DevOps Tutorial #119: Kubernetes ConfigMap & Secrets Explained | Store Env Vars in Pods | 2025

Confused between ConfigMap & Secrets in Kubernetes (K8s)? 🔐 You’re not alone!
In this beginner-friendly DevOps Tutorial, I explain how to securely manage environment variables in your Kubernetes apps using ConfigMap and Secrets.

This complete hands-on guide (in Hindi/Urdu) will show you how to inject environment variables and sensitive credentials into Pods in the right and secure way – using YAML files and real-time Minikube setup on Windows.

🚀 What You’ll Learn Step-by-Step:
✅ What is a ConfigMap?
✅ What is a Secret in Kubernetes?
✅ Difference between ConfigMap vs Secret
✅ How to create ConfigMap & Secret YAML files
✅ Inject them into Pods using envFrom
✅ Base64 encoding for secret values
✅ kubectl commands for real-time testing
✅ Secure handling of DB passwords inside Pods
✅ Use-case explanation with real-world example

🎯 Perfect for DevOps engineers, students, and working professionals who want to master environment management in Kubernetes with confidence!

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Source Code:
https://github.com/farzeen-ali/Kubernetes-ConfigMap-Secrets

DevOps Lecture Notes:
https://github.com/farzeen-ali/DevOps-2025-Important-Concepts

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