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Nginx动静分离经典案例配置

2016-03-22 17:18 816 查看
随着Nginx高性能Web服务器大量被使用,目前Nginx最新稳定版为1.2.6,张宴兄在实际应用中大量使用Nginx,并分享Nginx高性能Web服务器知识,使得Nginx在国内也是飞速的发展。那今天咱们再来温习一下Nginx 动静分离知识,这里仅供参考。

一、实践环境:

系统版本:CentOS6.0 X86_64

Nginx版本:Nginx-1.2.6

Tomcat版本:Tomcat-6.0.18

二、Nginx安装:

实际环境中安装Nginx,首先需要安装pcre库,然后再安装Nginx:

#安装pcre支持rewrite库,也可以安装源码,注*安装源码时,指定pcre路径为解压源码的路径,而不是编译后的路径,否则会报错。
yum install pcre-devel pcre -y

#下载Nginx源码包
cd /usr/src ;wget -c http://nginx.org/download/nginx-1.2.6.tar.gz
#解压Nginx源码包
tar -xzf nginx-1.2.6.tar.gz

#进入解压目录,然后sed修改Nginx版本信息为TDTWS
cd nginx-1.2.6 ; sed -i -e 's/1.2.6//g' -e
's/nginx\//TDTWS/g' -e 's/"NGINX"/"TDTWS"/g' src/core/nginx.h

#预编译Nginx
./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module
#.configure预编译成功后,执行make命令进行编译

make
#make执行成功后,执行make install 正式安装
make install
#自此Nginx安装完毕!!!

三、配置Nginx:

这里鉴于我的51CTO博客已经有Tomcat安装和配置了,这里忽略,只配置Nginx。

#进入Nginx应用目录

cd /usr/local/nginx/conf
#备份原nginx.conf文件
mv nginx.conf nginx.bak

创建 vi nginx.conf ,并写入如下内容:

user www www;
worker_processes 8;
worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;

pid /usr/local/nginx/nginx.pid;

worker_rlimit_nofile 102400;

events
{
use epoll;
worker_connections 102400;
}
http
{
include mime.types;

default_type application/octet-stream;

fastcgi_intercept_errors on;

charset utf-8;

server_names_hash_bucket_size 128;
client_header_buffer_size 4k;
large_client_header_buffers 4 32k;
client_max_body_size 300m;

sendfile on;
tcp_nopush on;

keepalive_timeout 60;

tcp_nodelay on;

client_body_buffer_size 512k;
proxy_connect_timeout 5;
proxy_read_timeout 60;
proxy_send_timeout 5;
proxy_buffer_size 16k;
proxy_buffers 4 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;

gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.1;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;

gzip_vary on;

###2012-12-19 change nginx logs

log_format main '$http_x_forwarded_for - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" $request_time $remote_addr';

#这里为后端服务器wugk应用集群配置,根据后端实际情况修改即可,tdt_wugk为负载均衡名称,可以任意指定
#但必须跟vhosts.conf虚拟主机的pass段一致,否则不能转发后端的请求。

upstream tdt_wugk {
server 10.10.141.30:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.30:8081 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.31:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.31:8081 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.32:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.32:8081 weight=1max_fails=2fail_timeout=30s;

}
#这里为后端APP应用负载均衡配置,根据后端实际情况修改即可。tdt_app为负载均衡名称,可以任意指定

upstream tdt_app {
server 10.10.141.40:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.40:8081 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.41:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.41:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.44:8080 weight=1max_fails=2fail_timeout=30s;

server 10.10.141.45:8080 weight=1max_fails=2fail_timeout=30s;

}
#include引用vhosts.conf,该文件主要用于配置Nginx 虚拟主机
include vhosts.conf;
}

如上nginx.conf配置完毕,继续配置nginx虚拟主机,继续在当前目录创建vhosts.conf

vi vhosts.conf 内容如下:

####www.wuguangke.cn
server

{
listen 80;
server_name www.wuguangke.cn;
index index.html index.htm;
#配置发布目录为/data/www/wugk
root /data/www/wugk;

location /
{
proxy_next_upstream http_502 http_504 error timeout invalid_header;

proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://tdt_wugk; expires 3d;
}
#动态页面交给http://tdt_wugk,也即我们之前在nginx.conf定义的upstream tdt_wugk 均衡

location ~ .*\.(php|jsp|cgi)?$
{
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_pass http://tdt_wugk; }
#配置Nginx动静分离,定义的静态页面直接从Nginx发布目录读取。
location ~ .*\.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css)$

{
root /data/www/wugk;
#expires定义用户浏览器缓存的时间为3天,如果静态页面不常更新,可以设置更长,这样可以节省带宽和缓解服务器的压力
expires 3d;
}
#定义Nginx输出日志的路径
access_log /data/logs/nginx_wugk/access.log main;
error_log /data/logs/nginx_wugk/error.log crit;
}

##########chinaapp.sinaapp.com 2012-12-19
server

{
listen 80;
server_name chinaapp.sinaapp.com;
index index.html index.htm;
root /data/www;

location /
{
proxy_next_upstream http_502 http_504 error timeout invalid_header;

proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://tdt_app; expires 3d;
}

location ~ .*\.(php|jsp|cgi)?$
{
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_pass http://tdt_app; }
location ~ .*\.(html|htm|gif|jpg|jpeg|bmp|png|ico|txt|js|css)$
{
root /data/www/app;
expires 3d;
}

access_log /data/logs/nginx_app/access.log main;
error_log /data/logs/nginx_app/error.log crit;
}

四、部署测试:

后端配置好Tomcat服务,并启动,发布的程序需同步到Nginx的/data/www对应的目录,因为配置动静分离后,用户请求你定义的静态页面,默认会去nginx的发布目录请求,而不会到后端请求,所以这时候你要保证后端跟前端的程序保持一致,可以使用Rsync做服务端自动同步。

#检查Nginx配置文件是否配置正确,提示Ok and successful表示正确,如下:
[root@WEB-11-151 ~]# /usr/local/nginx/sbin/nginx -t

nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok

nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
#启动Nginx服务
/usr/local/nginx/sbin/nginx
#查看Nginx进程是否启动
ps -ef |grep nginx

本文只是一个简单的实际案例,里面的配置和参数这里没有做过多的说明,后期会继续更新
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