instance VI_1 {
    state BACKUP
    interface ens33
    virtual_router_id 1
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 123456
    }
    virtual_ipaddress {
        192.168.100.100
    }
}

# 虚拟服务器ip及mysql地址
virtual_server 192.168.100.100 80 {
        delay_loop 15
        lb_algo rr
        lb_kind DR
        protocol TCP
        real_server 192.168.100.113 80 {
        weight 1
        TCP_CHECK {
                connect_port 80
                connect_timeout 3
                nb_get_retry 3
                delay_before_retry 4
                }
        }
        real_server 192.168.100.114 80 {
        weight 1
        TCP_CHECK {
                connect_port 80
                connect_timeout 3
                nb_get_retry 3
                delay_before_retry 4
                }
        }
}

启动keepalived

systemctl start keepalived

服务模块

# 加载系统内核的服务模块
modprobe ip_vs

# 查看运行状态
lsmod | grep ip_vs

下载net网络工具

yum -y install net-tools

查看网卡信息

# 停用物理网卡
ifconfig ens33 down

# 启动物理网卡（如在连接工具上，需到虚拟机上启动）
ifconfig ens33 up

# 查看网卡信息（在ens33网卡下是否有ip：192.168.100.100）
ip a

# 查看LVS-DR群集策略规则
ipvsadm -ln

LVS-DR群集策略

# 查看策略
ipvsadm -ln

3.nginx1

关闭防火墙，selinux

# 关闭防火墙
systemctl stop firewalld

# 关闭selinux
setenforce 0

设置ip：192.168.100.113

# 编辑网卡信息
vi /etc/sysconfig/network-scripts/ifcfg-ens33

# 修改
BOOTPROTO=static
ONBOOT=yes

# 写入
IPADDR=192.168.100.113
NETMASK=255.255.255.0
GATEWAY=192.168.100.2

下载nginx，keepalived环境

# 配置nginx下载源
cat

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