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Merge pull request #107302 from pacoxu/fix/empty-dir-quota-monitoring

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assignQuota checks if the underlying medium supports quotas and if so setting it
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Kubernetes Prow Robot 2022-01-05 09:23:18 -08:00 committed by GitHub
commit 4f35d80f4e
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1 changed files with 24 additions and 15 deletions
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39
pkg/volume/emptydir/empty_dir.go
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@ -257,7 +257,9 @@ func (ed *emptyDir) SetUpAt(dir string, mounterArgs volume.MounterArgs) error {
} else if ed.medium == v1.StorageMediumDefault {
// Further check dir exists
if _, err := os.Stat(dir); err == nil {
return nil
klog.V(6).InfoS("Dir exists, so check and assign quota if the underlying medium supports quotas", "dir", dir)
err = ed.assignQuota(dir, mounterArgs.DesiredSize)
return err
}
// This situation should not happen unless user manually delete volume dir.
// In this case, delete ready file and print a warning for it.
@ -286,24 +288,31 @@ func (ed *emptyDir) SetUpAt(dir string, mounterArgs volume.MounterArgs) error {
// enforcement.
if err == nil {
volumeutil.SetReady(ed.getMetaDir())
if mounterArgs.DesiredSize != nil {
// Deliberately shadow the outer use of err as noted
// above.
hasQuotas, err := fsquota.SupportsQuotas(ed.mounter, dir)
if err != nil {
klog.V(3).Infof("Unable to check for quota support on %s: %s", dir, err.Error())
} else if hasQuotas {
klog.V(4).Infof("emptydir trying to assign quota %v on %s", mounterArgs.DesiredSize, dir)
err := fsquota.AssignQuota(ed.mounter, dir, ed.pod.UID, mounterArgs.DesiredSize)
if err != nil {
klog.V(3).Infof("Set quota on %s failed %s", dir, err.Error())
}
}
}
err = ed.assignQuota(dir, mounterArgs.DesiredSize)
}
return err
}
// assignQuota checks if the underlying medium supports quotas and if so, sets
func (ed *emptyDir) assignQuota(dir string, mounterSize *resource.Quantity) error {
if mounterSize != nil {
// Deliberately shadow the outer use of err as noted
// above.
hasQuotas, err := fsquota.SupportsQuotas(ed.mounter, dir)
if err != nil {
klog.V(3).Infof("Unable to check for quota support on %s: %s", dir, err.Error())
} else if hasQuotas {
klog.V(4).Infof("emptydir trying to assign quota %v on %s", mounterSize, dir)
err := fsquota.AssignQuota(ed.mounter, dir, ed.pod.UID, mounterSize)
if err != nil {
klog.V(3).Infof("Set quota on %s failed %s", dir, err.Error())
}
return err
}
}
return nil
}
// setupTmpfs creates a tmpfs mount at the specified directory.
func (ed *emptyDir) setupTmpfs(dir string) error {
if ed.mounter == nil {