Kubectl

From John Freier
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Kubectl is an application that interacts with Kubernetes clusters.

Check the context

This checks who kubectl is connected to.

 kubectl config current-context


Apply a configuration yaml file.

 kubectl apply -f [name_of_file]

Get the configuration yaml file.

 kubectl get pod [podname]  --namespace [namespace] -o yaml


Deploy

Get Deployments

 kubectl get deployments --namespace=cs


Delete Deployments

 kubectl delete deployment [name_of_deployment] --namespace=cs


Pods

Get Pods

This gets all the pods.

 kubectl get pods --namespace cs


Delete a pod

 kubectl delete pod [pod_name]


Remote in to a pod

This will allow you to execute a command which in the example below it will start up a shell.

 kubectl exec --stdin --tty [pod_name] --namespace [namespace] -- /bin/sh


Volume

List Persistent Volumes Claims

 kubectl describe pvc --namespace=cs


Logs

Get the logs from a pod.

 kubectl logs -p [pod_name] --namespace=cs

For any sidecars you may need to specifiy a container.

   kubectl logs -p [pod_name] --namespace=cs --container gce-proxy

You can also follow the logs live with the following flaf.

 --follow

Events

Get a list of events.

 kubectl get events


Extra commands to help.

If you have to include a name space.

 --namespace scdf-jf

To be past any SSL issues.

 --insecure-skip-tls-verify