Mar 3
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🚀 Kubernetes Mastery – Lesson 5-2: Declarative Manifest Management with kubectl (kubectl apply) In Lesson 5-2, we move from imperative kubectl commands (like kubectl create and kubectl scale) to a declarative workflow—the real-world way Kubernetes is managed in production. Instead of issuing one-off commands, you’ll learn how to define your application as YAML manifests (Deployment, Service, ConfigMap, Secret, etc.) and let Kubernetes continuously reconcile the cluster to match your desired state using kubectl apply. This lesson is a key foundation for modern infrastructure practices like GitOps, where all changes are version-controlled and auditable. This video is part of our complete Kubernetes learning journey, designed for: • Kubernetes beginners • Cloud & DevOps engineers • CKA (Certified Kubernetes Administrator) exam candidates ━━━━━━━━━━━━━━━━━━ 📘 Course Structure This course consists of 8 structured lessons, each starting with a conceptual introduction followed by focused, hands-on videos. In Certified Kubernetes Administrator – Kubernetes Mastery: From Cluster Setup to Troubleshooting, you’ll learn how to: • Build and configure Kubernetes clusters from scratch • Manage workloads, Deployments, Pods, and core configurations • Master scheduling rules, node affinities, and automation tools • Expose applications using Services and Ingress • Configure storage and persistent volumes • Debug, troubleshoot, and fix real-world Kubernetes issues Through practical explanations and real-world architecture thinking, you’ll gain the confidence to operate production-ready clusters. ━━━━━━━━━━━━━━━━━━ 📚 Learning Agenda (Lesson 5-2) • Understand why declarative management is essential for real-world Kubernetes operations • Organize manifests as multiple files (directory-based) or a single combined YAML (---) • Use kubectl apply -f to create and update multiple resources consistently • Learn how apply performs intelligent updates (strategic merge) instead of failing like create • Understand the last-applied-configuration annotation and how it enables diff-based updates • Clean up declaratively with kubectl delete -f using the same manifest structure ━━━━━━━━━━━━━━━━━━ 🧠 Want structured learning, PDFs & support? This YouTube series is part of a larger learning experience. On our learning platform, you’ll get: • Structured lesson flow • Downloadable PDF materials • Support questions & quizzes 👉 Full course & materials: https://learn.darumatic.com/courses/kubernetes-mastery-from-cluster-setup-to-troubleshooting/ ━━━━━━━━━━━━━━━━━━ 🏢 About Darumatic Darumatic is a cloud-native consultancy helping teams design, build, and operate modern cloud platforms with confidence. 🌐 https://darumatic.com/