搭建MQTT服务[二]

安装NGINX

系统平台：CentOS 7

1、首先安装必要的库（nginx 中gzip模块需要 zlib 库，rewrite模块需要 pcre 库，ssl 功能需要openssl库）,

yum install -y pcre zlib gcc make gcc-c++ openssl-devel

2.nginx的安装

• 下载安装包

wget http://nginx.org/download/nginx-1.8.0.tar.gz

• 解压安装包

tar -zxvf nginx-1.8.0.tar.gz

• 编译安装

cd nginx-1.8.0
./configure --user=nobody --group=nobody --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_gzip_static_module --with-http_realip_module --with-http_sub_module --with-http_ssl_module
make && make install

注意：安装NGINX，编译过程中开启 --with-stream,tcp转发必须模块

(2) 配置NGINX负载均衡:让所有EMQ节点共用一个入口.即使EMQ有节点无法工作,nginx反向代理的地址依然能正常工作

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    keepalive_timeout  65;
    upstream dc.ss.com
    {
      server 192.168.12.2:18883;
      server 192.168.12.3:18883;
    }
    server {
        listen       80;
        server_name  dc.ss.com;
        location / {
           proxy_pass http://dc.ss.com;
        }
    }
}

stream{
	upstream emqt_cluster  
	{
              zone tcp_servers 64k;
		hash $remote_addr;
		server 192.168.12.2:1883 max_fails=2 fail_timeout=30s;
		server 192.168.12.3:1883 max_fails=2 fail_timeout=30s;
	}
	server
	{
		listen  1883;
		proxy_pass emqt_cluster;
	}
 }

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