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deepcopy statefulsets

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This commit is contained in:
David Eads 2021-02-17 10:51:38 -05:00
parent eb264c05c5
commit 2a0ef026b6
1 changed files with 7 additions and 13 deletions
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20
pkg/apis/apps/validation/validation.go
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@ -146,21 +146,15 @@ func ValidateStatefulSet(statefulSet *apps.StatefulSet, opts apivalidation.PodVa
func ValidateStatefulSetUpdate(statefulSet, oldStatefulSet *apps.StatefulSet) field.ErrorList {
allErrs := apivalidation.ValidateObjectMetaUpdate(&statefulSet.ObjectMeta, &oldStatefulSet.ObjectMeta, field.NewPath("metadata"))
restoreReplicas := statefulSet.Spec.Replicas
statefulSet.Spec.Replicas = oldStatefulSet.Spec.Replicas
restoreTemplate := statefulSet.Spec.Template
statefulSet.Spec.Template = oldStatefulSet.Spec.Template
restoreStrategy := statefulSet.Spec.UpdateStrategy
statefulSet.Spec.UpdateStrategy = oldStatefulSet.Spec.UpdateStrategy
if !apiequality.Semantic.DeepEqual(statefulSet.Spec, oldStatefulSet.Spec) {
// statefulset updates aren't super common and general updates are likely to be touching spec, so we'll do this
// deep copy right away. This avoids mutating our inputs
newStatefulSetClone := statefulSet.DeepCopy()
newStatefulSetClone.Spec.Replicas = oldStatefulSet.Spec.Replicas // +k8s:verify-mutation:reason=clone
newStatefulSetClone.Spec.Template = oldStatefulSet.Spec.Template // +k8s:verify-mutation:reason=clone
newStatefulSetClone.Spec.UpdateStrategy = oldStatefulSet.Spec.UpdateStrategy // +k8s:verify-mutation:reason=clone
if !apiequality.Semantic.DeepEqual(newStatefulSetClone.Spec, oldStatefulSet.Spec) {
allErrs = append(allErrs, field.Forbidden(field.NewPath("spec"), "updates to statefulset spec for fields other than 'replicas', 'template', and 'updateStrategy' are forbidden"))
}
statefulSet.Spec.Replicas = restoreReplicas
statefulSet.Spec.Template = restoreTemplate
statefulSet.Spec.UpdateStrategy = restoreStrategy
allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(statefulSet.Spec.Replicas), field.NewPath("spec", "replicas"))...)
return allErrs