DevOps Learning Labs
Welcome to DevOps Learning Labs — a comprehensive, structured learning journey through the entire DevOps and Kubernetes ecosystem.
🎯 What This Project Is
A practical, open-source, teachable learning environment that takes you from Docker basics all the way through multi-region Kubernetes deployments with GitOps automation, observability, and advanced patterns.
📋 Learning Path (Standard Track: ~1-2 weeks)
Phase 1: Containerization (Days 1-2)
- Theory: DevOps fundamentals, Docker concepts
- Labs: 00-01 (Docker basics, image building, pushing to registry)
Phase 2: Kubernetes Fundamentals (Days 3-4)
- Theory: K8s architecture, workloads, networking
- Labs: 02-05 (Pods, Deployments, Services, ConfigMaps, Secrets)
Phase 3: Helm & Packaging (Days 5-6)
- Theory: Helm charts, templating, dependencies
- Labs: 06 (Create and deploy Helm charts)
Phase 4: Multi-Region & Sidecars (Days 7-8)
- Theory: Advanced patterns, multi-cluster architectures
- Labs: 07-08 (2 Minikube clusters, inter-cluster networking, sidecars)
Phase 5: GitOps & Observability (Days 9-10)
- Theory: GitOps principles, Flux, observability
- Labs: 09-10 (Flux deployment, Prometheus, Grafana, Loki)
Phase 6: Troubleshooting & Integration (Days 11+)
- Theory: Advanced debugging, security, performance
- Lab: 11 (Hands-on troubleshooting scenarios)
🛠️ Technology Stack (All Open-Source)
| Component | Tool | Why |
|---|---|---|
| Local Kubernetes | Minikube + kind | Lightweight, multi-cluster capable |
| Container Runtime | Docker CE | Industry standard |
| K8s Package Manager | Helm | De facto standard for K8s deployments |
| GitOps Automation | Flux CD | CNCF project, enterprise-ready |
| Metrics | Prometheus | Time-series DB, Kubernetes-native |
| Dashboards | Grafana | Open-source, powerful visualization |
| Logging | Loki | Lightweight log aggregation |
| Tracing | Jaeger (optional) | Distributed tracing |
| Container Registry | Docker Hub / ghcr.io | Free image hosting |
| K8s UI (Built-in) | Minikube Dashboard | Visual pod/service management |
| K8s Terminal UI | k9s (optional) | Real-time cluster monitoring |
| K8s IDE | Lens (optional) | Enterprise visual IDE for K8s |
🎓Interview & Self-Assessment
- 📄 Interview Prep: Q&A for self-study and validation
🔗 Resources & References
- Kubernetes Official Docs: https://kubernetes.io/docs/
- Helm Documentation: https://helm.sh/docs/
- Flux CD Documentation: https://fluxcd.io/flux/
- Prometheus: https://prometheus.io/
- Grafana: https://grafana.com/
🎯 Quick Links
First Time? → Start with Setup Guide
Want Theory? → Read Theory Modules
Ready to Code? → Jump to Lab 00
Preparing for Interview? → Check Interview Prep