How do you initiate a rollback for an application?

1.	How do you initiate a rollback for an application?
Answer» Rollback and rolling updates are a feature of Deployment object in the Kubernetes. We do the Rollback to an earlier Deployment revision if the CURRENT state of the Deployment is not stable due to the application code or the configuration. Each rollback updates the revision of the Deployment ○ → kubectl get deploy NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE nginx 1 1 1 1 15h○ → kubectl rollout history deploy nginx deployment.extensions/nginx REVISION CHANGE-CAUSE 1 <none> 2 <none>kubectl undo deploy <deploymentname>○ → kubectl rollout undo deploy nginx deployment.extensions/nginx○ → kubectl rollout history deploy nginx deployment.extensions/nginx REVISION CHANGE-CAUSE 2 <none> 3 <none> We can ALSO check the history of the changes by the below command kubectl rollout history deploy <deploymentname>

Answer»

Rollback and rolling updates are a feature of Deployment object in the Kubernetes. We do the Rollback to an earlier Deployment revision if the CURRENT state of the Deployment is not stable due to the application code or the configuration. Each rollback updates the revision of the Deployment

○ → kubectl get deploy NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE nginx 1 1 1 1 15h○ → kubectl rollout history deploy nginx deployment.extensions/nginx REVISION CHANGE-CAUSE 1 <none> 2 <none>kubectl undo deploy <deploymentname>○ → kubectl rollout undo deploy nginx deployment.extensions/nginx○ → kubectl rollout history deploy nginx deployment.extensions/nginx REVISION CHANGE-CAUSE 2 <none> 3 <none>

We can ALSO check the history of the changes by the below command

kubectl rollout history deploy <deploymentname>

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