Day 36: Kubernetes RBAC Authorization Explained | CKA Course 2025

Day 36: Kubernetes RBAC Authorization Explained | 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 36!
Today we dive into one of the most foundational authorization mechanisms in Kubernetes: RBAC (Role-Based Access Control).

This lecture is entirely hands-on and designed to give you a clear understanding of how roles and bindings work — whether you're working within a single namespace or granting access across the cluster.

We begin by introducing the building blocks: Role, RoleBinding, ClusterRole, and ClusterRoleBinding — including key differences, real-world use cases, and practical considerations.
Then we move on to three focused demos to show you exactly how these constructs are applied in real clusters.

📝 What We’ll Cover:
✅ What is RBAC and why Kubernetes uses it
✅ Roles vs ClusterRoles — and when to use which
✅ RoleBindings vs ClusterRoleBindings
✅ Common RBAC patterns for users, groups, and service accounts
✅ Reusing ClusterRoles in different namespaces
✅ Accessing resources across multiple namespaces with ClusterRoles
✅ Real-world demos showing RBAC in action

💡 By the end of this lecture:
You’ll be able to confidently design and apply RBAC policies in Kubernetes clusters. Whether you're giving a user access to pods in one namespace or granting team-wide deployment access across all environments, you’ll know how to do it cleanly and securely.

🔗 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
00:00:37 – Pre-requisites and Key Concepts
00:01:45 – What is RBAC Authorization?
00:04:03 – Roles vs ClusterRoles | RoleBindings vs ClusterRoleBindings
00:10:04 – Demo 1: Role and RoleBinding
00:27:02 – Demo 2: ClusterRole and ClusterRoleBinding
00:30:32 – Demo 3: Using ClusterRole with RoleBinding
00:38:32 – Outro & Next Steps

🔖 Hashtags:
#Kubernetes #CKA #CloudWithVarJosh #KubernetesRBAC #RBAC #RoleBinding #ClusterRole #CKACourse #CKA2025 #CKAExam #DevOps #KubernetesSecurity #KubernetesAccess #ClusterSecurity #ServiceAccounts #KubernetesAuthorization #KubernetesRoles #AuthorizationFlow #CKALecture #KubernetesTraining #SecureClusters

Видео Day 36: Kubernetes RBAC Authorization Explained | CKA Course 2025 канала Cloud With VarJosh