I’m a huge fan of running common open source packages in Docker containers.  It greatly simplifies deployment, re-deployment, maintenance and backup of software that can be very complicated otherwise.  In my lab, I have ended up with enough containers that one Docker host can’t house them all.  My solution was to create a multi-node Docker Swarm cluster.  Like many clustered solutions, this poses the question of “how am I going to load balance this”.  Here…