"--restart=Never" Still needed?

[tech2blog]

I don't think we need --restart=Never option anymore with the latest K8s version as no deployment is created when we run

kubectl run nginx --image=nginx

k8s@k8s-m:~$ kubectl run nginx --image=nginx
pod/nginx created
k8s@k8s-m:~$ kubectl get po
NAME    READY   STATUS    RESTARTS   AGE
nginx   1/1     Running   0          4s
k8s@k8s-m:~$
k8s@k8s-m:~$ kubectl get deployments.apps
No resources found in default namespace.

[nicoclau]

It was necessary for k8s lower than 1.18, not anymore. kubectl run only creates pods. For deployment do kubectl create deployment.

[shubhamrajvanshi]

Well while this is true but having restart=Never comes in handy when you are working with pods that have images like busybox, alpine etc.

[srikanthsrs]

@shubhamrajvanshi Can you expand this? Why does it come in handy when working with busybox or alpine?

[janekmichalik]

@srikanthsrs because mentioned images without i.e. sleep infinity command will exit with 0 exit code (container exits) and then will be restarted. Nginx image has infinity process running inside so it wont exit - wont be restarted (container is running)

[netserf]

If --restart=Never is only relevant to busybox and alpine pods, then shouldn't this option be removed in examples using other images such as nginx? This should help clarify usage.