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Steps to Edit and Delete the Replication controller by Assistanz
Blog Cloud Computing Containers

Steps to Edit and Delete the Replication controller

In this blog, we will show you the steps to edit and delete the replication controller in the Kubernetes environment.

 

REQUIREMENTS

  • 2 Node Cluster ( 1 Master VM with 2 Nodes)
  • Kubernetes Components

 

INFRASTRUCTURE OVERVIEW

  • We have already installed and configured the 2 Node cluster in our demo environment.

 

REPLICATION CONTROLLER OVERVIEW

  • We have already created a replication controller in our environment.

Steps to Edit and Delete the Replication controller

 

  • Currently, there are four PODs available in this replication controller. It created pods on both nodes randomly.

 

EDITING REPLICATION CONTROLLER

  • Use the below command to edit the replication controller.

Syntax: kubectl edit rc <replication controller name>

Example: kubectl edit rc rep-pod

 

  • It opens in the default text editor.

 

  • We are editing the total number of replicas from 4 to 6.

 

 

  • Save and close the file.

 

  • After few minutes, we can see two new pods are in running status.

Steps to Edit and Delete the Replication controller

 

 

  • We can also scale down the PODS by editing the replication controller.

Steps to Edit and Delete the Replication controller

 

  • Now we can see the excess POD’s are terminating.

Steps to Edit and Delete the Replication controller

 

DELETING THE REPLICATION CONTROLLER

  • Use the below command to delete a replication controller.

Syntax: kubectl delete rc <replication controller name>

Example: kubectl delete rc rep-pod

Steps to Edit and Delete the Replication controller

 

  • Replication controller deleted successfully.

Steps to Edit and Delete the Replication controller

 

  • Also, there are no pods are available related to the replication controller.

Steps to Edit and Delete the Replication controller

 

DELETING REPLICATION CONTROLLER WITHOUT DELETING THE PODS

 

  • Use the below command to delete the replication controller without deleting the pods.

Syntax: kubectl delete rc <replication controller name> --cascade=false

Example: kubectl delete rc rep-pod --cascade=false

Steps to Edit and Delete the Replication controller

 

  • Command executed successfully.

Steps to Edit and Delete the Replication controller

 

  • You can see the POD’s are available after deleting the replication controller.

Steps to Edit and Delete the Replication controller

 

EXTERNAL LINKS

https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller/

VIDEO

Thanks for reading this blog. We hope it was useful for you to learn about the steps to Edit and Delete the Replication controller.

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