// ValidateObjectMetaUpdate validates an object's metadata when updated
func ValidateObjectMetaUpdate(newMeta, oldMeta *metav1.ObjectMeta, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
if !RepairMalformedUpdates && newMeta.UID != oldMeta.UID {
allErrs = append(allErrs, field.Invalid(fldPath.Child("uid"), newMeta.UID, "field is immutable"))
}
// in the event it is left empty, set it, to allow clients more flexibility
// TODO: remove the following code that repairs the update request when we retire the clients that modify the immutable fields.
// Please do not copy this pattern elsewhere; validation functions should not be modifying the objects they are passed!
if RepairMalformedUpdates {
if len(newMeta.UID) == 0 {
newMeta.UID = oldMeta.UID
}
// ignore changes to timestamp
if oldMeta.CreationTimestamp.IsZero() {
oldMeta.CreationTimestamp = newMeta.CreationTimestamp
} else {
newMeta.CreationTimestamp = oldMeta.CreationTimestamp
}
// an object can never remove a deletion timestamp or clear/change grace period seconds
if !oldMeta.DeletionTimestamp.IsZero() {
newMeta.DeletionTimestamp = oldMeta.DeletionTimestamp
}
if oldMeta.DeletionGracePeriodSeconds != nil && newMeta.DeletionGracePeriodSeconds == nil {
newMeta.DeletionGracePeriodSeconds = oldMeta.DeletionGracePeriodSeconds
}
}
// TODO: needs to check if newMeta==nil && oldMeta !=nil after the repair logic is removed.
if newMeta.DeletionGracePeriodSeconds != nil && (oldMeta.DeletionGracePeriodSeconds == nil || *newMeta.DeletionGracePeriodSeconds != *oldMeta.DeletionGracePeriodSeconds) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("deletionGracePeriodSeconds"), newMeta.DeletionGracePeriodSeconds, "field is immutable; may only be changed via deletion"))
}
if newMeta.DeletionTimestamp != nil && (oldMeta.DeletionTimestamp == nil || !newMeta.DeletionTimestamp.Equal(*oldMeta.DeletionTimestamp)) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("deletionTimestamp"), newMeta.DeletionTimestamp, "field is immutable; may only be changed via deletion"))
}
// Finalizers cannot be added if the object is already being deleted.
if oldMeta.DeletionTimestamp != nil {
allErrs = append(allErrs, ValidateNoNewFinalizers(newMeta.Finalizers, oldMeta.Finalizers, fldPath.Child("finalizers"))...)
}
// Reject updates that don't specify a resource version
if len(newMeta.ResourceVersion) == 0 {
allErrs = append(allErrs, field.Invalid(fldPath.Child("resourceVersion"), newMeta.ResourceVersion, "must be specified for an update"))
}
// Generation shouldn't be decremented
if newMeta.Generation < oldMeta.Generation {
allErrs = append(allErrs, field.Invalid(fldPath.Child("generation"), newMeta.Generation, "must not be decremented"))
}
allErrs = append(allErrs, ValidateImmutableField(newMeta.Name, oldMeta.Name, fldPath.Child("name"))...)
allErrs = append(allErrs, ValidateImmutableField(newMeta.Namespace, oldMeta.Namespace, fldPath.Child("namespace"))...)
allErrs = append(allErrs, ValidateImmutableField(newMeta.UID, oldMeta.UID, fldPath.Child("uid"))...)
allErrs = append(allErrs, ValidateImmutableField(newMeta.CreationTimestamp, oldMeta.CreationTimestamp, fldPath.Child("creationTimestamp"))...)
allErrs = append(allErrs, ValidateImmutableField(newMeta.ClusterName, oldMeta.ClusterName, fldPath.Child("clusterName"))...)
allErrs = append(allErrs, v1validation.ValidateLabels(newMeta.Labels, fldPath.Child("labels"))...)
allErrs = append(allErrs, ValidateAnnotations(newMeta.Annotations, fldPath.Child("annotations"))...)
allErrs = append(allErrs, ValidateOwnerReferences(newMeta.OwnerReferences, fldPath.Child("ownerReferences"))...)
return allErrs
}
