Creating PVC from a snapshot with restoreSize larger than PVC request size.

Reverse issue from #485

User story:
Created PVC-A with 100MiB request (external provisioner gives back capacity higher than requested, for whatever reason)
Create VolumeSnapshot-A - snapshot created with restore size = PV capacity > PVC storage request.
Create new 100MiB request PVC-B using snapshot VolumeSnapshot-A as data source which has restoreSize > PVC storage request

Expectation:
New PVC can be created from a volumesnapshot created from another PVC of the same request size regardless of the source PVC resulting capacity and therefore volumesnapshot restoreSize.

Suggested resolution:
As long as capacity is allowed to be higher than requested size, then snapshot restoreSize larger than request should be a valid source to create PVC. Either by default, or with a flag resizeRequests: true

PVC resource request only means minimum size, and should be treated as such. PVC size should be allowed to grow when dataSource used is larger.

Current code that will need to change to satisfy this request:

external-provisioner/pkg/controller/controller.go

Line 1100 in 0456e73

    
           return nil, fmt.Errorf("requested volume size %d is less than the size %d for the source snapshot %s", int64(volSizeBytes), int64(snapshotObj.Status.RestoreSize.Value()), snapshotObj.Name)

Not sure if this behavior exists for internal-provisioners as well.. if so it would be great to have those cases handled too.

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/close not-planned

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

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/reopen

@kaovilai: Reopened this issue.

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/reopen

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/close not-planned

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/reopen

@kaovilai: Reopened this issue.

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/reopen

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This seems to be a duplicate of #485.

reverse of. Is it resolved for this too?

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/close not-planned

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/close not-planned

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/reopen

…

On Sun, Jun 18, 2023, 12:18 AM Kubernetes Prow Robot < ***@***.***> wrote: Closed #727 <#727> as not planned. — Reply to this email directly, view it on GitHub <#727 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACVVG6AO2PX5PNHSFQS6YRDXLXDC5ANCNFSM5TWNGM4A> . You are receiving this because you were mentioned.Message ID: <kubernetes-csi/external-provisioner/issue/727/issue_event/9559009942@ github.com>

@kaovilai: Reopened this issue.

In response to this:

/reopen

On Sun, Jun 18, 2023, 12:18 AM Kubernetes Prow Robot <
@.***> wrote:

Closed #727
#727 as
not planned.

—
Reply to this email directly, view it on GitHub
#727 (comment),
or unsubscribe
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.
You are receiving this because you were mentioned.Message ID:
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The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

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/close not-planned

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

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/close not-planned

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