Section 16 | Kubernetes ConfigMaps & Secrets Explained | Zero to Hero + Hands-on Real DevOps Project
In this video, we deep dive into Kubernetes ConfigMaps and Secrets with a real-world DevOps project and hands-on implementation.
If you're learning Kubernetes, this is one of the most important concepts you MUST understand how to separate configuration from application code and securely manage sensitive data like passwords and API keys.
We don’t just talk theory we build and deploy a MySQL application using ConfigMaps, Secrets, Persistent Volumes, and Kubernetes Deployments.
🔗 Useful Links:
github link : https://github.com/arumullayaswanth/K...
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🔥 What you’ll learn in this video:
What are ConfigMaps in Kubernetes (with real examples)
What are Secrets and why they are critical for security
Difference between ConfigMaps vs Secrets
How Kubernetes injects configuration into Pods
Real-world project with MySQL using ConfigMap & Secret
Persistent Volume (PV) and Persistent Volume Claim (PVC)
Step-by-step deployment on Kubernetes & EKS
Live demo: Changing config WITHOUT rebuilding code
Live demo: Updating secrets securely
Debugging common issues (CrashLoopBackOff, PVC issues)
💡 Real DevOps Insight:
In production systems, code should never change for configuration updates. Kubernetes allows dynamic configuration using ConfigMaps and Secrets — this is the backbone of scalable systems.
🧪 Hands-on Project:
We deploy a MySQL database using:
ConfigMap (DB name, user)
Secret (passwords)
Persistent storage
Kubernetes Deployment & Service
📌 Tools Used:
Kubernetes (Minikube & EKS)
kubectl
Docker
🚀 This video is part of the Kubernetes Zero to Hero series.
If you want to become a DevOps engineer, mastering ConfigMaps and Secrets is non-negotiable.
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