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Kubernetes is a powerful container orchestration platform that automates the deployment, scaling, and management of containerized applications. The primary command-line tool for interacting with Kubernetes clusters is kubectl. Here are some essential kubectl commands to help you manage your Kubernetes environment effectively.
Common Commands
Run a two-replica nginx deployment: kubectl run my-nginx --image=nginx --replicas=2 --port=80
List all nodes and pods: kubectl get pod -o wide
Get all resources in all namespaces: kubectl get all --all-namespaces
Check Performance
Node resource usage: kubectl top node
Pod resource usage: kubectl top pod
Label & Annotation
Add a label to a pod: kubectl label pods <podname> owner=gfg
Remove a label from a pod: kubectl label pods <podname> owner-
Secrets
List all secrets: kubectl get secrets --all-namespaces
Get a specific secret: kubectl get secret <secret-name>
Services
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