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CKA study material · question 132 of 1000

A Deployment is updated again while a rollout is still in progress. What does the controller do?

  1. It rolls back to the previous revision first
  2. It queues the change until the first rollout finishes
  3. It rejects the update with a conflict
  4. It creates a further ReplicaSet and starts scaling down the one it was scaling up
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Answer: D. It creates a further ReplicaSet and starts scaling down the one it was scaling up

The controller does not wait: a new ReplicaSet is created and the previous one is added to the old list.

Source: Deployments (Kubernetes) — Rollover (aka multiple updates in-flight)

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