Docker Ruby Images

In this article I will explore Docker more hands-on and describe various features of Docker using a few Ruby images as examples. You can read my previous article for an intro to Docker and virtualization. Docker Images Docker images are read only. When you pull a docker image and run it, the AuFS creates another […]

Docker vs Virtualization

The motivation behind this post is to answer a simple question: What’s the difference between Docker and classic Virtualization techniques? I set out to research this topic in depth and I will share my findings. I am by no means an expert in either Docker or virtualization so feel free to comment if you find […]

CoreOS Test Drive

Vagrant setup If you follow the CoreOS documentation and try to get a Vagrant cluster up and running the etcd cluster is not created by default. After cloning the Vagrant CoreOS repo, cd into the cluster folder and run vagrant up. This will start 3 core-os clusters numbered core-01 to core-03. You can ssh into them […]