Explore

Kubernetes & Docker

🐳 Part 1: Docker – Containerization

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✅ Step 1: Understand the Basics

What is a container?

Difference between VM and container

Why Docker? Use-cases in dev and prod

📚 Learn:

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Docker Official Docs - Overview⁠

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YouTube:

Docker for Beginners⁠

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✅ Step 2: Install Docker

Install Docker Desktop (Windows/Mac) or Docker Engine (Linux)

🔗

Install Docker⁠

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✅ Step 3: Learn Docker CLI

bash

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docker --version

docker run hello-world

docker ps -a

docker images

docker exec -it <container> /bin/bash

🧪 Try:

bash

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docker run -d -p 8080:80 nginx

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✅ Step 4: Docker Images

Dockerfile basics

docker build

docker tag, docker push

📄 Sample Dockerfile:

Dockerfile

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FROM node:18-alpine

WORKDIR /app

COPY . .

RUN npm install

CMD ["npm", "start"]

🧪 Project: Dockerize a Node.js or Go app.

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✅ Step 5: Volumes & Networking

Bind Mount vs Volume

Docker networks (bridge, host, none)

Compose multi-container setup

📦 Practice:

yaml

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# docker-compose.yml

version: "3"

services:

web:

image: nginx

ports:

- "80:80"

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✅ Step 6: Debugging & Logs

docker logs <container>

docker inspect

docker stats

🛠️ Tools:

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Portainer⁠

– GUI for Docker

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☸️ Part 2: Kubernetes – Orchestration

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✅ Step 1: Learn Kubernetes Architecture

Master, Node, Pod, ReplicaSet, Deployment

Services: ClusterIP, NodePort, LoadBalancer

ConfigMap, Secret, Volumes

🎥

Kubernetes in 10 Minutes⁠

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✅ Step 2: Install K8s Locally

Best:

Minikube⁠

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Alternative: Docker Desktop (Kubernetes enabled)

bash

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minikube start

kubectl get nodes

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✅ Step 3: Learn kubectl Commands

bash

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kubectl get pods

kubectl apply -f deployment.yaml

kubectl describe pod <pod-name>

kubectl logs <pod-name>

📘 Use:

kubectl Cheat Sheet⁠

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✅ Step 4: Write K8s YAML Files

deployment.yaml

yaml

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apiVersion: apps/v1

kind: Deployment

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