title: Modifying nginx config directly in memory?
body: <p>This might be a very silly question but I'll still ask it.
  Nginx reads nginx.conf file &amp; keeps information in memory/cache until you do a 'nginx -s reload'. 
  Is there a way were I can modify nginx configuration directly in memory as I need to do reload multiple times per minute and config file can be huge.</p>
  
  <p>Basically the problem I'm trying to solve is that I have multiple docker containers coming up &amp; down dynamically on a set of host machines. Every time a container comes up, it'll have a different IP &amp; port open (application design constraint). And I'm thinking of using Nginx as reverse proxy. What should I do to solve this problem considering the fact that final product might have 3000 - 5000 containers running on a cluster of hosts. The rate at which containers are launched/destroyed might be around 100 per second.I need a fast way to make sure routing is happening properly</p>