solutions

(à la main/scripts)

DNS Round Robin

matériel réseau

IP virtuelle (VIP)

# /etc/keepalived/keepalived.conf

global_defs {
  notification_email {
    user@my.domain.tld
  }
  notification_email_from root@master
  smtp_server 1.2.3.4
}

        

vrrp_instance vip_haproxy {
  advert_int 1
  authentication {
    auth_pass P4ssW0rD/
    auth_type PASS
  }
  interface eth1
  smtp_alert true
  priority 100 
  state MASTER
  virtual_ipaddress {
    192.168.100.100
  }
  virtual_router_id 50
}
        

global_defs { ... }

vrrp_script chk_nginx_service {
    script "killall -0 nginx"
    interval 1
}

vrrp_instance vip_haproxy {
  ...
  virtual_router_id 50

  track_script {
    chk_nginx_service
  }
}