title: Issue with running HAProxy locally on docker
body: <p>I have a container running HAProxy version 2.0 locally on Docker port 3001. 
  Config file is:</p>
  
  <pre><code>global  
          debug  
  
  defaults  
          log global  
          mode    http  
          timeout connect 50000
          timeout client 50000  
          timeout server 50000  
  
  frontend main  
          bind *:3000
          default_backend app  
  
  backend app  
          balance leastconn
          mode http  
          server dummy &lt;localhostIP&gt;:80
  </code></pre>
  
  <p>Docker file is:</p>
  
  <pre><code>FROM haproxy:2.0
  COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg
  </code></pre>
  
  <p>Docker Run command: </p>
  
  <pre><code>docker run -p3001 --name my-running-haproxy my-haproxy
  </code></pre>
  
  <p>I am issuing a postman GET to port 3000 and expecting HaProxy to redirect to my server "dummy" on local port 80. But I am not able to get any legible response back. Appreciate any inputs.</p>