cheatsheets/kubernetes-cheatsheet.md

Kubernetes Cheatsheet

Basics

• Get cluster info: kubectl cluster-info
• Get nodes: kubectl get nodes
• Get pods: kubectl get pods
• Get all resources: kubectl get all

Contexts and Config

• View config: kubectl config view
• Set context: kubectl config use-context <context-name>
• Set namespace: kubectl config set-context --current --namespace=<namespace>

Pods

• Create pod: kubectl run <pod-name> --image=<image>
• Describe pod: kubectl describe pod <pod-name>
• Exec into pod: kubectl exec -it <pod-name> -- /bin/sh
• Logs: kubectl logs <pod-name>
• Delete pod: kubectl delete pod <pod-name>

Deployments

• Create deployment: kubectl create deployment <name> --image=<image>
• Get deployments: kubectl get deployments
• Scale: kubectl scale deployment <name> --replicas=<num>
• Update image: kubectl set image deployment/<name> <container>=<new-image>
• Delete: kubectl delete deployment <name>

Services

• Expose deployment: kubectl expose deployment <name> --type=NodePort --port=80
• Get services: kubectl get services
• Describe service: kubectl describe service <name>
• Delete service: kubectl delete service <name>

Namespaces

• Create namespace: kubectl create namespace <name>
• Get namespaces: kubectl get namespaces
• Delete namespace: kubectl delete namespace <name>

Apply YAML

• Apply file: kubectl apply -f <file.yaml>
• Delete from file: kubectl delete -f <file.yaml>

Other

• Port forward: kubectl port-forward <pod> 8080:80
• Get events: kubectl get events
• Proxy API: kubectl proxy

For more, refer to official docs: https://kubernetes.io/docs/