Kubectl Commands

Create a resource from a file or from stdin.

$ kubectl create -f FILENAME

Command to check the kubernetes nodes:

$ kubectl status nodes

You can check the events in case container creation is being delayed.

$ kubectl get events

To get list of services running

$ kubectl get svc

Cluster Introspection:

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# Get version information

$ kubectl version

# Get cluster information

$kubectl cluster-info

# Get the configuration

$ kubectl config view

# Output information about a node

$ kubectl describe node <node>

Cron-Jobs:

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After creating the cron job, get its status using this command:

$ kubectl get cronjob <jobname>

Watch for the job to be created in around one minute:

$ kubectl get jobs --watch

When you don’t need a cron job any more, delete it with
$ kubectl delete cronjob <cronjob name>

Labels:

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kubectl get pods --show-labels

kubectl logs <podname>/<containername>

Logging:

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# Return a snapshot of the logs from pod <pod-name>.

kubectl logs <pod-name>

# Start streaming the logs from pod <pod-name>. This is similar to the 'tail -f' Linux command.

kubectl logs -f <pod-name>

kubectl logs --tail=5 <podname> -c <Container-name>

NameSpaces:

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To list namespaced objects such as our pod:

$ kubectl get pods --namespace=test

You can remove the namespace (and everything inside) with:

$ kubectl delete ns test

Describe a NAmespace:

$ kubectl describe ns default

List All namespace:

$ kubectl get ns

Draining a Node:

===============

$ kubectl drain NODE