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Merge pull request #118102 from RomanBednar/retro-sc-assignment-ga

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graduate RetroactiveDefaultStorageClass feature to GA in 1.28
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Kubernetes Prow Robot 2023-06-27 20:46:32 -07:00 committed by GitHub
commit 960830bc66
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6 changed files with 55 additions and 106 deletions
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17
pkg/apis/core/validation/validation.go
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@ -2019,8 +2019,6 @@ type PersistentVolumeClaimSpecValidationOptions struct {
AllowReadWriteOncePod bool
// Allow users to recover from previously failing expansion operation
EnableRecoverFromExpansionFailure bool
// Allow assigning StorageClass to unbound PVCs retroactively
EnableRetroactiveDefaultStorageClass bool
// Allow to validate the label value of the label selector
AllowInvalidLabelValueInSelector bool
}
@ -2029,7 +2027,6 @@ func ValidationOptionsForPersistentVolumeClaim(pvc, oldPvc *core.PersistentVolum
opts := PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
EnableRecoverFromExpansionFailure: utilfeature.DefaultFeatureGate.Enabled(features.RecoverVolumeExpansionFailure),
EnableRetroactiveDefaultStorageClass: utilfeature.DefaultFeatureGate.Enabled(features.RetroactiveDefaultStorageClass),
AllowInvalidLabelValueInSelector: false,
}
if oldPvc == nil {
@ -2286,16 +2283,14 @@ func validateStorageClassUpgradeFromAnnotation(oldAnnotations, newAnnotations ma
// Provide an upgrade path from PVC with nil storage class. We allow update of
// StorageClassName only if following four conditions are met at the same time:
// 1. RetroactiveDefaultStorageClass FeatureGate is enabled
// 2. The new pvc's StorageClassName is not nil
// 3. The old pvc's StorageClassName is nil
// 4. The old pvc either does not have beta annotation set, or the beta annotation matches new pvc's StorageClassName
// 1. The new pvc's StorageClassName is not nil
// 2. The old pvc's StorageClassName is nil
// 3. The old pvc either does not have beta annotation set, or the beta annotation matches new pvc's StorageClassName
func validateStorageClassUpgradeFromNil(oldAnnotations map[string]string, oldScName, newScName *string, opts PersistentVolumeClaimSpecValidationOptions) bool {
oldAnnotation, oldAnnotationExist := oldAnnotations[core.BetaStorageClassAnnotation]
return opts.EnableRetroactiveDefaultStorageClass /* condition 1 */ &&
newScName != nil /* condition 2 */ &&
oldScName == nil /* condition 3 */ &&
(!oldAnnotationExist || *newScName == oldAnnotation) /* condition 4 */
return newScName != nil /* condition 1 */ &&
oldScName == nil /* condition 2 */ &&
(!oldAnnotationExist || *newScName == oldAnnotation) /* condition 3 */
}
var resizeStatusSet = sets.NewString(string(core.PersistentVolumeClaimNoExpansionInProgress),

