title: Test if docker memcached container is used
body: <p>I am using <code>memcached</code> for caching in django and both are in separate containers. Everything seems to be working well, however, how can I make sure that the new caching mechanism is being used?</p>
  
  <p>I have read about a couple of approaches (<code>telnet</code>, <code>cache.set</code> and <code>cache.get</code> etc.), but I am not sure if they will yield an appropriate result, when both are in different docker containers.</p>