Скачать или смотреть Day 6 | Pods, ReplicaSets & Deployments Explained | Full Theory + Dry Run YAML + Interview Guide

Welcome to Day 6 of our Kubernetes Zero to Hero series 🔥
In this 25-minute masterclass, we’ll go from zero to production-level understanding of Kubernetes Workloads — Pods, ReplicaSets, and Deployments — with real hands-on YAML demos, dry-run best practices, and interview-level explanations.

We’ll cover everything you need to confidently answer Kubernetes questions in your next DevOps interview 💪

📘 Topics Covered

✅ What is a Kubernetes Workload
✅ Pod deep dive (architecture, states, lifecycle, restart policy)
✅ ReplicaSet explained with practical example
✅ Deployment – rolling updates, scaling, rollback
✅ Stateless vs Stateful workloads
✅ Complete dry-run workflow → YAML → apply
✅ Interview questions and answers
✅ Kind cluster setup (v1.29.2)
✅ Accessing Pods via Service

🧠 GitHub Source Code

👉 Download All YAML Files Here:
🔗 https://github.com/techwithdiwana/kub...

⏱️ Timestamps

| Time | Section | | |
| ----- | --------------------------------------------------------- | --------- | --------------------- |
| 00:00 | 🔥 Hook – 4 Advanced Interview Questions (Suspense start) | | |
| 01:00 | 📖 What is a Kubernetes Workload | | |
| 02:00 | 🏗️ Setup Kind Cluster (v1.29.2) | | |
| 03:30 | 🧩 Create Namespace "demo" | | |
| 04:00 | 🧱 Pod Concept – What, Why, and How | | |
| 06:00 | ⚙️ Pod Lifecycle + Phases Explained | | |
| 07:30 | 🧾 Pod Dry-Run → YAML → Apply | | |
| 09:00 | 👥 ReplicaSet – Concept and Role | | |
| 10:00 | 🧩 Deployment – Hierarchy & Real Hands-On | | |
| 12:00 | ⚡ Rolling Updates & Scaling in Deployment | | |
| 13:30 | 🔁 Relationship: Deployment → ReplicaSet → Pod | | |
| 15:00 | 🌐 Expose Deployment via Service | | |
| 16:00 | 🧠 Why Deployments are Stateless | | |
| 17:00 | 🗂️ StatefulSets vs Deployments (Interview Tip) | | |
| 18:00 | 🧹 Cleanup + Best Practices | | |
| 19:00 | 🎓 Quick Interview Q&A Recap | | |
| 21:00 | 🧠 Pro-Level Insights & Tips | | |
| 23:00 | 🎯 Outro + Next Episode Teaser (Ingress + Load Balancer) | | |
| 24:00 | 🙌 Like | Subscribe | Comment "TWD K8s Pro" |

💡 Interview Questions Discussed

1️⃣ What is a Kubernetes workload?
2️⃣ What are the phases of a Pod?
3️⃣ Why is Deployment called a stateless workload?
4️⃣ Difference between Pod, ReplicaSet, and Deployment.
5️⃣ How does a Deployment perform rolling updates?
6️⃣ StatefulSet vs Deployment — when to use which?

⚙️ Commands You’ll Learn

Cluster setup
kind create cluster --name twd-cluster --config kind-config.yaml
kubectl get nodes
kubectl cluster-info

Namespace
kubectl create namespace demo

Pod
kubectl run twd-pod --image=nginx:latest --port=80 -n demo --restart=Never --dry-run=client -o yaml pod.yaml
kubectl apply -f pod.yaml

Deployment
kubectl create deployment web --image=nginx:latest --replicas=3 -n demo --dry-run=client -o yaml deployment.yaml
kubectl apply -f deployment.yaml

ReplicaSet (export & apply)
kubectl get rs -n demo -l app=web
kubectl get rs web-xxxxx -n demo -o yaml rs.yaml

Service
kubectl expose deployment web -n demo --port=80 --target-port=80 --name=web-svc
kubectl get svc -n demo

Cleanup
kubectl delete ns demo
kind delete cluster --name twd-cluster

💬 Support the Channel

If this video helped you understand Kubernetes better,
hit 👍 Like, 💬 Comment “TWD K8s Pro”, and 🔔 Subscribe for more real-world DevOps content!

⚡ Connect with Me

🌐 GitHub → github.com/techwithdiwana

💼 LinkedIn → linkedin.com/in/techwithdiwana

🎓 Playlist → Kubernetes Zero to Hero (Day 1–30)

🔖 Hashtags

#Kubernetes #DevOps #TechWithDiwana #KubernetesTutorial #KubernetesInterviewQuestions