keepalived.conf

BACKUP

global_defs {
  notification_email {
    xxx@gmail.com
  }
  notification_email_from keepalived@10-15-8-101
  smtp_server 127.0.0.1
  smtp_connect_timeout 4
  lvs_id nginx
}

vrrp_script chk_nginx {
  script "pidof nginx"
  interval 1
  weight 2
}

vrrp_instance WEB_102 {
  state BACKUP
  interface eth0
  virtual_router_id 102
  priority 90
  advert_int 1
  mcast_src_ip 10.15.8.101
  smtp_alert
  authentication {
    auth_type PASS
    auth_pass keep@lived
  }
  virtual_ipaddress {
    10.15.8.102
  }
  track_script {
    chk_nginx
  }
}

MASTER

global_defs {
  notification_email {
    xxx@gmail.com
  }
  notification_email_from keepalived@10-15-8-100
  smtp_server 127.0.0.1
  smtp_connect_timeout 4
  lvs_id nginx
}

vrrp_script chk_nginx {
  script "pidof nginx"
  interval 1
  weight 2
}

vrrp_instance WEB_102 {
  state MASTER
  interface eth0
  virtual_router_id 102
  priority 91
  advert_int 1
  mcast_src_ip 10.15.8.100
  smtp_alert
  authentication {
    auth_type PASS
    auth_pass keep@lived
  }
  virtual_ipaddress {
    10.15.8.100
  }
  track_script {
    chk_nginx
  }
}