Kubernetes-EKS-Zero-to-Hero

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Kubernetes-EKS-Zero-to-Hero

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This repository is a comprehensive learning resource for students and professionals learning Kubernetes, labs on AWS EKS

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# Kubernetes — Zero to Hero

### 🚀 A comprehensive, hands-on Kubernetes learning resource — from core concepts to production-grade EKS deployments.

</div>

---

## 📖 About This Repository

**Kubernetes Zero to Hero** is a structured, project-based learning repository designed to take you from knowing nothing about Kubernetes to confidently deploying, managing, and scaling containerized applications in real-world cluster environments.

Every section is organized into its own folder with a dedicated `README.md` containing in-depth explanations, YAML manifests, diagrams, and hands-on examples. The content progresses logically — from foundational concepts to advanced topics like RBAC, autoscaling, and GitOps.

By the end of this course, you will be able to:

- ✅ Understand Kubernetes architecture and core resource types
- ✅ Deploy and manage stateless and stateful applications
- ✅ Configure networking, ingress, and service discovery
- ✅ Manage persistent storage with PVs, PVCs, and StorageClasses
- ✅ Implement autoscaling, resource management, and pod scheduling policies
- ✅ Secure clusters using RBAC and Admission Controllers
- ✅ Run production workloads on AWS EKS
- ✅ Package and deploy applications with Helm

---

## 📚 Table of Contents

| # | Topic | Description |
|---|-------|-------------|
| 01 | [Kubernetes Distributions](./Kubernetes-Distributions/) | Deep dive into Amazon EKS and Red Hat OpenShift — managed Kubernetes platforms |
| 02 | [Introduction to K8s](./Introduction%20to%20K8s/) | Core concepts, architecture, and fundamental components — the ideal starting point |
| 03 | [Pods and Cluster Networking](./Pods%20and%20Cluster%20Networking/) | Pods as the smallest deployable unit, internal networking, and Pod communication |
| 04 | [ReplicaSets](./Replicasets/) | Ensuring a specified number of Pod replicas are always running — high availability basics |
| 05 | [Deployments](./Deployment/) | Managing rollouts and rollbacks for stateless applications |
| 06 | [Probes](./Probes/) | Liveness, readiness, and startup probes for container health checking |
| 07 | [Service (svc)](./Service%20(svc)/) | ClusterIP, NodePort, and LoadBalancer — making applications discoverable and accessible |
| 08 | [Namespace, Secrets & ConfigMaps](./Namespace-Secrets-ConfigMaps/) | Organizing workloads and managing application configuration and sensitive data |
| 09 | [Ingress Resource](./Ingress%20Resource/) | HTTP/HTTPS routing, SSL/TLS termination, and host/path-based traffic rules |
| 10 | [PV, PVC & StorageClass](./Persistant%20Volume%20and%20PVC/) | Persistent storage, volume claims, and dynamic provisioning |
| 11 | [Resource Management & ResourceQuota](./Resource%20Management%20and%20Resource%20Quota/) | Controlling pod resource usage and namespace-level allocation limits |
| 12 | [Node Selector & Node Affinity](./Node%20Selector%20and%20Node%20Affinity/) | Controlling where Pods are scheduled based on node labels and rules |
| 13 | [Pod Affinity and Antiaffinity](./Pod%20Affinity%20&%20AntiAffinity/) | Spreading Pods across nodes to avoid co-location and improve resilience |
| 14 | [Taints & Tolerations](./Taint%20and%20Tolerations/) | Advanced node-level access control — restricting which Pods can run on which nodes |
| 15 | [Horizontal Pod Autoscaler (HPA)](./HPA/) | Automatically scaling Pod count based on CPU, memory, or custom metrics |
| 16 | [Vertical Pod Autoscaler (VPA)](./VPA/) | Automatically adjusting container resource requests and limits based on usage |
| 17 | [DaemonSets](./Daemonsets/) | Ensuring a Pod runs on every node — ideal for logging, monitoring, and networking agents |
| 18 | [StatefulSets](./Statefulsets/) | Managing stateful applications with stable identities and persistent storage per Pod |
| 19 | [RBAC](./RBAC/) | Role-Based Access Control — defining who can perform what actions on which resources |
| 20 | [CertManager and Certification management](./Certification%20Management/) | Certmanager integration ,types of cluster certificates and their uses |
| 21 | [Admission Controllers](./Admission%20Controller/) | API server gatekeepers that enforce policies before objects are persisted |
| 22 | [Jobs & CronJobs](./Jobs%20and%20Cronjobs/) | Running finite tasks to completion and scheduling recurring workloads |
| 23 | [HELM](./HELM/) | Kubernetes package manager — templating, packaging, and managing application releases |

---

## 🧪 EKS Hands-On Labs

This repository includes **hands-on labs** that apply the concepts above using **AWS EKS** — a production-grade managed Kubernetes service.

