linux下nginx负载均衡配置

参考：阿里云负载均衡怎么配置 https://yq.aliyun.com/articles/697165

# 配置 /usr/local/nginx/conf/nginx.conf


#user nobody;

worker_processes 4;

#error_log logs/error.log;

#error_log logs/error.log notice;

#error_log logs/error.log info;

#pid logs/nginx.pid;


events {

use epoll;

worker_connections 10240;

}


http {

include mime.types;

default_type application/octet-stream;


#log_format main '$remote_addr - $remote_user [$time_local] "$request" '

# '$status $body_bytes_sent "$http_referer" '

# '"$http_user_agent" "$http_x_forwarded_for"';


#access_log logs/access.log main;


sendfile on;

client_max_body_size 10m;


gzip on;

#gzip_comp_level 4;

gzip_proxied any;

gzip_types text/plain text/css application/x-javascript application/javascript text/javascript application/json;


#gzip_disable "MSIE [1-6]\.";

#tcp_nopush on;


#keepalive_timeout 0;

keepalive_timeout 65;

server_tokens off;


proxy_cache_path cache levels=1:2 keys_zone=redmine:100m inactive=2m max_size=1g;


server {

listen 3000;

server_name localhost;


#charset utf-8;


#access_log logs/host.access.log main;

access_log off;


location / {

proxy_cache redmine;

proxy_cache_valid 200 304 1m;


proxy_pass http://backend;

root html;

index index.html index.htm;

rewrite /download http://g.cn permanent;

}


#error_page 404 /404.html;


# redirect server error pages to the static page /50x.html

#

error_page 500 502 503 504 /50x.html;

location = /50x.html {

root html;

}


# proxy the PHP scripts to Apache listening on 127.0.0.1:80

#

#location ~ \.php$ {

# proxy_pass http://127.0.0.1;

#}


# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000

#

#location ~ \.php$ {

# root html;

# fastcgi_pass 127.0.0.1:9000;

# fastcgi_index index.php;

# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;

# include fastcgi_params;

#}


# deny access to .htaccess files, if Apache's document root

# concurs with nginx's one

#

#location ~ /\.ht {

# deny all;

#}

}


upstream backend {

ip_hash;

server 127.0.0.1:3001 weight=4;

server 127.0.0.1:3002 weight=6;

}

}