set interfaces ethernet eth0 address '1.1.1.37/24'
set interfaces ethernet eth0 description 'outside'

set high-availability vrrp group TST virtual-address '1.1.1.36/24'
set high-availability vrrp group TST health-check failure-count '3'
set high-availability vrrp group TST health-check interval '2'
set high-availability vrrp group TST health-check script '/config/scripts/vrrp-health.sh'
set high-availability vrrp group TST interface 'eth0'
set high-availability vrrp group TST priority '100'
set high-availability vrrp group TST vrid '1'

set interfaces ethernet eth1 address '10.1.1.2/24'
set interfaces ethernet eth1 description 'inside'

set high-availability vrrp group TST_LAN virtual-address '10.45.1.1/24'
set high-availability vrrp group TST_LAN interface 'eth1'
set high-availability vrrp group TST_LAN priority '100'
set high-availability vrrp group TST_LAN vrid '2'

set high-availability vrrp sync-group SYNCgrp member 'TST'
set high-availability vrrp sync-group SYNCgrp member TST_LAN
set high-availability vrrp sync-group SYNCgrp transition-script master '/config/scripts/vrrp-master.sh'

vyos@vyos:~$ cat /run/keepalived/keepalived.conf
# Autogenerated by VyOS
# Do not edit this file, all your changes will be lost
# on next commit or reboot

global_defs {
    dynamic_interfaces
    script_user root
    notify_fifo /run/keepalived/keepalived_notify_fifo
    notify_fifo_script /usr/libexec/vyos/system/keepalived-fifo.py
}

vrrp_script healthcheck_TST {
    script "/config/scripts/vrrp-health.sh"
    interval 2
    fall 3
    rise 1
}
vrrp_instance TST {
    state BACKUP
    interface eth0
    virtual_router_id 1
    priority 100
    advert_int 1
    preempt_delay 0
    virtual_ipaddress {
        1.1.1.36/24
    }
    track_script {
        healthcheck_TST
    }
}
vrrp_instance TST_LAN {
    state BACKUP
    interface eth1
    virtual_router_id 2
    priority 100
    advert_int 1
    preempt_delay 0
    virtual_ipaddress {
        10.45.1.1/24
    }
}

vrrp_sync_group SYNCgrp {
    group {
        TST
        TST_LAN
    }
}