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Merge pull request #51051 from janetkuo/fix-sts-validation

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Automatic merge from submit-queue (batch tested with PRs 50980, 46902, 51051, 51062, 51020)

Fix StatefulSet update validation

StatefulSet update validation did not allow change to number of containers in pod template. Fix this bug so that it's possible to make this kind of change. 

Found it when suggesting test-cmd changes in https://github.com/kubernetes/kubernetes/pull/49674.

@kubernetes/sig-apps-pr-reviews @smarterclayton 

/approve no-issue
This commit is contained in:
Kubernetes Submit Queue 2017-08-22 23:14:02 -07:00 committed by GitHub
commit 3a724ccdb3
2 changed files with 55 additions and 2 deletions
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2
pkg/apis/apps/validation/validation.go
View File

@ -158,8 +158,6 @@ func ValidateStatefulSetUpdate(statefulSet, oldStatefulSet *apps.StatefulSet) fi
statefulSet.Spec.UpdateStrategy = restoreStrategy
allErrs = append(allErrs, apivalidation.ValidateNonnegativeField(int64(statefulSet.Spec.Replicas), field.NewPath("spec", "replicas"))...)
containerErrs, _ := apivalidation.ValidateContainerUpdates(statefulSet.Spec.Template.Spec.Containers, oldStatefulSet.Spec.Template.Spec.Containers, field.NewPath("spec").Child("template").Child("containers"))
allErrs = append(allErrs, containerErrs...)
return allErrs
}

55
pkg/apis/apps/validation/validation_test.go
View File

@ -429,6 +429,21 @@ func TestValidateStatefulSetUpdate(t *testing.T) {
},
},
}
obj, err := api.Scheme.DeepCopy(validPodTemplate)
if err != nil {
t.Errorf("failure during test setup when copying PodTemplate: %v", err)
}
addContainersValidTemplate, ok := obj.(api.PodTemplate)
if !ok {
t.Errorf("failure during test setup, copied pod template is not a pod template")
}
addContainersValidTemplate.Template.Spec.Containers = append(addContainersValidTemplate.Template.Spec.Containers,
api.Container{Name: "def", Image: "image2", ImagePullPolicy: "IfNotPresent"})
if len(addContainersValidTemplate.Template.Spec.Containers) != len(validPodTemplate.Template.Spec.Containers)+1 {
t.Errorf("failure during test setup: template %v should have more containers than template %v", addContainersValidTemplate, validPodTemplate)
}
readWriteVolumePodTemplate := api.PodTemplate{
Template: api.PodTemplateSpec{
ObjectMeta: metav1.ObjectMeta{
@ -480,6 +495,46 @@ func TestValidateStatefulSetUpdate(t *testing.T) {
},
},
},
{
old: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
Spec: apps.StatefulSetSpec{
PodManagementPolicy: apps.OrderedReadyPodManagement,
Selector: &metav1.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
UpdateStrategy: apps.StatefulSetUpdateStrategy{Type: apps.RollingUpdateStatefulSetStrategyType},
},
},
update: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
Spec: apps.StatefulSetSpec{
PodManagementPolicy: apps.OrderedReadyPodManagement,
Selector: &metav1.LabelSelector{MatchLabels: validLabels},
Template: addContainersValidTemplate.Template,
UpdateStrategy: apps.StatefulSetUpdateStrategy{Type: apps.RollingUpdateStatefulSetStrategyType},
},
},
},
{
old: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
Spec: apps.StatefulSetSpec{
PodManagementPolicy: apps.OrderedReadyPodManagement,
Selector: &metav1.LabelSelector{MatchLabels: validLabels},
Template: addContainersValidTemplate.Template,
UpdateStrategy: apps.StatefulSetUpdateStrategy{Type: apps.RollingUpdateStatefulSetStrategyType},
},
},
update: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{Name: "abc", Namespace: metav1.NamespaceDefault},
Spec: apps.StatefulSetSpec{
PodManagementPolicy: apps.OrderedReadyPodManagement,
Selector: &metav1.LabelSelector{MatchLabels: validLabels},
Template: validPodTemplate.Template,
UpdateStrategy: apps.StatefulSetUpdateStrategy{Type: apps.RollingUpdateStatefulSetStrategyType},
},
},
},
}
for _, successCase := range successCases {
successCase.old.ObjectMeta.ResourceVersion = "1"