global_defs {
  notification_email {
    me@employer.fr
  }
  notification_email_from server1@employer.fr
  router_id mysql-ha-server1
  smtp_server 10.1.5.440
  smtp_connect_timeout 30
}

vrrp_script healthcheck {
  script "/usr/local/sbin/keepalived-healthcheck"
  interval 5
}

vrrp_instance probddwrite1 {
  interface prostore
  state SLAVE
  priority 101
  virtual_router_id 51
  smtp_alert
  authentication {
    auth_type PASS
    auth_pass xxx
  }
  virtual_ipaddress {
    10.1.13.10
  }
  nopreempt
  track_script {
    healthcheck
  }
}
vrrp_instance probddread1 {
  interface prostore
  state BACKUP
  priority 100
  virtual_router_id 52
  smtp_alert
  authentication {
    auth_type PASS
    auth_pass xxx
  }
  virtual_ipaddress {
    10.1.13.11
  }
  nopreempt
  track_script {
    healthcheck
  }
}

18,19c18,19
<   state SLAVE
<   priority 101
---
>   state BACKUP
>   priority 100
36,37c36,37
<   state BACKUP
<   priority 100
---
>   state SLAVE
>   priority 101