nginx 动静分离实现负载均衡

# 定义Nginx运行的用户 和 用户组 如果对应服务器暴露在外面的话建议使用权限较小的用户 防止被入侵
# user www www;

#Nginx进程数, 建议设置为等于CPU总核心数
worker_processes 8;

#开启全局错误日志类型
error_log /var/log/nginx/error.log info;

#进程文件
pid /var/run/nginx.pid;

#一个Nginx进程打开的最多文件描述数目 建议与ulimit -n一致
#如果面对高并发时 注意修改该值 ulimit -n 还有部分系统参数 而并非这个单独确定
worker_rlimit_nofile 65535;

events{
#使用epoll模型提高性能
use epoll;
#单个进程最大连接数
worker_connections 65535;
}

http{
#扩展名与文件类型映射表
include mime.types;
#默认类型
default_type application/octet-stream;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
#日志
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
#gzip 压缩传输
gzip on;
gzip_min_length 1k;  #最小1K
gzip_buffers 16 64K;
gzip_http_version 1.1;
gzip_comp_level 6;
gzip_types text/plain application/x-javascript text/css application/xml application/javascript;
gzip_vary on;
#负载均衡组
#静态服务器组
upstream static.afanyun.com {
server 127.0.0.1:808 weight=1;
}
#动态服务器组
upstream afanyun.com {
server 127.0.0.1:8080;
#server 192.168.8.203:8080;
}
#配置代理参数
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 65;
proxy_send_timeout 65;
proxy_read_timeout 65;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
#缓存配置
proxy_cache_key '$host:$server_port$request_uri';
proxy_temp_file_write_size 64k;
proxy_temp_path /dev/shm/JieLiERP/proxy_temp_path;
proxy_cache_path /dev/shm/JieLiERP/proxy_cache_path levels=1:2 keys_zone=cache_one:200m inactive=5d max_size=1g;
proxy_ignore_headers X-Accel-Expires Expires Cache-Control Set-Cookie;

server{
listen 80;
server_name demo.afanyun.com;
location / {
index index; #默认主页为 /index
#proxy_pass http://afanyun; }
location ~ .*\.(js|css|ico|png|jpg|eot|svg|ttf|woff) {
proxy_cache cache_one;
proxy_cache_valid 200 304 302 5d;
proxy_cache_valid any 5d;
proxy_cache_key '$host:$server_port$request_uri';
add_header X-Cache '$upstream_cache_status from $host';
proxy_pass http://static.afanyun.com; #所有静态文件直接读取硬盘
#           root /var/lib/tomcat7/webapps/afanyun/WEB-INF ;
expires 30d; #缓存30天
}
#其他页面反向代理到tomcat容器
location ~ .*$ {
index index;
proxy_pass http://afanyun.com; }
}
server{
listen 808;
server_name static;
location / {

}
location ~ .*\.(js|css|ico|png|jpg|eot|svg|ttf|woff) {
#所有静态文件直接读取硬盘
root /var/lib/tomcat7/webapps/JieLiERP/WEB-INF ;
expires 30d; #缓存30天
}
}
}