The Migration Journey

Moving from Docker Compose to Kubernetes isn't just about changing tools—it's about understanding container orchestration principles.

What Docker Compose Does Well

Docker Compose is excellent for development and simple deployments:

• Easy to understand configuration
• Simple networking between services
• Quick local development setup

Kubernetes Concepts

Pods

apiVersion: v1
kind: Pod
metadata:
  name: api-service
spec:
  containers:
    - name: api
      image: my-api:latest

Deployments

apiVersion: apps/v1
kind: Deployment
metadata:
  name: api-deployment
spec:
  replicas: 3

Key Differences

1. 1Service Discovery: Kubernetes has built-in DNS
2. 2Scaling: Horizontal pod autoscaling
3. 3Rolling Updates: Zero-downtime deployments
4. 4Health Checks: Liveness and readiness probes

What I Wish I Knew Earlier

• Start with Kubernetes locally using Minikube or Docker Desktop
• Use Helm charts for complex applications
• Implement proper resource limits
• Design for failure from the start

Azure Integration

Deploying to Azure Kubernetes Service simplified infrastructure management while keeping full control over the cluster.