nginx+consul+upsync实现动态负载均衡

一:下载nginx和upsync,并编译nginx(添加upsync模块)

1.安装所需依赖:

//一键安装上面四个依赖
yum -y install gcc zlib zlib-devel pcre-devel openssl openssl-devel

2. 切换到安装目录:
 cd  /usr/local

3.下载nginx安装包:

wget http://nginx.org/download/nginx-1.16.1.tar.gz

 

5.下载upsync并编写安装nginx:

tar  zxvf  nginx-1.16.1.tar.gz   //解压

mv nginx-1.16.1 nginx     //重命名


cd nginx

wget https://github.com/weibocom/nginx-upsync-module/archive/master.zip

yum -y install unzip    下载解压zip文件的依赖


//开始编译    /usr/local/nginx/nginx-upsync-module-master为upsync的路径
./configure --add-module=/usr/local/nginx/nginx-upsync-module-master 

make 

make  install

 

 

6.修改nginx.conf文件的配置,具体配置如下:


#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


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;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;
	
	
	
	 upstream test{
        server 127.0.0.1:11111;  #consul中固定的不用修改
        
         #62.234.109.11 counsul所在服务器地址   
         #test 分组的名字
        upsync 62.234.109.11:8500/v1/kv/upstreams/test upsync_timeout=6m upsync_interval=500ms upsync_type=consul strong_dependency=off;
        upsync_dump_path /usr/local/nginx/servers/servers_test.conf;
    }

    server {
        listen       80;
        server_name  localhost;
        location / {
          proxy_pass  http://test;
		  
          proxy_connect_timeout 3s; #nginx连接超时时间

          proxy_send_timeout 3s;    #nginx发送给上游服务器(真实访问的服务器)超时时间

          proxy_read_timeout 3s;    #nginx接受上游服务器(真实访问的服务器)超时时间
		  
          index  index.html index.htm;
        }

     
    }





}

7.新建放upsync_dump的文件目录:

mkdir   /usr/local/nginx/servers   (路径在nginx.conf中配置)

 

二:下载consul

1.下载解压consul

  cd /usr/local

  wget https://releases.hashicorp.com/consul/1.4.0/consul_1.4.0_linux_amd64.zip

 unzip consul_1.4.0_linux_amd64.zip

 

2.运行consul

./consul

./consul agent -dev -ui -node=consul-dev -client=服务器内网ip

 

三:利用postman发送请求添加反向代理的ip地址:

http://62.234.109.11:8500/v1/kv/upstreams/test/39.108.107.163:8080   添加一个真实的服务器地址

192.168.212.134 :consul服务器地址           39.108.107.163 :真实服务器地址        test:分组名(在nginx.conf中配置过)

 

http://62.234.109.11:8500/v1/kv/upstreams/test/49.233.66.116:8080  再添加一个做负载均衡

 

在consul页面的 key/value里查看

 

nginx+consul+upsync实现动态负载均衡_第1张图片

 

负载均衡信息参数

{"weight":1, "max_fails":2, "fail_timeout":10, "down":0}

 

这是就可以直接访问部署nginx的ip地址查看反向代理,负载均衡的效果。

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