title: Docker containers and Node.js clusters
body: <p>I have an api server running Node.js that was using it's cluster module and testing looked to be pretty good. Now our IT department wants to move to using Docker containers which I am happy about but I've never actually used it other than just playing around. But I had a thought, the Node.js app runs within a single Docker process so the cluster module wouldn't really be the best as the single Docker process can be a slow point of the setup until the request is split up within that process by the cluster module.</p>
  
  <p>So really a cluster of Docker containers running being able to start and stop them on the fly is more important than using Node.js' cluster module correct?</p>
  
  <p>If I have a cluster of containers, would using Node.js' cluster module get me anything? The api endpoints take less than .5sec to return (usually quite a bit less).</p>
  
  <p>I'm using MySQL (believe it's a single server, nothing more currently) so there shouldn't be any reason to use a data integrity solution then. </p>