Kubernetes Simulation from Scratch: Learn Kubernetes Internals

Gulshan Kumar

1 April 2026

Stop just using Kubernetes. Start understanding it. 🏗️

Over the past few days, I built a production-style Kubernetes simulation from scratch, and it’s now live on GitHub. 🚀

Most tutorials show how to run a simple `kubectl apply`, but they rarely explain the “why” behind Kubernetes architecture. This project focuses on understanding how things actually work under the hood by building a full environment that mirrors a real-world bare-metal Kubernetes setup.

What’s inside the project?

Microservices – Node.js APIs for User & Product management

Stateful Workloads – MongoDB deployed using StatefulSets with persistent storage

Full Observability – ELK Stack (Elasticsearch, Logstash, Kibana) with Filebeat for centralized logging

Advanced Networking – NGINX Ingress Controller & MetalLB for real-world load balancing

Security – Zero-Trust model using NetworkPolicies & RBAC

Cloud → Kubernetes Terminology Mapping

If you're coming from AWS or GCP, this repo also includes a Cloud-to-K8s translation guide:

Cloud ServiceKubernetes Equivalent ECS TaskPod Application Load BalancerIngress Target GroupService VPCNamespace

The goal was to bridge the gap between cloud services and Kubernetes internals and create something that engineers can actually learn from.

If you're learning Kubernetes or want a hands-on environment to explore real concepts, feel free to check it out!

🔗 GitHub Repository: [https://lnkd.in/grhN72dT](https://lnkd.in/grhN72dT)

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