Commands

kubectl rollout undo deployment/<name>

kubectl rollout undo deployment/<name> [--to-revision=n]

Risk: Careful

What it does

Goes back to the previous pod template, with a rolling update.

When to use it

A new version is broken: undo fast, then fix calmly.

Example

$ kubectl rollout undo deployment/shop

Learn it in: Rolling updates and rollout undo · Official docs