nginx動靜分離

標籤：nginx 動靜分離

• 網站架構圖

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環境說明：

nginx master：192.168.232.18/24         （Centos7）

nginx backup：192.168.232.19/24（Centos7）

 

webserver01（動態）：192.168.232.30/24（Centos7）

webserver02（動態）：192.168.232.31/24（Centos7）

 

webserver03（靜態）：192.168.232.6/24（Centos6.7）

webserver04（靜態）：192.168.232.254/24（Centos6.7）

如，nginx將訪問php等動態網頁面的請求交給動態網頁面伺服器；將訪問html等靜態頁面的請求交給靜態頁面伺服器。

• 安裝步驟

（1）  安裝Keepalived

a）  master配置

安裝依賴：

# yum installgcc gcc-c++ autoconf automake -y

# yum install zlibzlib-devel openssl openssl-devel -y

# tar xvf  keepalived-1.2.20.tar.gz -C /usr/local/src ;cd /usr/local/src/keepalived-1.2.20

# ./configure--prefix=/usr/local/keepalived

#make &&make install

#ln -s/usr/local/keepalived/sbin/keepalived /sbin/

# ln -s/usr/local/keepalived/bin/genhash /bin/

# ln -s /usr/local/keepalived/etc/sysconfig/keepalived/etc/sysconfig/keepalived

# mkdir /etc/keepalived/

# cp/usr/local/keepalived/etc/keepalived/keepalived.conf /etc/keepalived/  

# cp/usr/local/keepalived/etc/rc.d/init.d/keepalived  /etc/init.d/

# servicekeepalived start

# chkconfigkeepalived on

 

#vim /etc/keepalived/keepalived.conf

 

vrrp_instanceVI_1 {                    #vrrp執行個體定義

stateMASTER                            #執行個體初始化狀態，還可以是master!

nopreempt                               #不搶佔，用於state 狀態中，而且優先順序要高於第二個backup

interface eth0                         #執行個體綁定的網卡

 

#track_interface{            #設定額外監控的網卡，以下任意網卡故障，狀態fault

#eth0

#eth1

#}

 

virtual_router_id51                    #虛擬路由id（0-255）

priority100                            #優先順序，高優先順序的將競選為MASTER

advert_int1                            #檢查間隔，預設1s

 

authentication {

auth_typePASS                          #認證方式，pass

auth_passVI_1                          #認證密碼

}

 

 

virtual_ipaddress{                     #虛擬ip地址(vip 可以為多個)

192.168.232.20/24eth0 cope global     #虛擬ip地址 綁定在 eth0 網卡

}

 

}

 

 

 

b）  backup配置

keepalived安裝方式同master

#vim /etc/keepalived/keepalived.conf

 

 

vrrp_instanceVI_1

state BACKUP

#nopreempt

interface eth0

 

#track_interface{

#eth0

#eth1

#}

 

virtual_router_id51

priority 50

advert_int 1

 

authentication {

auth_type PASS

auth_pass VI_1

}

 

 

virtual_ipaddress{

192.168.232.20/24eth0 cope global

}

 

}

        

（2）安裝nginx

1. 解決pcre依賴

# tar xvf pcre-8.37.tar.bz2-C /usr/local/src/

1. 編譯安裝nginx

[[email protected] ~] #tar xvf nginx-1.9.4.tar.gz -C  /usr/local/src/ ; cd/usr/local/src/nginx-1.9.4

[[email protected] ~] #./configure --prefix=/usr/local/nginx--with-http_dav_module --with-http_stub_status_module --with-http_addition_module--with-http_sub_module --with-http_flv_module --with-http_mp4_module--with-pcre=/usr/local/src/pcre-8.37

[[email protected] ~] # make ; make install ; cd

[[email protected] ~] # useradd -M -u 8001 -s /sbin/nologin nginx

[[email protected] ~] # vim /usr/local/nginx/conf/nginx.conf

      

[[email protected] ~] #/usr/local/nginx/sbin/nginx

[[email protected] ~] #echo "/usr/local/nginx/sbin/nginx" >> /etc/rc.local

 

[[email protected] ~] #vim/usr/local/nginx/conf/nginx.conf

user nginx nginx;

worker_processes  auto;

 

events {

   worker_connections  65000;

}

 

http {

   include       mime.types;

   default_type application/octet-stream;

 

   sendfile        on;

 

   keepalive_timeout  65;

 

   server {

       listen       80;

       server_name  localhost;

 

        location / {

           root   html;

           index  index.html index.htm;

          

             if ($request_uri  ~*  \.(php|jsp)$){

                   proxy_pass http://phpservers;

             }

 

                   if($request_uri  ~*  \.(htm|html|shtml)$){

                   proxy_pass http://htmlservers;

             }

 

       }

 

       error_page   500 502 503 504  /50x.html;

       location = /50x.html {

           root   html;

       }

 

    }

 

 

   upstream htmlservers {             #定義負載平衡伺服器組名稱

       server 192.168.232.254:80;

                   server192.168.232.6:80;

    }  

   upstream phpservers {

       server 192.168.232.30:80;

       server 192.168.232.31:80;

    }

}

 

以上安裝nginx步驟在master和backup上相同

 

測試組態檔案有無錯誤，如果測試通過再重新載入設定檔。

[[email protected] ~] #/usr/local/nginx/sbin/nginx-t  

[[email protected] ~] #/usr/local/nginx/sbin/nginx-s reload

 

 

（3）靜態檔案伺服器配置

 

[[email protected]~] # yum install -y httpd

[[email protected]er01~] #echo"webserver01" > /var/www/html/index.html

 

[[email protected]~] # yum install -y httpd

[[email protected]~] #echo"webserver02" > /var/www/html/index.html

 

 

（4）動態檔案伺服器配置

 

[[email protected]~] # yum install -y httpdphp

[[email protected]~] # echo"webserver03 <?php phpinfo(); ?>" > /var/www/html/index.php

 

 

[[email protected]~] # yum install -y httpdphp

[[email protected]~] # echo "webserver04<?php phpinfo(); ?>" > /var/www/html/index.php

 

以上是動靜分離實驗的相關配置。

 

（5）動靜分離的寫法樣本

if ($request_uri ~*\.(html|gif|jpg|jpeg|ico|swf|htm|xml)$){

  proxy_pass http://squid_servers;

   }

if ($request_uri ~* \.(php|phps)$){

  proxy_pass http://apache_servers;

   }

if ($request_uri ~* \.(jsp|do)$){

  proxy_pass http://tomcat_servers;

   }

  proxy_pass http://localhost;

}

 

upstream tomcat_servers { s

    server  192.168.1.2:8080; 

    server  192.168.1.1:8080; 

    server  192.168.1.11:8080;

    }

upstream apache_servers {

   server  192.168.1.5:80; 

   server  192.168.1.177:80; 

   server  192.168.1.15:80;

    }

upstream squid_servers {

   server  192.168.1.26:3128; 

   server  192.168.1.55:3128; 

   server  192.168.1.18:3128;

}

nginx動靜分離