42
pkg/apis/core/validation/validation_test.go
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@ -2424,7 +2424,6 @@ func TestValidatePersistentVolumeClaimUpdate(t *testing.T) {
oldClaim *core.PersistentVolumeClaim
newClaim *core.PersistentVolumeClaim
enableRecoverFromExpansion bool
enableRetroactiveDefaultStorageClass bool
}{
"valid-update-volumeName-only": {
isExpectedFailure: false,
@ -2539,64 +2538,31 @@ func TestValidatePersistentVolumeClaimUpdate(t *testing.T) {
isExpectedFailure: false,
oldClaim: validClaimStorageClassNil,
newClaim: validClaimStorageClassInSpec,
enableRetroactiveDefaultStorageClass: true,
// Feature enabled - change from nil sc name is valid if there is no beta annotation.
},
"invalid-upgrade-nil-storage-class-spec-to-spec": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassNil,
newClaim: validClaimStorageClassInSpec,
enableRetroactiveDefaultStorageClass: false,
// Feature disabled - change from nil sc name is invalid if there is no beta annotation.
},
"invalid-upgrade-not-nil-storage-class-spec-to-spec": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassInSpec,
newClaim: validClaimStorageClassInSpecChanged,
enableRetroactiveDefaultStorageClass: true,
// Feature enablement must not allow non nil value change.
},
"invalid-upgrade-to-nil-storage-class-spec-to-spec": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassInSpec,
newClaim: validClaimStorageClassNil,
enableRetroactiveDefaultStorageClass: true,
// Feature enablement must not allow change to nil value change.
},
"valid-upgrade-storage-class-annotation-and-nil-spec-to-spec": {
isExpectedFailure: false,
oldClaim: validClaimStorageClassInAnnotationAndNilInSpec,
newClaim: validClaimStorageClassInAnnotationAndSpec,
enableRetroactiveDefaultStorageClass: false,
// Change from nil sc name is valid if annotations match.
},
"valid-upgrade-storage-class-annotation-and-nil-spec-to-spec-retro": {
isExpectedFailure: false,
oldClaim: validClaimStorageClassInAnnotationAndNilInSpec,
newClaim: validClaimStorageClassInAnnotationAndSpec,
enableRetroactiveDefaultStorageClass: true,
// Change from nil sc name is valid if annotations match, feature enablement must not break this old behavior.
},
"invalid-upgrade-storage-class-annotation-and-spec-to-spec": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassInAnnotationAndSpec,
newClaim: validClaimStorageClassInSpecChanged,
enableRetroactiveDefaultStorageClass: false,
// Change from non nil sc name is invalid if annotations don't match.
},
"invalid-upgrade-storage-class-annotation-and-spec-to-spec-retro": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassInAnnotationAndSpec,
newClaim: validClaimStorageClassInSpecChanged,
enableRetroactiveDefaultStorageClass: true,
// Change from non nil sc name is invalid if annotations don't match, feature enablement must not break this old behavior.
},
"invalid-upgrade-storage-class-annotation-and-no-spec": {
isExpectedFailure: true,
oldClaim: validClaimStorageClassInAnnotationAndNilInSpec,
newClaim: validClaimStorageClassInSpecChanged,
enableRetroactiveDefaultStorageClass: true,
// Change from nil sc name is invalid if annotations don't match, feature enablement must not break this old behavior.
},
"invalid-upgrade-storage-class-annotation-to-spec": {
isExpectedFailure: true,
@ -2662,7 +2628,6 @@ func TestValidatePersistentVolumeClaimUpdate(t *testing.T) {
for name, scenario := range scenarios {
t.Run(name, func(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RecoverVolumeExpansionFailure, scenario.enableRecoverFromExpansion)()
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RetroactiveDefaultStorageClass, scenario.enableRetroactiveDefaultStorageClass)()
scenario.oldClaim.ResourceVersion = "1"
scenario.newClaim.ResourceVersion = "1"
opts := ValidationOptionsForPersistentVolumeClaim(scenario.newClaim, scenario.oldClaim)
@ -2689,7 +2654,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: true,
EnableRecoverFromExpansionFailure: false,
EnableRetroactiveDefaultStorageClass: true,
},
},
"rwop allowed because feature enabled": {
@ -2698,7 +2662,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: true,
EnableRecoverFromExpansionFailure: false,
EnableRetroactiveDefaultStorageClass: true,
},
},
"rwop not allowed because not used and feature disabled": {
@ -2707,7 +2670,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: false,
EnableRecoverFromExpansionFailure: false,
EnableRetroactiveDefaultStorageClass: true,
},
},
"rwop allowed because used and feature enabled": {
@ -2716,7 +2678,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: true,
EnableRecoverFromExpansionFailure: false,
EnableRetroactiveDefaultStorageClass: true,
},
},
"rwop allowed because used and feature disabled": {
@ -2725,7 +2686,6 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
expectValidationOpts: PersistentVolumeClaimSpecValidationOptions{
AllowReadWriteOncePod: true,
EnableRecoverFromExpansionFailure: false,
EnableRetroactiveDefaultStorageClass: true,
},
},
}
@ -2736,7 +2696,7 @@ func TestValidationOptionsForPersistentVolumeClaim(t *testing.T) {
opts := ValidationOptionsForPersistentVolumeClaim(nil, tc.oldPvc)
if opts != tc.expectValidationOpts {
t.Errorf("Expected opts: %+v, received: %+v", opts, tc.expectValidationOpts)
t.Errorf("Expected opts: %+v, received: %+v", tc.expectValidationOpts, opts)
}
})
}

