1. Install Docker. (https://www.docker.com/)

2. We are going to use a bunch of docker hub images. I'll explain what these are in a bit, but for now, run:

   docker pull rabbitmq:3.6
   docker pull rabbitmq:3.6-management
   docker pull golang:1.8-alpine
   docker pull datadog/docker-dd-agent:latest
   docker pull logstash