(负载均衡)nginx+keepalive

来源：互联网发布：手机上编程软件编辑：程序博客网时间：2024/06/01 09:52

yum -y install gcc pcre-devel zlib-devel openssl-devel popt-develwget http://nginx.org/download/nginx-1.8.0.tar.gz wget http://www.keepalived.org/software/keepalived-1.2.19.tar.gztar zxvf keepalived-1.2.19.tar.gzcd keepalived-1.2.19./configure --prefix=/usr/localmake&&make installcp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/mkdir /etc/keepalivedcp /usr/local/etc/keepalived/keepalived.conf /etc/keepalived/cp /usr/local/sbin/keepalived /usr/sbin/echo "/usr/local/nginx/sbin/nginx" >> /etc/rc.localecho "/etc/init.d/keepalived start" >> /etc/rc.local

Nginx配置文件

http {    upstream imgserver{        ip_hash;        server 183.131.54.25:80 weight=1 max_fails=2 fail_timeout=3;        server 183.131.54.26:80 weight=1 max_fails=2 fail_timeout=3;    }    server {        location /        {           proxy_pass http://imgserver;        }    }}

keepalived配置文件

yum -y install nmapvi /opt/chk_nginx.sh

#!/bin/bash# check nginx server statusNGINX=/usr/local/nginx/sbin/nginxPORT=80#echo 'date' >> 1.txtnmap localhost -p $PORT | grep "$PORT/tcp open"#echo $?if [ $? -ne 0 ];then    $NGINX -s stop    $NGINX    sleep 3    nmap localhost -p $PORT | grep "$PORT/tcp open"    [ $? -ne 0 ] && /etc/init.d/keepalived stopfi

vi /etc/keepalived/keepalived.conf主服务器配置完后运行service keepalived start开启主查看ip addr是否绑定主服务器是否接管 service keepalived status查看是否运行 service keepalived stop关闭主查看ip addr是否绑定从服务器是否接管! Configuration File for keepalivedglobal_defs {   router_id NGINX_UPSTREAM}vrrp_script chk_http_port {    script "/opt/chk_nginx.sh"    interval 1    weight -2}vrrp_instance VI_1 {    state MASTER    interface eth0    virtual_router_id 51    priority 100    advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    virtual_ipaddress {        192.168.1.100    }}track_script {    chk_http_port}

从服务器配置完后运行service keepalived start! Configuration File for keepalivedglobal_defs {   router_id NGINX_UPSTREAM}vrrp_instance VI_1 {    state BACKUP    interface eth0    virtual_router_id 51    priority 98 #每个从服务器数字要改变    advert_int 1    authentication {        auth_type PASS        auth_pass 1111    }    virtual_ipaddress {        192.168.1.100    }}

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