Unable to create 100MiB PVC from snapshot created from 100MiB PVC

[kaovilai]

/kind bug
Created PVC-A with 100MiB request (ebs gives back 1GiB)
Create VolumeSnapshot-A - 1GiB snapshot created
Create new 100MiB requested PVC-B using 1GiB VolumeSnapshot-A as data source

What happened?

Generated from ebs.csi.aws.com_<nodeip>_<uuid?>
9 times in the last 3 minutes
failed to provision volume with StorageClass "gp2-csi": error getting handle for DataSource Type VolumeSnapshot by Name velero-pc-data-lmkpz: requested volume size 104857600 is less than the size 1073741824 for the source snapshot velero-pc-data-lmkpz

What you expected to happen?
EBS driver should know that PVC-B if created without datasource, it would result in 1GiB volume, so final requested volume size should be the same as the source snapshot. Thus, there should be enough space in the resulting PVC-B for VolumeSnapshot-A to fit onto.

How to reproduce it (as minimally and precisely as possible)?
Created PVC-A with 100MiB request (ebs gives back 1GiB)
Create VolumeSnapshot-A - 1GiB snapshot created
Create new 100MiB requested PVC-B using 1GiB VolumeSnapshot-A as data source

Anything else we need to know?:
End user who requested 100MiB should not need to know the details of CreateVolume API (the fact that it round up to GiB).
They expect that if they requested 100MiB PVC, they snapshot it, they can use the snapshot as a datasource towards another 100MiB requested PVC

Environment

• Kubernetes version (use kubectl version): 1.22
• Driver version:

[rdpsin]

This is due to the fact the validation is done in external-provisioner, before controller's CreateVolume is called.

[kaovilai]

Filed issue kubernetes-csi/external-provisioner#727

[k8s-triage-robot]

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/lifecycle stale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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/lifecycle stale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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

This bot triages issues and PRs according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/lifecycle stale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/lifecycle stale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/lifecycle stale

[k8s-triage-robot]

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/lifecycle rotten

[kaovilai]

/remove-lifecycle rotten

[k8s-triage-robot]

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

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/lifecycle stale

[kaovilai]

unstale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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You can:

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Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[kaovilai]

unstale

[kaovilai]

/remove-lifecycle stale

[k8s-triage-robot]

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

This bot triages un-triaged issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
• After 30d of inactivity since lifecycle/rotten was applied, the issue is closed

You can:

• Mark this issue as fresh with /remove-lifecycle stale
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Please send feedback to sig-contributor-experience at kubernetes/community.

/lifecycle stale

[ConnorJC3]

/remove-lifecycle stale