title: Kong and Postresql running on dockers, pgAdmin cannot connect to database
body: <p>I have <code>kong:latest</code> and <code>postgres:9.6</code> running in <code>containers</code>.    </p>
  
  <p>I can see that <code>postgres</code> is running as: <code>0.0.0.0:5432-&gt;5432/tcp</code>.    </p>
  
  <p>I used <code>network utility</code> to check <code>0.0.0.0:5432</code> and it shows that this port is being used by <code>postgres</code>.    </p>
  
  <p>I have <code>dpage/pgadmin4</code> running as <code>0.0.0.0:80-&gt;80/tcp, 443/tcp</code>, I have opened browser with <code>0.0.0.0:80</code>, logged in and it works.    </p>
  
  <p>Now I try to connect to <code>postgres</code> using default <code>Kong</code> credentials given during running <code>postgres</code> <code>image</code> which are:    </p>
  
  <pre><code>-e "POSTGRES_USER=kong" \
  -e "POSTGRES_DB=kong" \
  -e "POSTGRES_PASSWORD=kong" \   
  </code></pre>
  
  <p>so I used <code>kong</code> as connect parameters for <code>pgAdmin</code> and I get:    </p>
  
  <pre><code>could not connect to server: Connection refused
  Is the server running on host "0.0.0.0" and accepting
  TCP/IP connections on port 5432?     
  </code></pre>
  
  <p>What do I do wrong?<br>
  Thank you! :-)</p>