實現雙主模型NGINX架構
阿新 • • 發佈：2018-07-18
leg ive cast conf kill alt entos echo 權重 實驗拓撲圖
主節點配置
yum -y install nginx keepalived psmisc #修改keepalived配置文件 vim /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { notification_email { [email protected] [email protected] [email protected] } notification_email_from [email protected] smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS1 #用於標識本節點的名稱 vrrp_garp_interval 0 vrrp_gna_interval 0 vrrp_iptables #關閉防火墻功能 # vrrp_mcast_group4 224.0.0.18 } vrrp_script chk_down { #定義檢測資源 script "/bin/bash -c ‘[[ -f /etc/keepalived/down ]]‘ && exit 1 || exit 0" interval 1 #間隔檢測時間 weight -5 #檢測失敗後權重-5 } vrrp_script chk_nginx { #定義檢測資源 script "killall -0 nginx && exit 0 || exit 1" interval 1 #間隔檢測時間 weight -5 #檢測失敗後權重-5 } vrrp_instance VI_1 { state MASTER #定義狀態為主或從 interface ens34 #定義對外的網卡接口 virtual_router_id 88 #虛擬路由ID,相同的IP為一組 priority 100 #定義主節點的優先級 advert_int 1 authentication { #定義認證信息 auth_type PASS auth_pass rilegou } virtual_ipaddress { #定義虛擬IP(VIP) 172.20.29.111 } track_script { #調用定義的檢測資源腳本 chk_nginx chk_down } } vrrp_instance VI_2 { state BUCKUP interface ens34 virtual_router_id 99 priority 95 advert_int 1 authentication { auth_type PASS auth_pass centos } virtual_ipaddress { 172.20.29.114 } track_script { #調用定義的檢測資源腳本 chk_nginx chk_down } } #配置NGINX服務 vim /etc/nginx/conf.d/test.conf upstream websrvs { server 172.20.29.103:80; server 172.20.29.104:80; } server { listen 80 default_server; server_name node01.magedu.com; root /usr/share/nginx/html; location / { proxy_pass http://websrvs; } } #開啟服務 systemctl nginx keepalived
從節點配置
! Configuration File for keepalived global_defs { notification_email { [email protected] [email protected] [email protected] } notification_email_from [email protected] smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS2 #用於標識本節點的名稱 vrrp_garp_interval 0 vrrp_gna_interval 0 vrrp_iptables #關閉防火墻功能 # vrrp_mcast_group4 172.20.29.77 } vrrp_script chk_down { #定義檢測資源 script "/bin/bash -c ‘[[ -f /etc/keepalived/down ]]‘ && exit 1 || exit 0" interval 1 #間隔檢測時間 weight -5 #檢測失敗後權重-5 } vrrp_script chk_nginx { #定義檢測資源 script "killall -0 nginx && exit 0 || exit 1" interval 1 #間隔檢測時間 weight -5 #檢測失敗後權重-5 } vrrp_instance VI_1 { state BACKUP #定義狀態為主或從 interface ens34 #定義外對的網卡接口 virtual_router_id 88 #虛擬路由ID,相同的ID為一組 priority 98 #定義從服務器的優先級 advert_int 1 authentication { #認證信息 auth_type PASS auth_pass rilegou } virtual_ipaddress { #定義虛擬IP(VIP) 172.20.29.111 } track_script { #調用定義的檢測資源腳本 chk_nginx chk_down } } vrrp_instance VI_2 { state MASTER interface ens34 virtual_router_id 99 priority 96 advert_int 1 authentication { auth_type PASS auth_pass centos } virtual_ipaddress { 172.20.29.114 } track_script { #調用定義的檢測資源腳本 chk_nginx chk_down } } #配置NGINX服務 vim /etc/nginx/conf.d/test.conf upstream websrvs { server 172.20.29.103:80; server 172.20.29.104:80; } server { listen 80 default_server; server_name node01.magedu.com; root /usr/share/nginx/html; location / { proxy_pass http://websrvs; } } #開啟服務 systemctl nginx keepalived
web服務器配置
#配置httpd頁面 echo "<h1>`hostname`</h1>" > /var/www/html/index.html #添加VIP ip a a 172.20.29.111/32 dev lo #配置VIP不沖突 echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce #開啟服務 systemctl start httpd
實現雙主模型NGINX架構