Published in FAUN Publication·PinnedCKA — Exam Experience and thoughtsThought of writing this blog about my learning and exam experience with the Certified Kubernetes Administrator exam. I myself cleared the CKA Certification in second attempt so I feel , I can share more experience than anyone else on how to crack and what sort of things need to keep…Cka6 min readCka6 min read
PinnedOverview of Container ArchitectureTo understand container terminology, it’s very important to understand exactly what a container is — with technical precision. A container is really two different things. Like a normal Linux program, containers really have two states — rest and running. When at rest, a container is a file (or set of…Containers4 min readContainers4 min read
Feb 3Machine Config Pool — OpenShift Container Platform 4.xWhen it comes to OpenShift Container Platform 3, you are usually working with three roles for nodes: master, compute, and infrastructure (infra). OpenShift Container Platform 4 instead, by default, provides master and worker roles. There is no infra node in OpenShift 4 out-of-box(by default). When migrating from OpenShift 3 to…Openshift5 min readOpenshift5 min read
Jan 12OpenShift API Connection lost …OpenShift API Connection lost … There are many issue on day 2 day basis on openshift but the one I am describing here in this blog is quite interesting issue I have seen this issue recently in one of environment, Where OpenShift login is not working , OpenShift API connection lost. As OpenShift administrator what…Openshift3 min readOpenshift3 min read
Published in FAUN Publication·Dec 14, 2022Node/Kubelet Troubleshooting for OpenShift…Some of the most common problem you may run it with kubernetes/OpenShift nodes or with kubelet service and In this article we will look at it how to troubleshoot the node issue. We will see some common troubleshooting steps on OCP 3.11 and OCP 4.x As you all know node…8 min read8 min read
Dec 10, 2022OpenShift 4.x Routers…Before we actually start talking about router lets understand how pods and services are running on the cluster. When you create your OpenShift Container Platform cluster, pods and services running on the cluster are each allocated their own IP addresses. The IP addresses are accessible to other pods and services…Red Hat Openshift8 min readRed Hat Openshift8 min read
Nov 8, 2022Redhat Advance Cluster Manager for Kubernetes…Red Hat Advanced Cluster Management for Kubernetes provides the tools and capabilities to address various challenges with managing multiple clusters and consoles, distributed business applications, and inconsistent security controls across Kubernetes clusters that are deployed on-premises, or across public clouds. Red Hat Advanced Cluster Management for Kubernetes provides end-to-end management…Red Hat Openshift4 min readRed Hat Openshift4 min read
Sep 4, 2022How to Rebuild Master Node in OpenShift 4.x ?This article will be helpful for those who all are working with Redhat OpenShift platform , and below steps will be helpful if you want to rebuild or replace master node with new node in the cluster. Before we start node rebuild activity lets talk about the etcd backup and…Openshift5 min readOpenshift5 min read
Aug 28, 2022What are security contexts and security context constraints?Red Hat OpenShift includes a pair of security features, security contexts and security context constraints, that allow containerized applications to access protected Linux functionality. This article introduces security contexts (SCs) and security context constraints (SCCs) and explains how they solve access problems in container environments. A pod configures a container’s…Openshift5 min readOpenshift5 min read
Aug 13, 2022OpenShift Vs Kubernetes — Key Comparison…What is OpenShift ? Red Hat OpenShift is a cloud-based Kubernetes platform that helps developers build applications. It offers automated installation, upgrades, and life cycle management throughout the container stack — the operating system, Kubernetes and cluster services, and applications — on any cloud. OpenShift gives organizations the ability to…Openshift6 min readOpenshift6 min read
