Overview
Kubernetes is an open-source container orchestration platform for automating application deployment.
Why It Matters
Kubernetes automates deployment, scaling, and management of containerized applications.
Essential Commands
kubectl get pods -AList pods in all namespaces
kubectl apply -f deployment.yamlCreate or update resources from manifest
kubectl describe pod <pod-name>Show detailed pod diagnostics
kubectl logs -f <pod-name>Stream logs from a pod
kubectl rollout status deployment/<name>Check deployment rollout progress
kubectl port-forward svc/<name> 8080:80Forward local port to service
Quick Start
Master understand pods, services, and deployments first
Key Concepts
Understand pods, services, and deployments
Master ConfigMaps and Secrets
Learn rolling updates and scaling
Pro Tips
- Combine multiple commands for powerful workflows
- Use aliases to speed up your command entry
- Create scripts to automate repetitive tasks
Common Pitfalls to Avoid
- • Forgetting to check the documentation for edge cases
- • Running commands without understanding their full impact
- • Not testing changes in a safe environment first