• Removing Stale Docker Images

    If you do any kind of “development” in docker land, you’ll be creating new images all the time. The latest versions of Docker no longer use Union FS, and instead use devicemapper to merge together all these different “layers”. Devicemapper generates rather largish files, so if you’re not careful, you can quickly run out of disk space (especially if you’re on an EC2 instance with a tiny 8GB drive.)

  • On the Construction of Murderous Robots

    Englert, Siebert, and Ziegler recently published a paper which purports to prove that it is impossible for a robot to correctly decide whether or not to kill a person.

  • Setting up Logstash with Docker

    Because this took me all day today, I wanted to share how to get Logstash up and running under Docker.

  • Exploring Ansible with Vagrant

    I’m learning Ansible at the moment. In order to play around with it with in nice safe disposable environment, I’ve created an “Ansible playground” with Vagrant.

  • Automatic Notifications of Updates in Ubuntu

    Have a server running Ubuntu? Want an email when there are packages that need updating? Here’s how.

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