PHP网站集群是一种常见的网站部署方式，可以提高网站的访问速度和稳定性。以下是一个实例，展示了如何配置一个PHP网站集群。
| 配置项 | 说明 |
|---|---|
| 服务器数量 | 根据需求配置，例如2台服务器 |
| 操作系统 | 建议：Linux系统，如CentOS7 |
| PHP版本 | 建议：PHP7.4 |
| Web服务器 | 建议：Nginx |
| 数据库服务器 | 建议：MySQL5.7 |
| 集群软件 | 建议：Keepalived+LVS |
| 负载均衡 | 建议：使用Nginx作为负载均衡器 |
1. 服务器配置
| 服务器 | IP地址 | 主机名 |
|---|---|---|
| 服务器1 | 192.168.1.100 | web1 |
| 服务器2 | 192.168.1.101 | web2 |
2. 安装软件
服务器1
```bash
安装Nginx
yum install -y nginx
安装PHP
yum install -y php php-fpm
安装MySQL
yum install -y mariadb-server
启动并使能相关服务
systemctl start nginx
systemctl start php-fpm
systemctl start mariadb
systemctl enable nginx
systemctl enable php-fpm
systemctl enable mariadb
```
服务器2
```bash
安装Nginx
yum install -y nginx
安装PHP
yum install -y php php-fpm
安装MySQL
yum install -y mariadb-server
启动并使能相关服务
systemctl start nginx
systemctl start php-fpm
systemctl start mariadb
systemctl enable nginx
systemctl enable php-fpm
systemctl enable mariadb
```
3. 配置Nginx
在服务器1和服务器2上配置Nginx，设置虚拟主机。
```nginx
server {
listen 80;
server_name example.com;
location / {
root /usr/share/nginx/html;
index index.php index.html index.htm;
try_files $uri $uri/ /index.php?$query_string;
}
location ~ "".php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
```
4. 配置Keepalived + LVS
在服务器1和服务器2上配置Keepalived和LVS，实现负载均衡。
服务器1
```bash
安装Keepalived和LVS
yum install -y keepalived ipvsadm
配置Keepalived
cat > /etc/keepalived/keepalived.conf < ! Configuration File for keepalived global_defs { router_id LVS_DEVEL } vrrp_instance VI_1 { state MASTER interface eth0 virtual_rtr_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 192.168.1.200 } } virtual_server 192.168.1.200 80 { delay_loop 6 lb_method roundrobin pinger 192.168.1.200 pinger_interval 2 pinger_timeout 1 pinger_retries 3 server 192.168.1.100 80 server 192.168.1.101 80 } EOF 启动Keepalived systemctl start keepalived systemctl enable keepalived ``` ```bash 安装Keepalived和LVS yum install -y keepalived ipvsadm 配置Keepalived cat > /etc/keepalived/keepalived.conf < ! Configuration File for keepalived global_defs { router_id LVS_DEVEL } vrrp_instance VI_1 { state BACKUP interface eth0 virtual_rtr_id 51 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 123456 } virtual_ipaddress { 192.168.1.200 } } virtual_server 192.168.1.200 80 { delay_loop 6 lb_method roundrobin pinger 192.168.1.200 pinger_interval 2 pinger_timeout 1 pinger_retries 3 server 192.168.1.100 80 server 192.168.1.101 80 } EOF 启动Keepalived systemctl start keepalived systemctl enable keepalived ``` 在浏览器中输入服务器1或服务器2的IP地址，例如：192.168.1.100，访问网站。此时，访问请求会通过Nginx负载均衡到服务器1或服务器2。 通过以上步骤，您已经成功配置了一个PHP网站集群。在实际部署过程中，可以根据需求进行调整和优化。 服务器2
5. 测试集群
