kubernetes/pkg/apis/scheduling/validation/validation_test.go
Antoni Zawodny 59c9f75133 Add Workload-Aware Preemption fields to Workload and PodGroup APIs
Co-authored-by: Omar Sayed <omarsayed@google.com>
2026-03-24 09:03:50 +01:00

702 lines
22 KiB
Go

/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package validation
import (
"strings"
"testing"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/apis/scheduling"
schedulingapiv1 "k8s.io/kubernetes/pkg/apis/scheduling/v1"
)
func TestValidatePriorityClass(t *testing.T) {
spcs := schedulingapiv1.SystemPriorityClasses()
successCases := map[string]scheduling.PriorityClass{
"no description": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: ""},
Value: 100,
},
"with description": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: ""},
Value: 200,
GlobalDefault: false,
Description: "Used for the highest priority pods.",
},
"system node critical": {
ObjectMeta: metav1.ObjectMeta{Name: spcs[0].Name, Namespace: ""},
Value: spcs[0].Value,
GlobalDefault: spcs[0].GlobalDefault,
Description: "system priority class 0",
},
}
for k, v := range successCases {
if errs := ValidatePriorityClass(&v); len(errs) != 0 {
t.Errorf("Expected success for %s, got %v", k, errs)
}
}
errorCases := map[string]scheduling.PriorityClass{
"with namespace": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "foo"},
Value: 100,
},
"invalid name": {
ObjectMeta: metav1.ObjectMeta{Name: "tier&1", Namespace: ""},
Value: 100,
},
"incorrect system class name": {
ObjectMeta: metav1.ObjectMeta{Name: spcs[0].Name, Namespace: ""},
Value: 0,
GlobalDefault: spcs[0].GlobalDefault,
},
"incorrect system class value": {
ObjectMeta: metav1.ObjectMeta{Name: "system-something", Namespace: ""},
Value: spcs[0].Value,
GlobalDefault: spcs[0].GlobalDefault,
},
}
for k, v := range errorCases {
if errs := ValidatePriorityClass(&v); len(errs) == 0 {
t.Errorf("Expected error for %s, but it succeeded", k)
}
}
}
func TestValidatePriorityClassUpdate(t *testing.T) {
preemptLowerPriority := core.PreemptLowerPriority
preemptNever := core.PreemptNever
old := scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "1"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
}
successCases := map[string]scheduling.PriorityClass{
"no change": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
Description: "Used for the highest priority pods.",
},
"change description": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
Description: "A different description.",
},
"remove description": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
},
"change globalDefault": {
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
GlobalDefault: true,
},
}
for k, v := range successCases {
if errs := ValidatePriorityClassUpdate(&v, &old); len(errs) != 0 {
t.Errorf("Expected success for %s, got %v", k, errs)
}
}
errorCases := map[string]struct {
P scheduling.PriorityClass
T field.ErrorType
}{
"add namespace": {
P: scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "foo", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
},
T: field.ErrorTypeInvalid,
},
"change name": {
P: scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier2", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptLowerPriority,
},
T: field.ErrorTypeInvalid,
},
"remove value": {
P: scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
PreemptionPolicy: &preemptLowerPriority,
},
T: field.ErrorTypeForbidden,
},
"change value": {
P: scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 101,
PreemptionPolicy: &preemptLowerPriority,
},
T: field.ErrorTypeForbidden,
},
"change preemptionPolicy": {
P: scheduling.PriorityClass{
ObjectMeta: metav1.ObjectMeta{Name: "tier1", Namespace: "", ResourceVersion: "2"},
Value: 100,
PreemptionPolicy: &preemptNever,
},
T: field.ErrorTypeInvalid,
},
}
for k, v := range errorCases {
errs := ValidatePriorityClassUpdate(&v.P, &old)
if len(errs) == 0 {
t.Errorf("Expected error for %s, but it succeeded", k)
continue
}
for i := range errs {
if errs[i].Type != v.T {
t.Errorf("%s: expected errors to have type %s: %v", k, v.T, errs[i])
}
}
}
}
func TestValidateWorkload(t *testing.T) {
successCases := map[string]*scheduling.Workload{
"basic and gang policies": mkWorkload(),
"no controllerRef": mkWorkload(func(w *scheduling.Workload) {
w.Spec.ControllerRef = nil
}),
"no scheduling constraints": mkWorkload(func(w *scheduling.Workload) {
w.Spec.PodGroupTemplates[1].SchedulingConstraints = nil
}),
}
for name, workload := range successCases {
errs := ValidateWorkload(workload)
if len(errs) != 0 {
t.Errorf("Expected success for %q: %v", name, errs)
}
}
failureCases := map[string]struct {
workload *scheduling.Workload
expectedErrs field.ErrorList
}{
"no name": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Name = ""
}),
expectedErrs: field.ErrorList{
field.Required(field.NewPath("metadata", "name"), "name or generateName is required"),
},
},
"invalid name": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Name = ".workload"
