一、基本信息

代理主机01：192.168.198.99
代理主机02：192.168.198.98
虚拟IP：192.168.198.88
网卡：ens33

二、配置文件

1. /etc/hosts

  1. 192.168.198.99 proxy-1
  2. 192.168.198.98 proxy-2

2. /etc/keepalived/keepalived.conf

  1. ! Configuration File for keepalived
  3. global_defs {
  4.    notification_email {
  5.         chenhaikun8@gmail.com
  6.    }
  7.    notification_email_from keepalived@vmware.com
  8.    smtp_server 127.0.0.1
  9.    router_id proxy-1
  10.    vrrp_mcast_group4 224.4.4.4
  11. }
  13. vrrp_script chk_proxy {
  14.     script "/etc/keepalived/proxy_check.sh"
  15.     interval 2
  16.     weight -2
  17. }
  19. vrrp_instance VI_1 {
  20.     state BACKUP
  21.     nopreempt
  22.     interface ens33
  23.     virtual_router_id 11
  24.     priority 100
  25.     advert_int 1
  26.     authentication {
  27.         auth_type PASS
  28.         auth_pass 1111
  29.     }
  31.     virtual_ipaddress {
  32.         192.168.198.88/24 dev ens33 label ens33:1
  33.     }
  35.     track_script {
  36.         chk_proxy
  37.     }
  39. }

3. /etc/keepalived/proxy_check.sh

  1. #!/bin/bash
  2. # === nginx prxy check script ===
  3. netstat -nlpt | grep -w "80" &>> /dev/null
  5. if [ $? -ne 0 ]
  6. then
  7.     systemctl stop keepalived
  8. fi
  9.     exit 0