#Kubeadm

Kubernetes Upgrades — How Not to Mess It Up

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A real-world guide for DevOps engineers who want zero-downtime upgrades and zero post-mortems The Story That Started This Guide The alert came in at 9:47 PM. “API server unreachable.” The on-call engineer opened his laptop to find that the cluster upgrade — which was “just a version bump from 1.27 to 1.28” — had gone completely sideways. The … Read more

🧭 How To Setup Kubernetes Cluster Using Kubeadm — Step-by-Step Guide (2025)

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This guide provides a comprehensive, step-by-step walkthrough on setting up a Kubernetes cluster using Kubeadm. It covers everything from preparing the nodes and installing the necessary components like Containerd, Kubeadm, Kubelet, and Kubectl, to initializing the control plane, joining worker nodes, and verifying the cluster setup. This guide is designed for both beginners and DevOps … Read more