Inspired by Matt’s blog post I’ve decided to make something that is similar but better fits my use case. I plan to do some clustering and routing testing and therefore I need to have similar VMs running side-by-side. These images will be short-lived and I would like to automate as many things I can. Additionally, I found out that the images shipped by Fedora require some changes to work well in my case, for example the default 2GB disk is too small. ...

I had a power mangement issue when running Fedora 19 (and later 20) on my Lenovo ThinkPad 430s. When the battery was low - the laptop just powered off itself, without a clean shutdown or even warning me. As you may guess - this wasn’t something I very happy about. Cause I discovered that it happens when the battery is still at 15%. The system reported at that time still about 40 min of available time. ...

It has been a while since my last blog post about recent Docker changes in Fedora. We’ve done some significant work over the last three weeks. Now it’s time to wrap it up. Docker is available in the repositories Now you can enjoy Docker on your Fedora system by executing just one command: yum install docker-io If you’re on RHEL/CentOS you still need to enable epel-testing repository. This shouldn’t be necessary once the lxc package will be available in stable. ...

What and why I am always sad seeing all the potential damage done to your local system, just to set up your development environment. Every time you do almost the same thing, every time you mess your system up in almost the same way. It really doesn’t matter in which language you’re wrtiting and what frameworks you use but Java (and Maven) is a pretty good, uhm, example. A development environment is not only about IDE and JDK, in almost all cases we need to have an application server too. We set it up; our application works great on it, but when we deploy it to production we experience deployment issues. Some things changed: we have different JDK, different network interfaces and so on. Everything can affect your application. ...

Lokesh, the docker-io package maintainer at Fedora, does a damn good job at keeping it up to date. I think it’s a good time to see what changed over the last weeks in the Docker-Fedora world. Why Docker is still not available in Fedora? Simple answer There are some technical issues to overcome :) Longer answer The most important blocker is lack of AUFS support in the kernel (upstream as well as Fedora’s and RHEL’s). Alex Larsson is working on a replacement for AUFS using devicemapper. You can read more about this work in a nice blog post where Alex is covering this area. ...