Having worked with OpenShift for about six years now, I’ve received a lot of questions about what OpenShift is. With the 3.x shift to Kubernetes from the previous architecture this evolved from what is it, to what the differences between it and Kubernetes are. Today, we’re going to dive into that a bit. Kubernetes is the “kernel” At…
Read More →Now that Red Hat Enterprise Linux 8 Beta is out in the wild, I wanted to describe the process that got us here. Red Hat Enterprise Linux 8 Beta is the culmination of several years of feature development by Red Hat engineers and many others, in open source communities that we refer to collectively as “upstream.” In…
Read More →Like other operating systems, Red Hat Enterprise Linux provides a cryptographically-secure pseudo-random number generator (CSPRNG) as part of our kernel. It is intended to be used by cryptographic back-ends and applications requiring cryptographic operations. Unfortunately, there is much mystery around the interfaces provided. While the new random(7) manual page does clarify some aspects, it does not fully…
Read More →As an OpenShift Container platform operator, managing resources on nodes is one of the most important tasks. Setting LimitRange and Quota are the right way to limit resources. Many blog posts cover the Quota and LimitRange from the OpenShift Container Platform perspective, but they do not explain the relationship between those objects in Kubernetes and control groups…
Read More →Red Hat Enterprise Linux is the leading Linux server operating system used by enterprises across the Fortune 500. One reason enterprises choose Red Hat as the strategic provider of their operating system infrastructure is because Red Hat Enterprise Linux is the thing that stays the same so that everything else can be different. Enterprise customers need a…
Read More →Day 2 operations with updated console and Operator capabilities Today, Red Hat OpenShift Container Platform 3.11, a comprehensive, leading enterprise Kubernetes platform, is generally available and ready for download (see the release notes and download OpenShift here). OpenShift Container Platform 3.11 ships with Kubernetes 1.11, along with several notable features to better streamline Day 2 cluster and application operations….
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