标签：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
[root@master ~] #tar xvf nginx-1.9.4.tar.gz -C /usr/local/src/ ; cd/usr/local/src/nginx-1.9.4
[root@master ~] #./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
[root@master ~] # make ; make install ; cd
[root@master ~] # useradd -M -u 8001 -s /sbin/nologin nginx
[root@master ~] # vim /usr/local/nginx/conf/nginx.conf
[root@master ~] #/usr/local/nginx/sbin/nginx
[root@master ~] #echo "/usr/local/nginx/sbin/nginx" >> /etc/rc.local
[root@master ~] #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。
[root@master ~] #/usr/local/nginx/sbin/nginx-t
[root@master ~] #/usr/local/nginx/sbin/nginx-s reload
（3）静态文件服务器配置
[root@webserver01~] # yum install -y httpd
[root@webserver01~] #echo"webserver01" > /var/www/html/index.html
[root@webserver02~] # yum install -y httpd
[root@webserver02~] #echo"webserver02" > /var/www/html/index.html
（4）动态文件服务器配置
[root@webserver03~] # yum install -y httpdphp
[root@webserver03~] # echo"webserver03 <?php phpinfo(); ?>" > /var/www/html/index.php
[root@webserver04~] # yum install -y httpdphp
[root@webserver04~] # 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;
}
标签：nginx 动静分离
原文地址：http://1011779.blog.51cto.com/1001779/1767525
