實驗目的：

構建一個高可用的Nginx集群。

實驗要求：

1.基于nat結構實現;

2.實現高可用;

實驗拓撲圖形：

實驗步驟：

1.按圖配置各個網卡地址;

2.設置Nginx主機(下面帶#的部分為從所需要的配置，其他則一樣)

        Yum install httpd nginx    
        Vim /etc/httpd/conf/httpd.conf    
        Listen 80 àListen
8080    
        Vim /etc/nginx/nginx.conf    
        http{                  
upstream websrvs {                  
server 172.18.24.3:80;                  
server 172.18.24.5:80;                  
server 127.0.0.1:8080 backup;    
            }    
        }    
        vim /etc/nginx/conf.d/default.conf               
location / {                   
proxy_pass http://websrvs;    
        }    
        vim /etc/keepalived/keepalived.conf    
        global_defs {             
notification_email {                   
root@localhost    
           }              
notification_email_from keeplived@localhost             
smtp_server 127.0.0.1              
smtp_connect_timeout 30             
router_id tes1t             
vrrp_mcast_group4 224.0.100.24    
        }    
        vrrp_script ‘ngxstatus’ {                  
script “killall -0 nginx && exit 0 || exit 1”                 
interval 1                  
weight -5    
        }    
        vrrp_instance myr1 {               
state MASTER                
#BACKUP             
interface eth0                
#ens38              
virtual_router_id 67               
priority 100                   #98              
advert_int 1             
authentication {                 
auth_type PASS                
auth_pass UIpYPPDI    
            }               
track_script {                  
 ngxstatus    
            }               
virtual_ipaddress {                  
172.18.24.13/16 dev eth0       
#ens38    
            }              
notify_master “/etc/keepalived/notify.sh master”               
notify_backup “/etc/keepalived/notify.sh backup”              
notify_fault “/etc/keepalived/notify.sh fault”    
        }    
        Systemctl start httpd    
        Systemctl start nginx    
        Systemctl start keepalived    

3.配置RS主機

Yum install httpd

Vim /var/www/html/index.html

4.檢測：curl http://172.18.24.13

檢測結果：實現高可用Nginx集群。

如果您想了解更相關知識，不妨來關注一下動力節點的Java在線學習，里面的課程內容全面細致，從入門到精通，很適合沒有基礎的小伙伴學習，相信對大家會有所幫助的。