Kubernetes
Kubernetes Configuration (Kubeadm HA Cluster)
Step-by-step guide to deploying a highly available Kubernetes cluster on-prem using kubeadm. Covers CoreDNS setup, external etcd with SRV discovery, HAProxy + KeepAlived API load balancing, and Calico networking (iptables → eBPF). Includes configs, verification, and best-practice automation tips.