# 🚀 DevOps Journey — Week 14: **Kubernetes Scaling & Automation**

In my DevOps Journey Week 14, I moved from Docker & Compose into the world of Kubernetes.

This was a huge milestone: learning how to handle scaling, automation, and thousands of users without downtime.

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🔹 Step 1: Docker Networking

Before K8s, I explored Docker networking:

• Bridge → local isolated communication
• Host → container shares host’s network
• Overlay → multi-host (Swarm, cluster setups)

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🔹 Step 2: Docker Compose

Next, I practiced multi-service apps:

yaml
version: "3.9"
services:
  web:
    image: nginx
  db:
    image: mysql:5.7
With a single command:

bash
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docker-compose up -d
This was enough for small dev projects.

🔹 Step 3: Kubernetes — the Game Changer
Here’s where Week 14 really leveled up.
Kubernetes gave me:

Scaling → add more pods instantly.

Self-healing → crashed pods restart automatically.

Rolling updates → zero downtime deploys.

Load balancing → spread traffic across pods.

Commands I used:
bash
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kubectl create deployment web --image=nginx
kubectl expose deployment web --type=NodePort --port=80
kubectl scale deployment web --replicas=5
kubectl get pods
🔥 Reflection
Docker was my foundation.

Docker Compose gave me small multi-service apps.

But Kubernetes unlocked production-level orchestration.

This week felt like moving from “developer” → “DevOps engineer.”

#devops #docker #kubernetes #devto #devopsjourney