https://www.youtube.com/c/techworld-with-nana

Certainly! Here are 50 commonly used Kubernetes (K8s) commands along with brief explanations for each:

1. kubectl create deployment <name> --image=<image>: Create a deployment using a specified container image.

2. kubectl get pods: List all pods in the current namespace.

3. kubectl describe pod <pod-name>: Show detailed information about a specific pod.

4. kubectl get svc: List all services in the current namespace.

5. kubectl expose deployment <name> --port=<port>: Create a new service and expose it.

6. kubectl scale deployment <name> --replicas=<count>: Scale the number of replicas for a deployment.

7. kubectl get nodes: List all nodes in the cluster.

8. kubectl get deployments: List all deployments in the current namespace.

9. kubectl get configmaps: List all config maps in the current namespace.

10. kubectl get secrets: List all secrets in the current namespace.

11. kubectl create configmap <name> --from-file=<path/to/file>: Create a config map from a file.

12. kubectl create secret generic <name> --from-literal=<key>=<value>: Create a secret with a literal value.

13. kubectl apply -f <yaml-file>: Apply a configuration file to create or update resources.

14. kubectl delete <resource> <name>: Delete a specific resource.

15. kubectl get ingress: List all ingresses in the current namespace.

16. kubectl describe ingress <name>: Show detailed information about a specific ingress.

17. kubectl logs <pod-name>: View the logs of a specific pod.

18. kubectl exec -it <pod-name> -- /bin/bash: Start an interactive shell in a pod.

19. kubectl get namespaces: List all namespaces in the cluster.

20. kubectl create namespace <name>: Create a new namespace.

21. kubectl delete namespace <name>: Delete a namespace and all its resources.

22. kubectl get events: List cluster events.

23. kubectl rollout status deployment/<name>: Check the status of a deployment rollout.

24. kubectl rollout history deployment/<name>: View rollout history for a deployment.

25. kubectl edit <resource> <name>: Edit a resource using the default editor.

26. kubectl apply -f <url>: Apply a configuration file from a URL.

27. kubectl get pods -n <namespace>: List pods in a specific namespace.

28. kubectl exec -it <pod-name> -n <namespace> -- /bin/bash: Start an interactive shell in a pod in a specific namespace.

29. kubectl port-forward <pod-name> <local-port>:<remote-port>: Forward ports from a pod to your local machine.

30. kubectl label <resource> <name> <key>=<value>: Add a label to a resource.

31. kubectl annotate <resource> <name> <key>=<value>: Add an annotation to a resource.

32. kubectl get componentstatuses: List the health of various cluster components.

33. kubectl get pods -o wide: List pods with additional information, including node names.

34. kubectl describe node <node-name>: Show detailed information about a specific node.

35. kubectl get pvc: List all persistent volume claims.

36. kubectl get pv: List all persistent volumes.

37. kubectl delete pvc <pvc-name>: Delete a persistent volume claim.

38. kubectl apply -f <directory>: Apply all configuration files in a directory.

39. kubectl top pods: Show CPU and memory usage of pods.

40. kubectl rollout restart deployment/<name>: Restart a deployment.

41. kubectl apply -f <yaml-file> --dry-run=client: Check a configuration file for syntax errors without applying it.

42. kubectl describe service <service-name>: Show detailed information about a service.

43. kubectl get endpoints: List endpoints for services.

44. kubectl taint nodes <node-name> <key>=<value>:<effect>: Add a taint to a node.

45. kubectl uncordon <node-name>: Remove a node from "cordoned" state.

46. kubectl create role <name> --resource=<resource> --verb=<verb>: Create a role.

47. kubectl create rolebinding <name> --role=<role> --user=<user>: Create a role binding.

48. kubectl drain <node-name>: Safely evict all pods from a node.

49. kubectl apply -f <yaml-file> --validate=false: Apply a configuration file, skipping validation.

50. kubectl proxy: Start a proxy to access the Kubernetes API.

These commands cover a wide range of common Kubernetes operations. Be sure to replace <name>, <image>, <pod-name>, <port>, <resource>, <yaml-file>, <key>, <value>, <url>, <namespace>, <local-port>, <remote-port>, <node-name>, <pvc-name>, <service-name>, <role>, <user>, <effect>, and <directory> with appropriate values as needed in your environment.