| # | Lab | Description |
|---|-----|-------------|
| 01 | [EKS Cluster Setup](./EKS%20HANDS-ON/EKS-CLUSTER-SETUP/) | Provision and configure an EKS cluster from scratch |
| 02 | [EKS NodePort](./EKS%20HANDS-ON/EKS-Nodeport/) | Expose a service using NodePort on EKS worker nodes |
| 03 | [Classical Load Balancer](./EKS%20HANDS-ON/Classical-LoadBalancer/) | Attach an AWS Classic Load Balancer to a Kubernetes service |
| 04 | [Network Load Balancer](./EKS%20HANDS-ON/Network-LoadBalancer/) | High-performance L4 load balancing using AWS NLB |
| 05 | [Ingress with ALB](./EKS%20HANDS-ON/INGRESS-ALB/) | HTTP routing using AWS Application Load Balancer and Ingress |
| 06 | [StatefulSet with Dynamic PV & PVC](./EKS%20HANDS-ON/Statefulset%20with%20Dynamic%20PV/) | Dynamic storage provisioning for stateful applications on EKS |
| 07 | [HPA with Taint & Toleration](./EKS%20HANDS-ON/HPA%20with%20Taint%20and%20Tolerance/) | Combine horizontal autoscaling with advanced pod scheduling |

---

## 🔗 Related Repositories

### ArgoCD — GitOps for Kubernetes

Argo CD enables **GitOps-based deployment** — applications are automatically synchronized from Git to the cluster, ensuring consistency and reliable continuous delivery without manual `kubectl apply` steps.

📦 **[ArgoCD Zero to Hero →](https://github.com/bhuvan-raj/ArgoCD-Zero-to-Hero.git)**

---

### Prometheus & Grafana — Cluster Monitoring

Learn how to implement **production-grade monitoring** using Prometheus for metrics collection and Grafana for custom dashboard visualization across your Kubernetes workloads.

📦 **[Prometheus and Grafana →](https://github.com/bhuvan-raj/Prometheus-and-Grafana.git)**

---
### Grafana Loki & Alloy — Centralized Logging

Learn how to implement centralized logging using Grafana Alloy for log collection and processing, Grafana Loki for scalable log aggregation, and Grafana for log visualization and analysis across your infrastructure and Kubernetes workloads.

📦 **[Loki and Grafana Alloy →](https://github.com/bhuvan-raj/Grafana-Loki-and-Alloy-Zero-to-Hero.git)**

---
### PagerDuty — Incident Management for DevOps

PagerDuty enables **real-time incident management and on-call automation** — helping DevOps teams manage alerts, incidents, on-call schedules, escalation policies, and production incident response workflows.

📦 **[PagerDuty Zero to Hero →](https://github.com/bhuvan-raj/PagerDuty-Zero-to-Hero.git)**

### Kyverno — Policy as Code for Kubernetes

Kyverno enables **Policy as Code for Kubernetes** — policies can be used to validate, mutate, and enforce security and compliance rules across Kubernetes resources without requiring a separate policy language.

📦 **[Kyverno Zero to Hero →](https://github.com/bhuvan-raj/Kyverno-Zero-to-Hero.git)**

---
### KubeArmor — Runtime Security for Kubernetes

KubeArmor provides **runtime security enforcement for Kubernetes** — helping protect workloads and nodes by controlling process execution, file access, networking operations, and other runtime behaviors using Linux security mechanisms.

📦 **[KubeArmor Zero to Hero →](https://github.com/bhuvan-raj/KubeArmor-Zero-to-Hero.git)**

---

## 🛠️ Prerequisites

Before getting started, make sure you have the following:

| Tool | Purpose |
|------|---------|
| A running Kubernetes cluster | Minikube, Kind, Docker Desktop, or AWS EKS |
| `kubectl` | Command-line tool configured to connect to your cluster |
| `aws cli` + `eksctl` | Required for EKS hands-on labs |
| `helm` | Required for the HELM module |
| An Ingress Controller | e.g., Nginx Ingress Controller — required for Ingress examples |
| `oc` CLI | Required only for OpenShift examples in the Distributions section |

---

## 🚦 Getting Started

```bash
# Clone this repository
git clone https://github.com/bhuvan-raj/Kubernetes-Zero-to-Hero.git

# Navigate into the project
cd Kubernetes-Zero-to-Hero

# Start with the Introduction
cd "Introduction to K8s"
```

Each folder contains its own `README.md` with step-by-step instructions, YAML manifests, and explanations. Work through the topics in order for the best learning experience.

---

## 🤝 Contributing

Contributions are welcome! If you have suggestions for improvements, new examples, or find any issues, feel free to open an issue or submit a pull request.

---

## 📄 License

This project is licensed under the MIT License. See the [LICENSE](./LICENSE) file for details.

---

**Happy Orchestrating! ☸️**

*If this repo helped you, please consider giving it a ⭐*

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