Remove mutation from pvc validation
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7335c41ebe
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@ -1773,27 +1773,26 @@ func ValidatePersistentVolumeClaimSpec(spec *core.PersistentVolumeClaimSpec, fld
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func ValidatePersistentVolumeClaimUpdate(newPvc, oldPvc *core.PersistentVolumeClaim) field.ErrorList {
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allErrs := ValidateObjectMetaUpdate(&newPvc.ObjectMeta, &oldPvc.ObjectMeta, field.NewPath("metadata"))
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allErrs = append(allErrs, ValidatePersistentVolumeClaim(newPvc)...)
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newPvcClone := newPvc.DeepCopy()
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oldPvcClone := oldPvc.DeepCopy()
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// PVController needs to update PVC.Spec w/ VolumeName.
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// Claims are immutable in order to enforce quota, range limits, etc. without gaming the system.
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if len(oldPvc.Spec.VolumeName) == 0 {
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// volumeName changes are allowed once.
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// Reset back to empty string after equality check
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oldPvc.Spec.VolumeName = newPvc.Spec.VolumeName
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defer func() { oldPvc.Spec.VolumeName = "" }()
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oldPvcClone.Spec.VolumeName = newPvcClone.Spec.VolumeName
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}
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if utilfeature.DefaultFeatureGate.Enabled(features.ExpandPersistentVolumes) {
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newPVCSpecCopy := newPvc.Spec.DeepCopy()
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// lets make sure storage values are same.
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if newPvc.Status.Phase == core.ClaimBound && newPVCSpecCopy.Resources.Requests != nil {
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newPVCSpecCopy.Resources.Requests["storage"] = oldPvc.Spec.Resources.Requests["storage"]
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if newPvc.Status.Phase == core.ClaimBound && newPvcClone.Spec.Resources.Requests != nil {
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newPvcClone.Spec.Resources.Requests["storage"] = oldPvc.Spec.Resources.Requests["storage"]
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}
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oldSize := oldPvc.Spec.Resources.Requests["storage"]
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newSize := newPvc.Spec.Resources.Requests["storage"]
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if !apiequality.Semantic.DeepEqual(*newPVCSpecCopy, oldPvc.Spec) {
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if !apiequality.Semantic.DeepEqual(newPvcClone.Spec, oldPvcClone.Spec) {
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allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "is immutable after creation except resources.requests for bound claims"))
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}
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if newSize.Cmp(oldSize) < 0 {
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@ -1803,7 +1802,7 @@ func ValidatePersistentVolumeClaimUpdate(newPvc, oldPvc *core.PersistentVolumeCl
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} else {
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// changes to Spec are not allowed, but updates to label/and some annotations are OK.
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// no-op updates pass validation.
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if !apiequality.Semantic.DeepEqual(newPvc.Spec, oldPvc.Spec) {
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if !apiequality.Semantic.DeepEqual(newPvcClone.Spec, oldPvcClone.Spec) {
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allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "field is immutable after creation"))
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}
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}
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@ -1815,8 +1814,6 @@ func ValidatePersistentVolumeClaimUpdate(newPvc, oldPvc *core.PersistentVolumeCl
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if utilfeature.DefaultFeatureGate.Enabled(features.BlockVolume) {
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allErrs = append(allErrs, ValidateImmutableField(newPvc.Spec.VolumeMode, oldPvc.Spec.VolumeMode, field.NewPath("volumeMode"))...)
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}
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newPvc.Status = oldPvc.Status
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return allErrs
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}
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