Day 28: Kubernetes ConfigMaps & Secrets Explained | Production-Ready Skills | CKA Course 2025
👉 GitHub Repository: https://github.com/CloudWithVarJosh/CKA-Certification-Course-2025
👉 CKA 2025 Playlist: https://youtube.com/playlist?list=PLmPit9IIdzwRjqD-l_sZBDdPlcSfKqpAt&si=1JNRkoNa75AOJx0o
📚 Welcome to Day 28!
In this lecture, we dive into Kubernetes ConfigMaps and Secrets, two essential resources for decoupling configuration and sensitive data from your container images. This builds on our earlier sessions and takes you one step closer to being production-ready in Kubernetes environments.
📝 What We’ll Cover:
✅ Why ConfigMaps are critical for application configuration management
✅ How to inject ConfigMaps into Pods as environment variables and files
✅ Understanding Kubernetes Secrets and how they securely handle sensitive data
✅ Differences between encoding vs encryption in Kubernetes Secrets
✅ How to mount Secrets into Pods as environment variables and volumes
✅ Real-world Demos: Using ConfigMaps and Secrets effectively
✅ Best practices for managing ConfigMaps and Secrets securely
💡 By the end of this lecture: You’ll understand the role of ConfigMaps and Secrets in building dynamic, scalable, and secure Kubernetes applications. You'll also know how to apply these concepts to manage configuration updates and sensitive credentials without rebuilding your containers.
🔗 Stay Connected: 👉 LinkedIn: https://linkedin.com/in/varun-joshi-2b516752
👉 GitHub: https://github.com/CloudWithVarJosh
💬 Got questions? Drop them in the comments—I’ll reply ASAP!
🔥 Don’t forget to like, share, and subscribe to stay updated with the CKA 2025 series!
⏰ Timestamps:
00:00:00 - Introduction
00:00:24 - Why and What of ConfigMaps
00:09:05 - Demo: Injecting Environment Variables into Pods
00:14:52 - Demo 1: Using ConfigMaps as Environment Variables
00:24:52 - Demo 2: Using ConfigMaps as Configuration Files (Volumes)
00:42:03 - Why and What of Kubernetes Secrets
00:45:19 - Demo 1: Using Kubernetes Secrets as Environment Variables
00:50:43 - Demo 2: Using Kubernetes Secrets as Volumes
00:53:48 - Outro
🔖 Hashtags:
#Kubernetes #CKA #CloudWithVarJosh #CKACourse #KubernetesSecrets #KubernetesConfigMap #ConfigMaps #Secrets #KubernetesDemo #CKAExam #CKAPreparation #KubernetesTraining #KubernetesTutorial #DevOps #CloudComputing #KubernetesCertification #Docker #KubernetesForBeginners #ProductionReady