Can you show me how you setup Kibana with ES & Logstash? I've tried setting them up separetely before but it got too convuluted for me. With Docker, I might actually get it going finally. I administer a few servers and checking logs has always been an issue for me. Usually, I end up doing it after the fact because I wasn't warned of issues.
This is a great post that goes through the setup (mea-culpa it is actually 3 one-liners, 1 for E,L, and K :) ):
http://evanhazlett.com/2014/11/Logging-with-ELK-and-Docker/
Good luck!
What I like the most personally is how easy it is to install and experiment with 3d party tools. You want an elastic search stack? In one command you have a webserver hosting Kibana with Elastic Search and Logstash properly configured on your local. Jenkins, Elastic Search, Redis, Postgres, etc: they all have their dockerfiles and can be installed as one liners. Removing them is equally as easy.
Oh and I don't know why it is written that running a Docker registry is "extremely complex". Just like any Dockerized app it is a one-liner.
This new ease-of-install just by itself is worth of my gratitude to the guys that build it.