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kuberneteskubectl

How to know more details about a previous rollout revision using kubectl?

There are commands given here which explain how to perform a rollback using kubectl. One that lists the previous versions of your deployment is:

kubectl rollout history deployment/myDeployment

This shows a list of previous versions based on their order and just their corresponding numbers. But how to know more details about them? It is hard to know which version I am rolling back to by just looking at a number.

Solution

  • You can use the revision flag to get more information:

    kubectl rollout history deployment/<Deployment-name> --revision=<revision-number>

    This will give you details about the Pod Template used in the specified revision number.

    If you want the date on which the revision was deployed, use the -o yaml flag and check for creationTimestamp

    kubectl rollout history deployment/<Deployment-name> --revision=<revision-number> -o yaml