Openshift / Container: Kubernetes Deep Dive: Code Generation for CustomResources, Live Code Updates Using WebDav, Principles of Container-based Application Design, Deploying Applications from Images in OpenShift: Part One: Web Console, Part Two: Command Line, Part Three: Importing Images, Kubernetes: A…
OpenShift / Kubernetes: JBoss A-MQ on OpenShift Cheat Sheet, Container Images for OpenShift: Part 1: Objectives Part 2: Structuring your images Part 3: Making your images consumable Part 4: Cloud readiness, Running a NuGet server on OpenShift, Guide to starting use AWX on top of OpenShift,…
It was at the beginning of September 2013 that I decided to create this website. The content is still very focused on RHEL 7 / CentOS 7 and it will continue to be so as we know that RHEL 8…
Six weeks after the announcement of RHEL 7.4, it is now time for the release of CentOS 7.4, also called CentOS 7 (1708). The release doesn’t only concern x86_64 architecture but also aarch64, armhfp, ppc64 and ppc64le (see download directory…
Containers: A Comparison of Linux Container Images, Intel® Clear Containers and CRI-O*, OpenShift / Kubernetes: EdX: Fundamentals of Containers, Kubernetes, and Red Hat OpenShift, Various techniques for packaging Java microservices on OpenShift, How Kubernetes Initializers work, Securing Kubernetes Cluster Networking, A MicroProfile-based microservice…
To harden a server or simply reduce its security footprint, it is very useful to get a list of the main processes running. However, it is not an obvious task to get a synthetic view like this. Using a command…
Today, Red Hat announced the official release of RHEL 7.4. To know more about this new version you can read a summary of the RHEL 7.4 changes or the RHEL 7.4 Release Notes. Several points can be highlighted: docker overlay…
Until one or two years there was almost no online trainings for the RHCSA & RHCE 7 certifications. You had to take Red Hat classes or study by yourself through books. Now, companies like EdX, Udemy and LinuxAcademy to name…
If you like containers, at some point you will deploy them into production. And you will need a dedicated server to host them. Atomic Host is the RedHat solution for this. It is a lightweight version of RHEL/CentOS 7 (there…
I don’t know if you have already heard about CPU governor. With the global warming, IT culture should integrate the various mechanisms available for reducing computer consumption. In a perfect world, during the idle periods servers should adjust their clock frequency…
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