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Challenges

This 20-day tutorial will guide you through the exciting world of Kubernetes, from its fundamental concepts to advanced topics like multi-cluster management. Each day includes explanations, practical examples, and challenges to solidify your understanding. All hands-on examples will primarily use Kind (Kubernetes in Docker) for local cluster creation and management.

Target Audience:

This tutorial is for developers, operations engineers, and anyone interested in understanding and working with Kubernetes. Basic familiarity with Linux command line and Docker concepts is beneficial but not strictly required.

Prerequisites:

  • A computer with internet access.
  • A text editor (VS Code, Sublime Text, etc.).
  • A stable internet connection.
  • Docker Desktop installed and running: Kind uses Docker to run Kubernetes nodes.
  • Kind CLI installed: Follow official instructions (e.g., go install sigs.k8s.io/kind@v0.22.0).
  • kubectl installed: Follow official instructions (e.g., brew install kubectl on macOS).
  • helm CLI installed: (Will be covered in detail on Day 15).
  • git installed: For GitOps examples.

Overview

Week 1: Kubernetes & Kind Fundamentals (Day 1 - 7)

Day Description
Day 01 Introduction to Containerization & Kind Cluster Setup
Day 02 kubectl Basics and Pods
Day 03 Deployments and ReplicaSets
Day 04 Kubernetes Networking Fundamentals & Services
Day 05 Namespaces and Resource Management
Day 06 ConfigMaps and Secrets
Day 07 Persistent Storage (Kind-Specific Considerations)

Week 2: Advanced Kubernetes Concepts (Day 8 - 14)

Day Description
Day 08 DaemonSets and Jobs/CronJobs
Day 09 Ingress: External Access with Routing (Kind-specific)
Day 10 Liveness and Readiness Probes
Day 11 StatefulSets for Stateful Applications
Day 12 Role-Based Access Control (RBAC)
Day 13 Horizontal Pod Autoscaler (HPA)
Day 14 Resource Management Review & Troubleshooting Basics

Week 3: Helm & MultiCluster (Day 15 - 20)

Day Description
Day 15 Helm: The Kubernetes Package Manager
Day 16 Creating Custom Helm Charts
Day 17 Introduction to Multi-Cluster Kubernetes with Kind
Day 18 Advanced Kubernetes Networking: CNI Deep Dive & Multi-Cluster Considerations
Day 19 Custom Resource Definitions (CRDs) & Operators
Day 20 Kubernetes Security, Monitoring & Next Steps

Notes for Your Journey:

  • Clean Up: After each day or week, remember to clean up your Kind cluster or specific resources to avoid resource conflicts or excessive Docker resource consumption.
    • kubectl delete -f <your-file.yaml>
    • helm uninstall <release-name>
    • kind delete cluster --name <cluster-name>
  • Persistent Learning: Kubernetes is vast and constantly evolving. This tutorial provides a strong foundation, but continuous learning through documentation, blogs, and community engagement is vital.
  • Troubleshooting is a Skill: The more you debug, the better you become. Don't be discouraged by errors; they are learning opportunities.

Final ToDo

Post about your journey, what you learned on different platforms like LinkedIn, Twitter or any other of your favourite platforms. Follow up on your journey and share it with others! Use the Hashtags #NetAutoBootcamp #NetworkAutomation You can also tag us on LinkedIn with @netauto-group-rheinmain

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