User Data for automated RancherOS instances
April 27, 2016
There are a lot of container management services poping up these days and right now Rancher is my choice in solutions (for the moment). One of the coolest accessories to go with this container ranch is RancherOS. The OS is purpose built to do nothing but Docker and, in fact, runs the few required system services in Docker as well. Comming in at a massive 27MB (For v0.4), it’s a perfect choice to run in AWS under something like spot instances and autoscaling. However, if you’re properly autoscaling – you need a way for your new hosts to join the RancherOS cluster… which is where user data (aka cloud-init) comes in.
Tutum – The fastest way to Docker
October 28, 2015
Tutum styles itself as “The Docker Platform for Dev and Ops”. What that really means is that Tutum provides a nice web interface for running clusters of Docker containers across multiple clouds. Most have heard of Tutum since the company recently found itself in the news due to it being acquired by Docker. Since it is so popular right now it’s worth sharing my experience using Tutum, which does predate the media blitz.