virtual_server {{ vip }} {{ port }} {
    lb_algo {{ lb_algo }}
    lb_kind NAT
    protocol UDP
    {% if check_enabled %}
    delay_loop {{ delay_loop }}
    delay_before_retry {{ delay_before_retry }}
    retry {{ retry }}
    {% endif %}


{% for server in config %}
    real_server {{ server.backend_ip }} {{ server.port }} {
        weight {{ server.weight }}
        {% if check_enabled %}
        MISC_CHECK {
            misc_path "{{ service_dir }}/checks/udp_check.sh {{ server.backend_ip }} {{ server.port }}"
            misc_timeout 5
        }
        {% endif %}
    }
{% endfor %}
}