Kubernetes Deployment: A Practical Guide

Kubernetes is a powerful platform for container orchestration. Learn how to deploy applications effectively.

Prerequisites

• Docker installed
• Basic understanding of containers
• kubectl installed

Creating a Deployment

Define your deployment in a YAML file:

yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: my-app
spec:
  replicas: 3
  selector:
    matchLabels:
      app: my-app
  template:
    metadata:
      labels:
        app: my-app
    spec:
      containers:
      - name: my-app
        image: my-app:latest
        ports:
        - containerPort: 8080

Deploying to Kubernetes

Apply your deployment:

bash
kubectl apply -f deployment.yaml

Scaling

Scale your deployment:

bash
kubectl scale deployment my-app --replicas=5

Monitoring

Use kubectl commands to monitor your deployment:

bash
kubectl get pods
kubectl logs deployment/my-app

Conclusion

Kubernetes provides powerful capabilities for deploying and managing containerized applications. Start simple and gradually adopt more advanced features.