In the last few weeks I dived deep into Docker. It's a lovely technology which uses features of linux kernel such as namespaces and control groups to give user ability to create and run lightweight linux containers.
You can read more about reasons to use docker in a blogpost that I've recently wrote for my company.
But wait, there is more. This Thursday I gave a talk "Introduction to Docker" in Warsaw hackerspace! Here are the slides (thanks flickr for all the cat pictures on Creative Commons license):
Talks at Warsaw Hackerspace are really great. I love that there are really skilled people there, willing to get involved into discussion and ask important questions.