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.

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

In this blog post, you will learn how to backup and restore applications in OpenShift 4 with OADP (Velero). In our previous guide, we covered

Configure Filebeat 8 to Write Logs to Specific Data Stream

Configure Filebeat 8 to Write Logs to Specific Data Stream

This guide will take you through how to configure Filebeat 8 to write logs to specific data stream. Are you collecting logs using Filebeat 8

deploy multinode OpenShift cluster using UPI

How to Deploy Multinode OpenShift Cluster Using UPI/User Provisioned Infrastructure

In this blog post, you’ll learn how to deploy multinode OpenShift cluster using UPI (User Provisioned Infrastructure). UPI is one of the deployment methods provided

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

How to check Docker CPU and memory usage? In this tutorial, you will learn how to check Docker container RAM and CPU usage. Just like

Deploy Nagios NRPE Agents using Ansible

Deploy Nagios NRPE Agents using Ansible

In this tutorial, you will learn how to deploy Nagios NRPE Agents using Ansible. Ansible is an open-source automation tool used for configuration management, application

Move Linux OS Installation to Another Drive

How to Move Linux OS Installation to Another Drive

Have you ever wondered if you could move Linux OS installation to another drive? Well, yes, that is definitely possible. Moving a Linux installation to

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

In this tutorial, you will learn how to integrate OpenShift with Active Directory for authentication. This setup enables users to log in to OpenShift using

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes? Kubernetes, aka K8s, is the current de facto container orchestration platform providing a robust set of tools for

Static Pods vs Mirror Pods vs DaemonSets

Kubernetes Pod Management: Static Pods vs Mirror Pods vs DaemonSets

This tutorial serves as a guide to demystify different type of Kubernetes pods, in essence, Static Pods vs Mirror Pods vs DaemonSets. In Kubernetes, a

Upgrade RHEL 8 to RHEL 9 using LEAPP

Upgrade RHEL 8 to RHEL 9 using LEAPP with Satellite Server Integration

In this tutorial, you’ll learn how to upgrade RHEL 8 to RHEL 9 using the LEAPP tool with Red Hat Satellite Server integration. Staying up

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); }); }); }); });