freeCodeCamp is a nonprofit organization offering free online coding courses and programming tutorials, covering topics such as web development, data science, and machine learning. Learners can gain practical coding skills, build real-world projects, and earn certifications to advance their careers in tech.

freeCodeCamp

Comprehensive Kubernetes administration course aligned with version 1.34 and the 2026 CKA exam curriculum. Covers foundational concepts through advanced troubleshooting, including cluster architecture, multi-node setup with kubeadm, control plane components (API server, etcd, scheduler, controller manager), worker node agents (kubelet, kube-proxy), core objects (pods, deployments, services, namespaces), RBAC configuration, Helm and Kustomize for application management, rolling updates and rollbacks, ConfigMaps and Secrets for configuration injection, horizontal pod autoscaling with metrics server, and practical exam preparation tips for the performance-based test environment.