【Kubernetes】よく使うkubectlコマンド

Kubernetes初心者です。随時追加・整理していきます。

Referrence

kubectl Cheetsheet

display list of contexts

kubectl config get-contexts

set the default context to my-cluster-name

kubectl config use-context my-cluster-name

Check pods in particular namespace.

kubectl get pods -n <namespace名>

Check all pods.

kubectl get pods -A

List all pods in the current namespace, with more details

kubectl get pods -o wide

Create pod with yaml file.

kubectl apply -f xxx.yaml

Create pod with kubectl run.

kubectl run nginx --image=nginx

Create base yaml file.

kubectl create deploy mysql --image=mysql:5.7 --dry-run=client -o yaml > file名.yaml

Create and delete namespace with only command.

kubectl create namespace <namespace名> 
kubectl delete ns <namespace名>

Keep watching the number of pods ※prerequisite: watch command must be preinstalled

watch kubectl get pod

Stream pod Logs

kubectl logs -f <pod名>

Interactive shell access to a running pod

kubectl exec -it <pod名> -- /bin/sh