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Allow SecretReference.Name in PVs to have 253 characters

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PV.Spec.CSI.*SecretReference.Name should be allowed to have up to be
limited to 253 characters (DNS1123Subdomain) and not to 63 characters
(DNS1123Label), so all possible Secrets names can be used as secrets in a
PV.

This is continuation of
https://github.com/kubernetes/kubernetes/pull/108331 / Kubernetes 1.25,
which allowed updating PVs with long secret names, if the previous PV had
long secret name too. This makes sure downgrade from 1.27 to 1.26 works well
and allows PVs created in 1.27 to be updated in 1.26.

Now the long secret names are accepted during PV creation too.
This commit is contained in:
Jan Safranek
2023-01-03 14:19:30 +01:00
parent 1edbb8cf1a
commit e743a6d14d
2 changed files with 44 additions and 92 deletions
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35
pkg/apis/core/validation/validation.go
View File

@@ -1531,14 +1531,12 @@ func validateStorageOSPersistentVolumeSource(storageos *core.StorageOSPersistent
// validatePVSecretReference check whether provided SecretReference object is valid in terms of secret name and namespace.
func validatePVSecretReference(secretRef *core.SecretReference, allowDNSSubDomainSecretName bool, fldPath *field.Path) field.ErrorList {
func validatePVSecretReference(secretRef *core.SecretReference, fldPath *field.Path) field.ErrorList {
var allErrs field.ErrorList
if len(secretRef.Name) == 0 {
allErrs = append(allErrs, field.Required(fldPath.Child("name"), ""))
} else if allowDNSSubDomainSecretName {
allErrs = append(allErrs, ValidateDNS1123Subdomain(secretRef.Name, fldPath.Child("name"))...)
} else {
allErrs = append(allErrs, ValidateDNS1123Label(secretRef.Name, fldPath.Child("name"))...)
allErrs = append(allErrs, ValidateDNS1123Subdomain(secretRef.Name, fldPath.Child("name"))...)
}
if len(secretRef.Namespace) == 0 {
@@ -1567,7 +1565,7 @@ func ValidateCSIDriverName(driverName string, fldPath *field.Path) field.ErrorLi
return allErrs
}
func validateCSIPersistentVolumeSource(csi *core.CSIPersistentVolumeSource, allowDNSSubDomainSecretName bool, fldPath *field.Path) field.ErrorList {
func validateCSIPersistentVolumeSource(csi *core.CSIPersistentVolumeSource, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, ValidateCSIDriverName(csi.Driver, fldPath.Child("driver"))...)
@@ -1576,16 +1574,16 @@ func validateCSIPersistentVolumeSource(csi *core.CSIPersistentVolumeSource, allo
allErrs = append(allErrs, field.Required(fldPath.Child("volumeHandle"), ""))
}
if csi.ControllerPublishSecretRef != nil {
allErrs = append(allErrs, validatePVSecretReference(csi.ControllerPublishSecretRef, allowDNSSubDomainSecretName, fldPath.Child("controllerPublishSecretRef"))...)
allErrs = append(allErrs, validatePVSecretReference(csi.ControllerPublishSecretRef, fldPath.Child("controllerPublishSecretRef"))...)
}
if csi.ControllerExpandSecretRef != nil {
allErrs = append(allErrs, validatePVSecretReference(csi.ControllerExpandSecretRef, allowDNSSubDomainSecretName, fldPath.Child("controllerExpandSecretRef"))...)
allErrs = append(allErrs, validatePVSecretReference(csi.ControllerExpandSecretRef, fldPath.Child("controllerExpandSecretRef"))...)
}
if csi.NodePublishSecretRef != nil {
allErrs = append(allErrs, validatePVSecretReference(csi.NodePublishSecretRef, allowDNSSubDomainSecretName, fldPath.Child("nodePublishSecretRef"))...)
allErrs = append(allErrs, validatePVSecretReference(csi.NodePublishSecretRef, fldPath.Child("nodePublishSecretRef"))...)
}
if csi.NodeExpandSecretRef != nil {
allErrs = append(allErrs, validatePVSecretReference(csi.NodeExpandSecretRef, allowDNSSubDomainSecretName, fldPath.Child("nodeExpandSecretRef"))...)
allErrs = append(allErrs, validatePVSecretReference(csi.NodeExpandSecretRef, fldPath.Child("nodeExpandSecretRef"))...)
}
return allErrs
}
@@ -1647,8 +1645,6 @@ var allowedTemplateObjectMetaFields = map[string]bool{
type PersistentVolumeSpecValidationOptions struct {
// Allow spec to contain the "ReadWiteOncePod" access mode
AllowReadWriteOncePod bool
// Allow the secretRef Name field to be of DNSSubDomain Format
AllowDNSSubDomainSecretName bool
}
// ValidatePersistentVolumeName checks that a name is appropriate for a
@@ -1663,8 +1659,7 @@ var supportedVolumeModes = sets.NewString(string(core.PersistentVolumeBlock), st
func ValidationOptionsForPersistentVolume(pv, oldPv *core.PersistentVolume) PersistentVolumeSpecValidationOptions {
opts := PersistentVolumeSpecValidationOptions{
AllowReadWriteOncePod: utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
AllowDNSSubDomainSecretName: false,
AllowReadWriteOncePod: utilfeature.DefaultFeatureGate.Enabled(features.ReadWriteOncePod),
}
if oldPv == nil {
// If there's no old PV, use the options based solely on feature enablement
@@ -1674,21 +1669,9 @@ func ValidationOptionsForPersistentVolume(pv, oldPv *core.PersistentVolume) Pers
// If the old object allowed "ReadWriteOncePod", continue to allow it in the new object
opts.AllowReadWriteOncePod = true
}
if oldCSI := oldPv.Spec.CSI; oldCSI != nil {
opts.AllowDNSSubDomainSecretName =
secretRefRequiresSubdomainSecretName(oldCSI.ControllerExpandSecretRef) ||
secretRefRequiresSubdomainSecretName(oldCSI.ControllerPublishSecretRef) ||
secretRefRequiresSubdomainSecretName(oldCSI.NodeStageSecretRef) ||
secretRefRequiresSubdomainSecretName(oldCSI.NodePublishSecretRef)
}
return opts
}
func secretRefRequiresSubdomainSecretName(secretRef *core.SecretReference) bool {
// ref and name were specified and name didn't fit within label validation
return secretRef != nil && len(secretRef.Name) > 0 && len(validation.IsDNS1123Label(secretRef.Name)) > 0
}
func ValidatePersistentVolumeSpec(pvSpec *core.PersistentVolumeSpec, pvName string, validateInlinePersistentVolumeSpec bool, fldPath *field.Path, opts PersistentVolumeSpecValidationOptions) field.ErrorList {
allErrs := field.ErrorList{}
@@ -1943,7 +1926,7 @@ func ValidatePersistentVolumeSpec(pvSpec *core.PersistentVolumeSpec, pvName stri
allErrs = append(allErrs, field.Forbidden(fldPath.Child("csi"), "may not specify more than 1 volume type"))
} else {
numVolumes++
allErrs = append(allErrs, validateCSIPersistentVolumeSource(pvSpec.CSI, opts.AllowDNSSubDomainSecretName, fldPath.Child("csi"))...)
allErrs = append(allErrs, validateCSIPersistentVolumeSource(pvSpec.CSI, fldPath.Child("csi"))...)
}
}