Configuración HAProxy sobre escribiendo la sesiones.

gistfile1.txt

listen aplicacion_web
        bind *:80
        mode http
        stats enable
        stats uri /stats
        stats realm HAProxy\ Statistics
        stats auth cda:cda
        balance roundrobin
        cookie JSESSIONID prefix nocache 
        server app-01 localhost:7000 check 
        server app-02 localhost:7001 check
        server app-03 localhost:7002 check