Top 10 kubectl commands every Kubernetes user should know

Are you a Kubernetes user looking to improve your command line skills? Look no further! In this article, we'll be discussing the top 10 kubectl commands every Kubernetes user should know.

But first, let's talk about what kubectl is. Kubectl is a command line tool used to interact with Kubernetes clusters. It allows users to deploy, inspect, and manage Kubernetes resources.

Now, without further ado, let's dive into the top 10 kubectl commands every Kubernetes user should know.

1. kubectl get

The kubectl get command is used to retrieve information about Kubernetes resources. It can be used to get information about pods, services, deployments, and more.

For example, to get information about all the pods in a namespace, you can run:

kubectl get pods -n <namespace>

This will return a list of all the pods in the specified namespace along with their status, age, and other relevant information.

2. kubectl describe

The kubectl describe command is used to get detailed information about a specific Kubernetes resource. It can be used to get information about pods, services, deployments, and more.

For example, to get detailed information about a specific pod, you can run:

kubectl describe pod <pod-name> -n <namespace>

This will return detailed information about the specified pod, including its status, events, and more.

3. kubectl apply

The kubectl apply command is used to apply changes to Kubernetes resources. It can be used to create, update, or delete resources.

For example, to create a new deployment, you can run:

kubectl apply -f <deployment-file.yaml>

This will create a new deployment based on the specifications in the specified YAML file.

4. kubectl logs

The kubectl logs command is used to retrieve the logs of a specific container in a pod.

For example, to get the logs of a container in a pod, you can run:

kubectl logs <pod-name> -c <container-name> -n <namespace>

This will return the logs of the specified container in the specified pod.

5. kubectl exec

The kubectl exec command is used to execute a command in a specific container in a pod.

For example, to execute a command in a container in a pod, you can run:

kubectl exec <pod-name> -c <container-name> -n <namespace> -- <command>

This will execute the specified command in the specified container in the specified pod.

6. kubectl port-forward

The kubectl port-forward command is used to forward a local port to a port on a specific pod.

For example, to forward port 8080 on your local machine to port 80 on a specific pod, you can run:

kubectl port-forward <pod-name> 8080:80 -n <namespace>

This will forward port 8080 on your local machine to port 80 on the specified pod.

7. kubectl delete

The kubectl delete command is used to delete Kubernetes resources. It can be used to delete pods, services, deployments, and more.

For example, to delete a specific deployment, you can run:

kubectl delete deployment <deployment-name> -n <namespace>

This will delete the specified deployment.

8. kubectl rollout

The kubectl rollout command is used to manage rollouts of Kubernetes resources. It can be used to manage rollouts of deployments, daemonsets, and more.

For example, to view the status of a deployment rollout, you can run:

kubectl rollout status deployment/<deployment-name> -n <namespace>

This will show the status of the specified deployment rollout.

9. kubectl scale

The kubectl scale command is used to scale Kubernetes resources. It can be used to scale deployments, replica sets, and more.

For example, to scale a deployment to 3 replicas, you can run:

kubectl scale deployment <deployment-name> --replicas=3 -n <namespace>

This will scale the specified deployment to 3 replicas.

10. kubectl label

The kubectl label command is used to add or remove labels from Kubernetes resources.

For example, to add a label to a specific pod, you can run:

kubectl label pod <pod-name> <label-key>=<label-value> -n <namespace>

This will add the specified label to the specified pod.

And there you have it, the top 10 kubectl commands every Kubernetes user should know. With these commands in your arsenal, you'll be able to deploy, manage, and troubleshoot Kubernetes resources like a pro.

Happy kubectl-ing!

Editor Recommended Sites