A High Availability (HA) cluster ensures that your services remain online even if a server hardware failure occurs. This guide walks you through a production-ready setup using Pacemaker, Corosync, and Shared Storage. 1. Prerequisites & Environment You will need two…
When a deployment goes sideways, knowing which command to run can save you hours of frustration. This guide covers the essential commands for debugging OpenShift/Kubernetes clusters, categorized by the depth of the issue. 1. The Essentials: Initial Discovery The first…
Kubernetes Pod Status Reference In Kubernetes, pod health is tracked through a high-level Phase and more specific Container States. When you run kubectl get pods, the STATUS column provides a summary of these combined values. 1. The 5 Pod Phases…