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Merge pull request #20805 from boskoop/deployment-recreate-edge-case 

Pod lifecycle edge-cases for Recreate strategy
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Kubernetes Prow Robot 2020-05-07 14:07:42 -07:00 committed by GitHub
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@ -1081,6 +1081,15 @@ the default value.
All existing Pods are killed before new ones are created when `.spec.strategy.type==Recreate`.
{{< note >}}
This will only guarantee Pod termination previous to creation for upgrades. If you upgrade a Deployment, all Pods
of the old revision will be terminated immediately. Successful removal is awaited before any Pod of the new
revision is created. If you manually delete a Pod, the lifecycle is controlled by the ReplicaSet and the
replacement will be created immediately (even if the old Pod is still in a Terminating state). If you need an
"at most" guarantee for your Pods, you should consider using a
[StatefulSet](/docs/concepts/workloads/controllers/statefulset/).
{{< /note >}}
#### Rolling Update Deployment
The Deployment updates Pods in a rolling update