{
    "Control-agent": {
{% if failover is vyos_defined %}
        "http-host": "{{ failover.source_address }}",
        "http-port": 647,
        "control-sockets": {
            "dhcp4": {
                "socket-type": "unix",
                "socket-name": "/run/kea/dhcp4-ctrl-socket"
            }
        }
{% endif %}
    }
}