4
pkg/controller/volume/persistentvolume/pv_controller.go
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@ -349,8 +349,7 @@ func (ctrl *PersistentVolumeController) syncUnboundClaim(ctx context.Context, cl
// No PV could be found
// OBSERVATION: pvc is "Pending", will retry
if utilfeature.DefaultFeatureGate.Enabled(features.RetroactiveDefaultStorageClass) {
logger.V(4).Info("FeatureGate is enabled, attempting to assign storage class to unbound PersistentVolumeClaim", "featureGate", features.RetroactiveDefaultStorageClass, "PVC", klog.KObj(claim))
logger.V(4).Info("Attempting to assign storage class to unbound PersistentVolumeClaim", "PVC", klog.KObj(claim))
updated, err := ctrl.assignDefaultStorageClass(ctx, claim)
if err != nil {
metrics.RecordRetroactiveStorageClassMetric(false)
@ -361,7 +360,6 @@ func (ctrl *PersistentVolumeController) syncUnboundClaim(ctx context.Context, cl
metrics.RecordRetroactiveStorageClassMetric(true)
return nil
}
}
switch {
case delayBinding && !storagehelpers.IsDelayBindingProvisioning(claim):

2
pkg/controller/volume/persistentvolume/pv_controller_test.go
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@ -754,8 +754,6 @@ func TestModifyDeletionFinalizers(t *testing.T) {
}
func TestRetroactiveStorageClassAssignment(t *testing.T) {
// Enable RetroactiveDefaultStorageClass feature gate.
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RetroactiveDefaultStorageClass, true)()
tests := []struct {
storageClasses []*storagev1.StorageClass
tests []controllerTest

4
pkg/features/kube_features.go
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@ -668,6 +668,8 @@ const (
// owner: @RomanBednar
// kep: https://kep.k8s.io/3333
// alpha: v1.25
// beta: 1.26
// stable: v1.28
//
// Allow assigning StorageClass to unbound PVCs retroactively
RetroactiveDefaultStorageClass featuregate.Feature = "RetroactiveDefaultStorageClass"
@ -1026,7 +1028,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
RecoverVolumeExpansionFailure: {Default: false, PreRelease: featuregate.Alpha},
RetroactiveDefaultStorageClass: {Default: true, PreRelease: featuregate.Beta},
RetroactiveDefaultStorageClass: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.29
RotateKubeletServerCertificate: {Default: true, PreRelease: featuregate.Beta},

4
test/integration/volume/persistent_volumes_test.go
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@ -19,9 +19,6 @@ package volume
import (
"context"
"fmt"
utilfeature "k8s.io/apiserver/pkg/util/feature"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/kubernetes/pkg/features"
"math/rand"
"os"
"strconv"
@ -1045,7 +1042,6 @@ func TestPersistentVolumeMultiPVsDiffAccessModes(t *testing.T) {
// assignment and binding of PVCs with storage class name set to nil or "" with
// and without presence of a default SC.
func TestRetroactiveStorageClassAssignment(t *testing.T) {
defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.RetroactiveDefaultStorageClass, true)()
s := kubeapiservertesting.StartTestServerOrDie(t, nil, []string{"--disable-admission-plugins=DefaultStorageClass"}, framework.SharedEtcd())
defer s.TearDownFn()
namespaceName := "retro-pvc-sc"