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Removing the Resources and Exploring the Effects

Removing the Resources and Exploring the Effects

In this lesson, we will play around with the deployment by removing the created resources and exploring the effects of removal.

Deleting the Deployment

Let’s delete the jenkins Deployment.

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kubectl --namespace jenkins delete \
    deploy jenkins

The output shows us that the deployment "jenkins" was deleted.

Did anything happen with the PersistentVolumeClaim and the PersistentVolume?

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kubectl --namespace jenkins get pvc
kubectl get pv

The combined output of both commands is as follows.

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NAME    STATUS VOLUME        CAPACITY ACCESS MODES STORAGECLASS   AGE
jenkins Bound  manual-ebs-02 5Gi      RWO          manual-ebs     57s
NAME          CAPACITY ACCESS MODES RECLAIM POLICY STATUS    CLAIM           STORAGECLASS REASON AGE
manual-ebs-01 5Gi      RWO          Retain         Available jenkins/jenkins manual-ebs          10m
manual-ebs-02 5Gi      RWO          Retain         Bound     jenkins/jenkins manual-ebs          10m
manual-ebs-03 5Gi      RWO          Retain         Available jenkins/jenkins manual-ebs          10m

Even though we removed Jenkins Deployment and, with it, the Pod that used the claim, both the PersistentVolumeClaim and PersistentVolumes are intact. The manual-ebs-01 volume is still bound to the jenkins claim.

Deleting the PersistentVolumeClaim

What would happen if we remove the PersistentVolumeClaim jenkins?

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kubectl --namespace jenkins \
    delete pvc jenkins

The output ...

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