kubectl cheet sheet, useful cheet

출처 : https://kubernetes.io/docs/reference/kubectl/cheatsheet/

kubectl Cheat Sheet

 

ㅁ Pod/Deploy 사용중인 이미지 조회 (  Pod/Deploy's image tag) 

## Pod별 
kubectl get pod -n kube-system -o=custom-columns=podname:metadata.name,namespace:metadata.namespace,image:spec.containers..image

## deploy 별
#여러줄
kubectl get deploy -n kube-system --no-headers -o=custom-columns\
=deployname:metadata.name,name-space:metadata.namespace,\
image:.spec.template..spec.containers..image

## deploy 별
#한줄
kubectl get deploy -n kube-system --no-headers -o=custom-columns=deployname:metadata.name,name-space:metadata.namespace,image:.spec.template..spec.containers..image

## daemonset

 

ㅁ Header 제거 ( no-headers) 

kubectl get ns --output=custom-columns=:.metadata.name --no-headers

ㅁ  pod 시작시간 정렬 (sort by pod's startTime) 

kubectl get pod -A --sort-by=.status.startTime

ㅁ node,ip hostname ( k8s nodes' ip/hostname)

kubectl get nodes -o jsonpath='{.items[*].status.addresses[*].address}'

 

ㅁ secret의 base64 decode 

kubectl -n kubernetes-dashboard get secret dashboard-admin-secret -o go-template="{{.data.token | base64decode}}"