📌 Kubernetes Deployments Live Demo: Scaling, Zero-Downtime Updates & Rollbacks (Day 4 Hands-On) Welcome to Day 4 (Hands-On) of the "Learn Kubernetes in 10 Days" series! In this practical session, we move beyond theory and deploy a real Kubernetes application—step by step. This video shows you exactly how Kubernetes orchestrates scaling, rolling updates, and rollbacks behind the scenes, all with zero downtime. Perfect for DevOps engineers, cloud professionals, or anyone learning Kubernetes through real examples. 🔥 What You’ll Learn in This Hands-On Demo In this walkthrough, you will: 1️⃣ Deploy a real application using a Deployment - Create a Deployment with 3 replicas - Understand labels, selectors & pod templates - Verify ReplicaSets and pods created for you automatically 2️⃣ Perform a zero-downtime rolling update - Update the container image - Watch how Kubernetes: - Creates a new ReplicaSet - Gradually replaces old pods with new ones - Maintains service availability during the update 3️⃣ Roll back to a previous Deployment version - Trigger a rollback - Observe Kubernetes recreate the older version pods - Understand how RS history enables safe rollbacks This is exactly how production-grade Kubernetes clusters stay resilient and continuously available. 🎯 Who This Video Is For - DevOps & SRE engineers - Cloud engineers (AWS | Azure | GCP) - Kubernetes beginners & intermediates - Developers deploying microservices - Anyone preparing for Kubernetes certifications (CKA, CKAD) Whether you're learning K8s from scratch or sharpening your production skills, this lesson gives you real cluster experience. 📘 Topics Covered - Kubernetes Deployments - ReplicaSets - Scaling applications - Rolling updates (zero downtime) - Rollbacks - kubectl commands - Real deployment workflow - Cloud-native release strategy 🔔 Continue the “Learn Kubernetes in 10 Days” Series Make sure you watch Days 0–3 and Day 4 part 1 (Deployments theory) for the architecture and fundamentals before jumping further ahead. 📅 Watch the Full Series (Playlist) 👉 Learn Kubernetes in 10 Days – 2025 Edition: ⭐ If you found this helpful Like 👍 Subscribe 🔔 Share with another DevOps learner 🚀 🔗 Links Playlist: Previous: Deployments Theory (Day 4 pt 1): Next: K8s Services (Day 5):