CKA Certification Course 2025 - Day 39: Custom Resources (CR) and Custom Resource Definitions (CRD) Explained with Demo | CKA 2025

Day 39: Custom Resources (CR) and Custom Resource Definitions (CRD) Explained with Demo | CKA Course 2025 👉 GitHub Repository: https://github.com/CloudWithVarJosh/CKA-Certification-Course-2025 👉 CKA 2025 Playlist: https://youtube.com/playlist?list=PLmPit9IIdzwRjqD-l_sZBDdPlcSfKqpAt&si=1JNRkoNa75AOJx0o 📚 Welcome to Day 39! Today, we step into the powerful world of Custom Resources and Custom Resource Definitions (CRDs) — the building blocks for extending Kubernetes beyond built-in objects. If you've ever used Prometheus, Velero, or Crossplane, you're already using CRDs! 📝 What We’ll Cover: ✅ What are Custom Resources and why they matter ✅ Understanding Custom Resource Definitions (CRDs) ✅ How Kubernetes recognizes and validates custom types ✅ The role of controllers in acting upon CRs ✅ Full demo: Create a CRD, apply a CR, and discuss how a controller could automate actions 💡 By the end of this lecture: You’ll understand how to define your own Kubernetes resource types, how Kubernetes treats these extensions natively, and why controllers are essential to bring CRs to life. 🔗 Stay Connected: 👉 LinkedIn: https://linkedin.com/in/varun-joshi-2b516752 👉 GitHub: https://github.com/CloudWithVarJosh 💬 Got questions? Drop them in the comments — I’ll reply ASAP! 🔥 Don’t forget to like, share, and subscribe to stay updated with the CKA 2025 series! ⏰ Timestamps: 00:00:00 – Introduction 00:00:41 – What Are Custom Resources (CRs) and Custom Resource Definitions (CRDs) 00:19:39 – Demo: Creating and Using CRDs with a Real Example 00:34:06 – Outro and What's Next (Kubernetes Operators) 🔖 Hashtags: #Kubernetes #CKA #CloudWithVarJosh #CKACourse #CKA2025 #CKAExam #KubernetesCRD #CustomResources #KubernetesController #KubernetesDemo #CRDController #KubernetesAPI #K8sTraining #DevOps #KubernetesOperators #ExtendKubernetes #CloudNative