nginx 动静分离

  网站架构图

      环境说明：
      nginx master：192.168.232.18/24         （Centos7）
      nginx backup：192.168.232.19/24（Centos7）
      webserver01（动态）：192.168.232.30/24（Centos7）
      webserver02（动态）：192.168.232.31/24（Centos7）
      webserver03（静态）：192.168.232.6/24（Centos6.7）
      webserver04（静态）：192.168.232.254/24（Centos6.7）
      如上图，nginx将访问php等动态页面的请求交给动态页面服务器；将访问html等静态页面的请求交给静态页面服务器。
      安装步骤

      （1）  安装Keepalived
      a）  master配置
      安装依赖：
      # 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实例定义
      stateMASTER                            #实例初始化状态，还可以是master!
      nopreempt                               #不抢占，用于state 状态中，而且优先级要高于第二个backup
      interface eth0                         #实例绑定的网卡
      #track_interface{            #设定额外监控的网卡，以下任意网卡故障，状态fault
      #eth0
      #eth1
      #}
      virtual_router_id51                    #虚拟路由id（0-255）
      priority100                            #优先级，高优先级的将竞选为MASTER
      advert_int1                            #检查间隔，默认1s
      authentication {
      auth_typePASS                          #认证方式，pass
      auth_passVI_1                          #认证密码
      }
      virtual_ipaddress{                     #虚拟ip地址(vip 可以为多个)
      192.168.232.20/24eth0 cope global     #虚拟ip地址绑定在 eth0 网卡
      }
      }
      b）  backup配置
      keepalived安装方式同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）安装nginx
      解决pcre依赖

      # tar xvf pcre-8.37.tar.bz2-C /usr/local/src/
      编译安装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 {             #定义负载均衡服务器组名称
      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;
      }
      }
      以上安装nginx步骤在master和backup上相同
      测试配置文件有无错误，如果测试通过再重新加载配置文件。
      [[email protected] ~] #/usr/local/nginx/sbin/nginx-t  
      [[email protected] ~] #/usr/local/nginx/sbin/nginx-s reload
      （3）静态文件服务器配置
      [[email protected]~] # yum install -y httpd
      [[email protected]~] #echo"webserver01" > /var/www/html/index.html
      [[email protected]~] # yum install -y httpd
      [[email protected]~] #echo"webserver02" > /var/www/html/index.html
      （4）动态文件服务器配置
      [[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
      以上是动静分离实验的相关配置。
      （5）动静分离的写法样本
      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动静分离
      标签：nginx 动静分离
      原文地址：http://1011779.blog.51cto.com/1001779/1767525