Comment 1 for bug 1558490

I can reproduce the issue locally. Looking at keepalived.conf, I see some vrrp_instances seem to have an invalid configuration, e.g.:

vrrp_instance 53 {
  virtual_router_id 53
  # Advert interval
  advert_int 1
  # for electing MASTER, highest priority wins.
  priority 101
  state MASTER
  interface
  virtual_ipaddress {
      fd00:fd00:fd00:2000::11 dev
  }
  track_script {
  haproxy
  }
}

Note there is no "interface" defined.