keepalived

vrrp.conf

vrrp_sync_group VG {
  group {
    VI
    VE
  }

  notify_master /etc/keepalived/vrrp_master.sh
  notify_backup /etc/keepalived/vrrp_backup.sh
  notify_fault  /etc/keepalived/vrrp_backup.sh
  notify        /etc/keepalived/vrrp_state.sh
}

vrrp_instance VI {
  state BACKUP
  interface eth0
  lvs_sync_daemon_interface eth1
  garp_master_delay 5
  virtual_router_id 101 #基本MASTERとBACKUPも同じにしてかぶらないよう気をつける
  priority 100
  nopreempt
  advert_int 1
  smtp_alert
  authentication {
    auth_type PASS
    auth_pass password
  }
  virtual_ipaddress {
    172.19.10.111/24 dev eth0
  }
}

vrrp_instance VE {
  state BACKUP
  interface eth1
  garp_master_delay 5
  virtual_router_id 102
  priority 100
  nopreempt
  advert_int 1
  smtp_alert
authentication {
  auth_type PASS
  auth_pass password
  }
virtual_ipaddress {
  192.168.99.111/24 dev eth1
  }
}