Скачать или смотреть 20. Kubernetes ConfigMaps & Secrets Live Demo

Master Kubernetes ConfigMaps & Secrets step-by-step in this hands-on tutorial! We cover creation via CLI & YAML, mounting as environment variables and files, and the differences in live update behavior — perfect for beginners and pros looking to manage Kubernetes configurations efficiently.

📌 Watch Part 1 (Theory)
🎥 Kubernetes ConfigMaps & Secrets Explained →    • 19. Kubernetes ConfigMaps & Secrets Explai...  

✔️ Learn to create ConfigMaps & Secrets using CLI & YAML
✔️ Understand environment variables vs file mounts in Kubernetes
✔️ See live updates in action — when Pods restart & when they don’t
✔️ Mount Secrets as files with controlled permissions
✔️ Apply real-world best practices for Kubernetes config management

🔥 Whether you’re a DevOps engineer, Kubernetes beginner, or cloud enthusiast, this demo will level up your skills and confidence.

📌 Commands Used in This Video:
Create a ConfigMap
kubectl create configmap app-config --from-literal=APP_COLOR=blue

Create a Secret
kubectl create secret generic app-secret \
--from-literal=DB_USER=mydbuser \
--from-literal=DB_PASS=mypassword

Apply the Pod manifest
kubectl apply -f secret-pod-demo.yaml

Get all Pods
kubectl get pods

View Pod logs
kubectl logs secret-file-demo

Exec into the Pod
kubectl exec -it secret-file-demo -- sh

Inside Pod: list mounted secret files
ls -l /etc/secret

Inside Pod: read secret file
cat /etc/secret/DB_USER

💬 Your turn — Drop your questions in the comments & let's discuss!
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📚 Chapters
0:00 🎬 Welcome Back - Part 2!
0:46 📋 Today's Hands-On Plan
2:03 🛠️ Minikube Setup & Cleanup
2:56 🗺️ Create Config Map via CLI
5:47 📝 Create Config Map via YAML
9:47 🤫 Create Secret via CLI
15:33 🔑 Create Secret via YAML
20:33 🌍 Use Config Map & Secret as ENV
32:05 🔄 Update ENV Variables Behavior
37:11 📁 Use Config Map as Mounted Files
42:25 🔁 Update Mounted Files Behavior
46:15 📜 Use Secrets as Mounted Files
51:57 🧹 Final Cleanup

🎓 Continue Learning with These Playlists :

🐧 Linux for Beginners (Start from scratch):
👉 [Watch the Playlist](   • Linux for Beginners 🐧  )

💻 Linux Command Line Tutorials (Terminal-focused skills):
👉 [Explore Commands](   • Linux Command  )

🚀 Kubernetes Series for Admins and Devs :
👉 [Start Learning Kubernetes](   • Kubernetes  )

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