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kubernetes/pkg
Kubernetes Submit Queue dcf14add92 Merge pull request #37228 from sjenning/teardown-terminated-volumes
Automatic merge from submit-queue (batch tested with PRs 37228, 40146, 40075, 38789, 40189)

kubelet: storage: teardown terminated pod volumes

This is a continuation of the work done in https://github.com/kubernetes/kubernetes/pull/36779

There really is no reason to keep volumes for terminated pods attached on the node.  This PR extends the removal of volumes on the node from memory-backed (the current policy) to all volumes.

@pmorie raised a concern an impact debugging volume related issues if terminated pod volumes are removed.  To address this issue, the PR adds a `--keep-terminated-pod-volumes` flag the kubelet and sets it for `hack/local-up-cluster.sh`.

For consideration in 1.6.

Fixes #35406

@derekwaynecarr @vishh @dashpole

```release-note
kubelet tears down pod volumes on pod termination rather than pod deletion
```
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