使用nginx配置负载均衡

Celandine ·

更新时间:2024-11-14

· 624 次阅读

文章目录1.下载nginx2.配置负载均衡3.配置双主热备 1.下载nginx

准备环境

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

准备nginx：
下载：# wget http://nginx.org/download/nginx-1.8.1.tar.gz
解压：# tar -zxvf nginx-1.8.1.tar.gz
进入目录：# cd nginx-1.8.1

配置nginx：# ./configure --prefix=/usr/src/nginx --with-http_stub_status_module --with-http_ssl_module

编译安装：# make && make install

查看nginx版本：
进入安装目录：# cd /usr/src/nginx/sbin
查看版本：# ./nginx -v

设置开机启动
编辑/etc/rc.local：# vim /etc/rc.local
添加一行：/usr/src/nginx/sbin/nginx，之后，开机会自动启动nginx

nginx 命令
进入nginx目录：# cd /usr/src/nginx/sbin
启动服务：# ./nginx
停止服务：# ./nginx -s stop
重启服务：# ./nginx -s reopen
重新载入配置文件：# ./nginx -s reload

2.配置负载均衡


#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;
    #gzip  on;
	upstream minio{
	        server 172.28.8.65:9000;
	        server 172.28.8.61:9000;
	        server 172.28.8.62:9000;
	        server 172.28.8.63:9000;
	}
    server {
        listen 9001;
        server_name 172.28.8.111;
        location / {
                proxy_pass http://minio;
                proxy_set_header Host $http_host;
                client_max_body_size 1000m;
        }
	}
}

3.配置双主热备

! Configuration File for keepalived
global_defs {
   notification_email {
     guchang.pan@hand-china.com
     2660292608@qq.com
   }
   notification_email_from guchang.pan@hand-china.com
   smtp_server 127.0.0.1
   smtp_connect_timeout 30
   router_id MYCAT_HA
}
vrrp_instance VI_1 {
    state MASTER
    interface ens192
    virtual_router_id 52   #路由器标识，MASTER和BACKUP必须是一致的
    priority 101           #定义优先级，数字越大，优先级越高，在同一个vrrp_instance下，MASTER的优先级必须大于BACKUP的优先级。这样MASTER故障恢复后，就可以将VIP资源再次抢回来 
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        172.28.8.111/24
    }
}
virtual_server 172.28.8.111 80 {
    delay_loop 6
    protocol TCP
    real_server 172.28.8.65 80 {
        notify_down "kill -9 $(cat /var/run/keepalived.pid)" 
        TCP_CHECK { 
            connect_port 80  
            connect_timeout 3  
            nb_get_retry 3  
            delay_before_retry 3  
        }
    }
}