Kifarunix

DevOps Engineer and Linux Specialist with deep expertise in RHEL, Debian, SUSE, Ubuntu, FreeBSD... Passionate about open-source technologies, I specialize in Kubernetes, Docker, OpenShift, Ansible automation, and Red Hat Satellite. With extensive experience in Linux system administration, infrastructure optimization, information security, and automation, I design and deploy secure, scalable solutions for complex environments. Leveraging tools like Terraform and CI/CD pipelines, I ensure seamless integration and delivery while enhancing operational efficiency across Linux-based infrastructures.

Configure CloudBees CI High Availability for Managed Controllers on OpenShift

How to Configure CloudBees CI High Availability for Managed Controllers on OpenShift

If you are about to create your first CloudBees CI managed controller on OpenShift and plan to “turn on HA later,” check your storage configuration

CloudBees CI Active Directory Integration: How to Configure Secure Authentication

CloudBees CI Active Directory Integration: How to Configure Secure Authentication

CloudBees CI can use Active Directory as its authentication source, allowing users to sign in with their existing corporate identities and Active Directory group memberships.

using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

This tutorial provides a step-by-step guide to using ConfigMaps in Kubernetes. ConfigMaps in Kubernetes are a powerful tool for managing configuration data separately from application

How to Improve Your Business With Web Services

There are plenty of ways that small businesses can thrive and even outdo their larger competitors if they harness digital technology correctly. All too often,

Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift networking with network policies is one of the most critical steps in moving from a flat, permissive cluster to a production-ready, zero-trust architecture.

Install and Setup VeraCrypt on Linux Mint

Install and Setup VeraCrypt on Linux Mint 21

In this guide, we are going to learn how to install and setup VeraCrypt on Linux Mint 21. VeraCrypt, a fork of TrueCrypt, is a

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

What is the difference between Kubernetes kubectl drain and kubectl cordon commands? Well, keeping your Kubernetes cluster healthy and running smoothly requires regular maintenance on

How to Add Capsule Servers to Red Hat Satellite: A Complete Step-by-Step Guide

How to Add Capsule Servers to Red Hat Satellite: A Complete Step-by-Step Guide

If you manage Red Hat Enterprise Linux at scale across multiple data centers, remote offices, or cloud regions, a single Satellite Server will eventually become

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

In this blog post, we will run through how to set up alerting in OpenShift 4. After configuring monitoring and persistent storage in our previous

set up PXE boot server on Ubuntu 24.04

How to Set Up PXE Boot Server on Ubuntu 24.04: Step-by-Step Guide

In this tutorial, you will learn how to set up PXE boot server on Ubuntu 24.04. Setting up a PXE (Preboot Execution Environment) boot server

document.addEventListener("DOMContentLoaded", function() { document.querySelectorAll(".scroll-box").forEach(function(box) { box.style.position = "relative"; // Needed for absolute positioning of button var button = document.createElement("button"); button.className = "copy-icon-btn"; button.setAttribute("aria-label", "Copy code"); button.innerHTML = ''; box.appendChild(button); button.addEventListener("click", function() { var text = box.innerText; navigator.clipboard.writeText(text).then(function() { button.querySelector("svg").setAttribute("fill", "#4CAF50"); setTimeout(function() { button.querySelector("svg").setAttribute("fill", "white"); }, 1500); }).catch(function(err) { console.error("Copy failed: ", err); }); }); }); });