Kubectl

Kubectl

👍 Cheatsheet

• uses curl under the hood

• kubectl [command] --help

• kubectl api-versions

• kubectl get nodes

• kubectl get all

• ⚠️ @Deprecated kubectl run

  • kubectl run ngnix-run --image=nginx

The context that kubectl uses is stored in ~/.kube/config . (kubectl config view shows parts of current configuration).

• kubectl inspect -> etcs

• kubectl logs -> pod

• kubectl exec -it -> container

Pod commands

• kubectl create -f podDefinitionFile.yaml

• kubectl delete pods [name]

• kubectl get pods [pod_name]

• kubectl get pods -o wide

Deployment commands

kubectl rollout status deployment nginx-deployment

ReplicaSet commands

k get rs -o wide

Curl

You need kubectl proxy to use curl commands. kubectl proxy --port=8001 &

Proxy takes care of TLS connection => you can use http .

Authentication/Authorization

• kubectl config specifies to which cluster to authenticate

• authorization is what this users can do

  • behind is a RBAC

  • kubectl auth can-i get prods to find out what you can do

Useful utilities

• brew install kubectx

• brew install kube-ps1