A complete, hands-on learning path to master Kubernetes networking concepts in 24 hours through structured labs, manifests, and real-world scenarios.

This repository provides everything you need to go from Kubernetes networking beginner to competent practitioner in 24 focused hours. Each hour includes:

• Detailed learning objectives
• Ready-to-use YAML manifests
• Executable shell scripts
• Hands-on lab exercises
• Assessment checkpoints
• Flashcard prompts for retention

• Skill Level: Intermediate (basic Linux/container knowledge, new to K8s networking)
• Prerequisites: Docker installed, basic kubectl familiarity
• Time Commitment: 24 hours (can compress to 12h or 8h priority tracks)

# Clone this repository
git clone https://github.com/kubeskills/networking.git
cd networking

# Run setup script (installs kind, kubectl, and creates test cluster)
./setup.sh

# Verify installation
kubectl get nodes

Use Killercoda Kubernetes Labs: https://killercoda.com/

# Navigate to each hour's directory
cd hour-01/

# Read the hour's README
cat README.md

# Run the lab script
./lab.sh

# Apply manifests as instructed
kubectl apply -f manifests/

# Complete assessment questions
cat assessment.md

Short on time?

• 12-Hour Priority Track: See COMPRESSED-12H.md

• Pomodoro: 25m focus + 5m breaks (automated timer in scripts/pomodoro.sh)
• Flashcards: Anki-compatible deck in flashcards/
• Active Recall: Assessment questions at end of each hour

This course aligns with:

• ✅ CKA (Certified Kubernetes Administrator) - Networking domain (20%)
• ✅ CKAD (Certified Kubernetes Application Developer) - Services & Networking (20%)
• ✅ CKS (Certified Kubernetes Security Specialist) - NetworkPolicies (15%)

Quick reference for all essential commands and patterns: CHEATSHEET.md

Complete practical exam in final-assessment/ includes:

• Multi-tier application deployment
• Full networking stack (Services, Ingress, NetworkPolicies)
• Debugging scenario
• Grading rubric (pass: 75/100)

k8s-networking-24h/
├── README.md                    # This file
├── setup.sh                     # One-command setup script
├── CHEATSHEET.md               # One-page reference
├── COMPRESSED-12H.md           # 12-hour priority track
├── hour-01/                    # Hour 1: Pod Network Fundamentals
│   ├── README.md
│   ├── lab.sh
│   ├── manifests/
│   └── assessment.md
├── hour-02/                    # Hour 2: CNI Plugins
│   ├── README.md
│   ├── lab.sh
│   ├── manifests/
│   └── assessment.md
├── [hour-03 through hour-24]/  # Similar structure
├── final-assessment/           # Hour 24 comprehensive exam
│   ├── README.md
│   ├── scenario.md
│   ├── rubric.md
│   └── solution/
├── flashcards/                 # Anki-compatible flashcards
│   ├── deck.txt
│   └── import-instructions.md
├── scripts/                    # Utility scripts
│   ├── pomodoro.sh
│   ├── check-progress.sh
│   └── reset-cluster.sh

Found an issue or want to improve a lab? Contributions welcome!

1. Fork the repository
2. Create a feature branch (git checkout -b feature/improved-lab)
3. Commit changes (git commit -am 'Improve Hour 5 lab')
4. Push to branch (git push origin feature/improved-lab)
5. Open a Pull Request

MIT License - See LICENSE for details

• Official Kubernetes documentation
• CNCF Kubernetes Networking SIG
• Calico, Cilium, and Flannel communities
• NetworkPolicy recipes by @ahmetb

• Issues: GitHub Issues for bugs/questions
• Discussions: GitHub Discussions for general help
• Community: Join CKNE - Certified Kubernetes Networking Engineeer Community in KubeSkills

Prerequisites → Hours 1-4 (Fundamentals) → Hours 5-8 (Services & Policies)
     ↓
Hour 9 (Review) → Hours 10-12 (Deep Dive) → Hours 13-16 (Advanced)
     ↓
Hours 17-20 (Production) → Hours 21-23 (Troubleshooting & Review)
     ↓
Hour 24 (Final Assessment) → Mastery! 🎉

Ready to start? Run ./setup.sh and begin with Hour 1!

⭐ If this helps you, please star the repository!