errores de configuración de haproxy

Aquí está mi configuración

global
        log /dev/log   local0
        log 127.0.0.1   local1 notice
        maxconn 4096
        user haproxy
        group haproxy
        daemon

defaults
        log     global
        mode    http
        option  httplog
        option  dontlognull
        retries 3
        option redispatch
        maxconn 2000
        contimeout     5000
        clitimeout     50000
        srvtimeout     50000

listen webfarm 0.0.0.0:80
    mode http
    stats enable
    stats uri /haproxy?stats
    balance roundrobin
    option httpclose
    option forwardfor
    server apache 192.168.1.10:8001 weight 1  maxconn 512 check

Después de la configuración, reinicié el servicio de haproxy, recibí el siguiente mensaje

root@d32b2eb97bf0:/# service haproxy start
 * Starting haproxy haproxy                                                                                                        [WARNING] 144/130034 (436) : parsing [/etc/haproxy/haproxy.cfg:17] : the 'contimeout' directive is now deprecated in favor of 'timeout connect', and will not be supported in future versions.
[WARNING] 144/130034 (436) : parsing [/etc/haproxy/haproxy.cfg:18] : the 'clitimeout' directive is now deprecated in favor of 'timeout client', and will not be supported in future versions.
[WARNING] 144/130034 (436) : parsing [/etc/haproxy/haproxy.cfg:19] : the 'srvtimeout' directive is now deprecated in favor of 'timeout server', and will not be supported in future versions.
[ALERT] 144/130034 (436) : parsing [/etc/haproxy/haproxy.cfg:21] : 'listen' cannot handle unexpected argument '0.0.0.0:80'.
[ALERT] 144/130034 (436) : parsing [/etc/haproxy/haproxy.cfg:21] : please use the 'bind' keyword for listening addresses.
[ALERT] 144/130034 (436) : Error(s) found in configuration file : /etc/haproxy/haproxy.cfg
[WARNING] 144/130034 (436) : config : proxy 'webfarm' has no 'bind' directive. Please declare it as a backend if this was intended.
[WARNING] 144/130034 (436) : config : missing timeouts for proxy 'webfarm'.
   | While not properly invalid, you will certainly encounter various problems
   | with such a configuration. To fix this, please ensure that all following
   | timeouts are set to a non-zero value: 'client', 'connect', 'server'.
[ALERT] 144/130034 (436) : Fatal errors found in configuration.

Hice los pasos anteriores en el contenedor acoplable. ¿Cómo reservar?

Gracias.

La sintaxis ha cambiado en la versión reciente de HAProxy. Tuve ese problema en la versión 1.6.5:

Cambio: listen webfarm 0.0.0.0:80

A:

listen webfarm

bind 0.0.0.0:80