Navigation Menu

How to Buy a Used Linux Container

By on Jul 22, 2017 in Article

How do you buy a used Linux container? A quick search of “how to buy a shipping container” will turn up a wealth of information, especially how to evaluate used ones. While all analogies are imperfect, this one is pretty good and it does highlight an interesting problem – basically, any Linux container image over a minute old is used in the...

Read More

Why Portability is Not the Same Thing as Compatibility

By on Jun 23, 2017 in Article

The Container Host *is* the Container Engine, and Container Image Compatibility Matters Have you ever wondered, how are containers are so portable? How it’s possible to run Ubuntu containers on CentOS, or Fedora containers on CoreOS? How is it that all of this just magically works? As long as I run the docker daemon on all of my hosts, everything will just...

Read More

Building an OpenShift Lab: Why I Used Atomic Host

By on Mar 30, 2017 in Article

RHEL Atomic Host requires a lot less configuration than a full RHEL Server installation. The docker daemon is installed and configured, storage is already setup to use device mapper on a dedicated LV, and the default tools necessary to install OpenShift are already installed. And as a bonus, the installation on my laptop in KVM virtual machines is about 10X as fast as installing a full RHEL installation.

Read More