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Return the error from validateOverhead in RuntimeClass#Validate
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6a2d0f67d1
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059243fbd2
@ -32,6 +32,7 @@ go_test(
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"//staging/src/k8s.io/api/node/v1beta1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
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"//staging/src/k8s.io/apiserver/pkg/admission:go_default_library",
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"//staging/src/k8s.io/apiserver/pkg/authentication/user:go_default_library",
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"//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
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@ -112,9 +112,10 @@ func (r *RuntimeClass) Validate(attributes admission.Attributes, o admission.Obj
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if err != nil {
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return err
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}
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if utilfeature.DefaultFeatureGate.Enabled(features.PodOverhead) {
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err = validateOverhead(attributes, pod, runtimeClass)
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if err = validateOverhead(attributes, pod, runtimeClass); err != nil {
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return err
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}
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}
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return nil
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@ -136,28 +137,17 @@ func (r *RuntimeClass) prepareObjects(attributes admission.Attributes) (pod *api
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}
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// get RuntimeClass object
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runtimeClass, err = r.getRuntimeClass(pod, pod.Spec.RuntimeClassName)
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if err != nil {
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return pod, nil, err
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if pod.Spec.RuntimeClassName != nil {
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runtimeClass, err = r.runtimeClassLister.Get(*pod.Spec.RuntimeClassName)
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if err != nil {
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return pod, nil, err
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}
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}
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// return the pod and runtimeClass. If no RuntimeClass is specified in PodSpec, runtimeClass will be nil
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return pod, runtimeClass, nil
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}
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// getRuntimeClass will return a reference to the RuntimeClass object if it is found. If it cannot be found, or a RuntimeClassName
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// is not provided in the pod spec, *node.RuntimeClass returned will be nil
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func (r *RuntimeClass) getRuntimeClass(pod *api.Pod, runtimeClassName *string) (runtimeClass *v1beta1.RuntimeClass, err error) {
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runtimeClass = nil
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if runtimeClassName != nil {
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runtimeClass, err = r.runtimeClassLister.Get(*runtimeClassName)
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}
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return runtimeClass, err
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}
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func setOverhead(a admission.Attributes, pod *api.Pod, runtimeClass *v1beta1.RuntimeClass) (err error) {
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if runtimeClass != nil {
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@ -21,6 +21,7 @@ import (
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"k8s.io/api/node/v1beta1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apiserver/pkg/admission"
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"k8s.io/apiserver/pkg/authentication/user"
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utilfeature "k8s.io/apiserver/pkg/util/feature"
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@ -154,9 +155,79 @@ func TestSetOverhead(t *testing.T) {
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})
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}
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}
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func NewObjectInterfacesForTest() admission.ObjectInterfaces {
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scheme := runtime.NewScheme()
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corev1.AddToScheme(scheme)
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return admission.NewObjectInterfacesFromScheme(scheme)
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}
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func TestValidate(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.PodOverhead, true)()
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tests := []struct {
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name string
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runtimeClass *v1beta1.RuntimeClass
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pod *core.Pod
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expectError bool
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}{
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{
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name: "No Overhead in RunntimeClass, Overhead set in pod",
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runtimeClass: &v1beta1.RuntimeClass{
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ObjectMeta: metav1.ObjectMeta{Name: "foo"},
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Handler: "bar",
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},
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pod: validPod("no-resource-req-no-overhead", 1, getGuaranteedRequirements(), true),
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expectError: true,
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},
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{
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name: "Non-matching Overheads",
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runtimeClass: &v1beta1.RuntimeClass{
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ObjectMeta: metav1.ObjectMeta{Name: "foo"},
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Handler: "bar",
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Overhead: &v1beta1.Overhead{
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PodFixed: corev1.ResourceList{
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corev1.ResourceName(corev1.ResourceCPU): resource.MustParse("10"),
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corev1.ResourceName(corev1.ResourceMemory): resource.MustParse("10G"),
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},
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},
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},
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pod: validPod("no-resource-req-no-overhead", 1, core.ResourceRequirements{}, true),
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expectError: true,
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},
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{
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name: "Matching Overheads",
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runtimeClass: &v1beta1.RuntimeClass{
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ObjectMeta: metav1.ObjectMeta{Name: "foo"},
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Handler: "bar",
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Overhead: &v1beta1.Overhead{
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PodFixed: corev1.ResourceList{
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corev1.ResourceName(corev1.ResourceCPU): resource.MustParse("100m"),
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corev1.ResourceName(corev1.ResourceMemory): resource.MustParse("1"),
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},
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},
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},
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pod: validPod("no-resource-req-no-overhead", 1, core.ResourceRequirements{}, false),
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expectError: false,
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},
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}
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rt := NewRuntimeClass()
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o := NewObjectInterfacesForTest()
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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attrs := admission.NewAttributesRecord(tc.pod, nil, core.Kind("Pod").WithVersion("version"), tc.pod.Namespace, tc.pod.Name, core.Resource("pods").WithVersion("version"), "", admission.Create, &metav1.CreateOptions{}, false, &user.DefaultInfo{})
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errs := rt.Validate(attrs, o)
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if tc.expectError {
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assert.NotEmpty(t, errs)
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} else {
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assert.Empty(t, errs)
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}
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})
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}
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}
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func TestValidateOverhead(t *testing.T) {
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defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.PodOverhead, true)()
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tests := []struct {
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