Navigation Menu

Testing With Podman – Complete Uninstall/Reinstall

By on Mar 21, 2019 in Software

Background Sometimes it’s necessary to uninstall completely, and reinstall when testing software. This is something I have been doing with podman on RHEL 7.6 since about 6AM today 🙂 I figured it was worth capturing the instructions I have developed while testing user namespaces and rootless containers. This could make your life easier too. Complete Uninstall...

Read More

Learning Container Engines by Demo

By on Sep 19, 2018 in Article

Background So, this morning I had a call with some customers who are using Podman in RHEL 7.6 Beta. We got into a pretty good discussion about what a container engine does. Many people have tackled this subject before – Liz Rice has a great talk where she builds a container engine from scratch. I loved her talk and have been contemplating on how to expand on...

Read More

Recap of Container Talks at DevConf US

By on Aug 21, 2018 in Article

This past weekend, I had the pleasure of attending the first ever DevConf US 2018, which is the 1st annual, free, Red Hat sponsored technology conference for community project and professional contributors to Free and Open Source technologies at the Boston University in the historic city of Boston, USA. This was a technical conference in its truest sense, with a lot...

Read More

What is sVirt and How Does it Isolate Linux Containers?

By on Jul 10, 2018 in Article

Background What is sVirt and, why does it matter for your containers? The short answer is, because sVirt is another layer of security and defense in depth is a good approach to security. The longer answer is, sVirt dynamically generates an SELinux label for every single one of your containers, which makes them less likely to be able to break into each other, break...

Read More

Getting Ninja with Runc

By on Jul 28, 2017 in Article

Background Have you ever tried to get runc to work? Did you have that WTF moment where you were like, this is weird, and annoying, and why do I even need to know this? When, I use docker, everything just works. Well, I am here to help. Why might you want to get ninja with Runc? Well, like any good hacker, because it helps you understand how all of the pieces fit...

Read More