Kubernetes kubectl commands

Kubernetes provides a command line tool for communicating with a Kubernetes cluster's control plane, using the Kubernetes API.

This tool is named kubectl. kubectl link

Below list most useful Helm Commands for reference.

1. kubectl get

Use get to pull a list of resources you have currently on your cluster. The types of resources you can get include:

• Namespace
• Pod
• Node
• Deployment
• Service
• ReplicaSets

kubectl get ns
kubectl get pods -n kube-system
kubectl get nodes
kubectl get services

2. kubectl describe

Describe shows the details of the resource you're looking at.

Resources you can describe include:

• Nodes
• Pods
• Services
• Deployments
• Replica sets

kubectl describe pods my-pods -n kube-system

kubectl describe servcies my-services -n kube-system

3. kubectl logs

logs offer detailed insights into what's happening inside Kubernetes in relation to the pod.

kubectl logs my-pod -n kube-system

4. kubectl exec

exec into a container to troubleshoot an application directly.

kubectl exec -it my-pod -n kube-system /bin/bash

5. kubectl cp

This command is for copying files and directories to and from containers, much like the Linux cp command. The syntax follows a kubectl cp format:

kubectl cp commands_copy.txt charts/cherry-chart-88d49478c-dmcfv:commands.txt

kubectl cheat sheet

PDF link