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Powerful kubectl Commands for Kubernetes | Manage Resources, Interact with Clusters, Debug & More

Kubectl is a powerful command-line interface for running commands against Kubernetes clusters. Below are some commonly used kubectl commands:

Please note that this is not a comprehensive list of all possible kubectl commands. Some commands may have been omitted for brevity and clarity. As always, use the kubectl –help or kubectl <command> –help command to see more details about a specific command.

  1. Basic kubectl Commands:
  • kubectl version – Print the client and server version information.
  • kubectl cluster-info – Display information about the cluster.
  • kubectl config view - Show the kubeconfig settings.
  • kubectl config use-context [context] - Switch to another kubeconfig context.
  • kubectl config current-context - Show the current context.
  • kubectl config set-context --current --namespace=[namespace] - Set a default namespace for the current context.
  1. Kubectl Commands for Interacting with Resources:
  • kubectl get [resource-type] - List resources of a specific type.
  • kubectl describe [resource-type/resource-name] - Show detailed information about a resource.
  • kubectl logs [pod-name] - Print the logs for a container in a pod.
  • kubectl exec -it [pod-name] -- [command] - Execute a command on a container in a pod.
  • kubectl port-forward [pod-name] [local-port:pod-port] - Forward a local port to a port on the pod.

Also Read: How to Set Up an EKS Cluster with eksctl command line

  1. Kubectl Commands for Managing Resources:
  • kubectl create -f [file-name.yaml] - Create a resource from a file.
  • kubectl apply -f [file-name.yaml] - Apply a configuration to a resource.
  • kubectl delete -f [file-name.yaml] - Delete a resource defined in a file.
  • kubectl delete [resource-type/resource-name] - Delete a resource.
  1. Kubectl Commands for Debugging:
  • kubectl logs -f [pod-name] - Stream pod logs.
  • kubectl exec -it [pod-name] -- /bin/bash - Start a bash session in a pod.
  • kubectl top pod [pod-name] - Show metrics for a specific pod.

Also Read: Commonly Used Docker Commands Cheat Sheet

  1. Kubectl Advanced Commands:
  • kubectl scale --replicas=[num] [resource-type/resource-name] - Scale a resource.
  • kubectl rollout status [resource-type/resource-name] - Check the status of a resource rollout.
  • kubectl rollout undo [resource-type/resource-name] - Roll back a resource to the previous version.
  • kubectl rollout history [resource-type/resource-name] - Show the history of rollouts for a resource.
  • kubectl label [resource-type/resource-name] key=value - Add a label to a resource.
  • kubectl annotate [resource-type/resource-name] key=value - Add an annotation to a resource.

Remember to replace [resource-type], [resource-name], [pod-name], [num], [file-name.yaml], [context], [namespace], [command], [local-port], and [pod-port] with appropriate values based on your specific use case.

ALSO READ  How to Set Up an EKS Cluster with eksctl command line

About Abhay Singh

I'm Abhay Singh, an Architect with 9 Years of It experience. AWS Certified Solutions Architect.

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