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "name"), ".workload", "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"too long name": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Name = strings.Repeat("w", 254)
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "name"), ".name", "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"no namespace": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Namespace = ""
}),
expectedErrs: field.ErrorList{
field.Required(field.NewPath("metadata", "namespace"), "Required value"),
},
},
"invalid namespace": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Namespace = ".ns"
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "namespace"), ".ns", "a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"too long namespace": {
workload: mkWorkload(func(w *scheduling.Workload) {
w.Namespace = strings.Repeat("n", 64)
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "namespace"), strings.Repeat("n", 64), "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
}
for name, tc := range failureCases {
t.Run(name, func(t *testing.T) {
errs := ValidateWorkload(tc.workload)
if len(errs) == 0 {
t.Errorf("Expected failure")
return
}
if len(errs) != len(tc.expectedErrs) {
t.Errorf("Expected %d errors, got %d: %v", len(tc.expectedErrs), len(errs), errs)
return
}
matcher := field.ErrorMatcher{}.ByType().ByField()
matcher.Test(t, tc.expectedErrs, errs)
})
}
}
func TestValidateWorkloadUpdate(t *testing.T) {
successCases := map[string]struct {
old *scheduling.Workload
update *scheduling.Workload
}{
"no change": {
old: mkWorkload(),
update: mkWorkload(),
},
}
for name, tc := range successCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidateWorkloadUpdate(tc.update, tc.old)
if len(errs) != 0 {
t.Errorf("Expected success for %q: %v", name, errs)
}
}
failureCases := map[string]struct {
old *scheduling.Workload
update *scheduling.Workload
}{
"change name": {
old: mkWorkload(),
update: mkWorkload(func(w *scheduling.Workload) {
w.Name += "bar"
}),
},
"change namespace": {
old: mkWorkload(),
update: mkWorkload(func(w *scheduling.Workload) {
w.Namespace += "bar"
}),
},
}
for name, tc := range failureCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidateWorkloadUpdate(tc.update, tc.old)
if len(errs) == 0 {
t.Errorf("Expected failure for %q", name)
}
}
}
// mkWorkload produces a Workload which passes validation with no tweaks.
func mkWorkload(tweaks ...func(w *scheduling.Workload)) *scheduling.Workload {
w := &scheduling.Workload{
ObjectMeta: metav1.ObjectMeta{Name: "workload", Namespace: "ns"},
Spec: scheduling.WorkloadSpec{
ControllerRef: &scheduling.TypedLocalObjectReference{
APIGroup: "group",
Kind: "foo",
Name: "baz",
},
PodGroupTemplates: []scheduling.PodGroupTemplate{{
Name: "group1",
SchedulingPolicy: scheduling.PodGroupSchedulingPolicy{
Basic: &scheduling.BasicSchedulingPolicy{},
},
SchedulingConstraints: &scheduling.PodGroupSchedulingConstraints{
Topology: []scheduling.TopologyConstraint{
{Key: "foo"},
},
},
}, {
Name: "group2",
SchedulingPolicy: scheduling.PodGroupSchedulingPolicy{
Gang: &scheduling.GangSchedulingPolicy{
MinCount: 2,
},
},
SchedulingConstraints: &scheduling.PodGroupSchedulingConstraints{
Topology: []scheduling.TopologyConstraint{
{Key: "foo"},
},
},
}},
},
}
for _, tweak := range tweaks {
tweak(w)
}
return w
}
func TestValidatePodGroup(t *testing.T) {
successCases := map[string]*scheduling.PodGroup{
"gang policy": mkPodGroup(),
"no scheduling constraints": mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Spec.SchedulingConstraints = nil
}),
}
for name, podGroup := range successCases {
errs := ValidatePodGroup(podGroup)
if len(errs) != 0 {
t.Errorf("Expected success for %q: %v", name, errs)
}
}
failureCases := map[string]struct {
podGroup *scheduling.PodGroup
expectedErrs field.ErrorList
}{
"no name": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Name = ""
}),
expectedErrs: field.ErrorList{
field.Required(field.NewPath("metadata", "name"), "name or generateName is required"),
},
},
"invalid name": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Name = ".podGroup"
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "name"), ".podGroup", "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"too long name": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Name = strings.Repeat("w", 254)
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "name"), ".name", "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"no namespace": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Namespace = ""
}),
expectedErrs: field.ErrorList{
field.Required(field.NewPath("metadata", "namespace"), "Required value"),
},
},
"invalid namespace": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Namespace = ".ns"
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "namespace"), ".ns", "a DNS-1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
"too long namespace": {
podGroup: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Namespace = strings.Repeat("n", 64)
}),
expectedErrs: field.ErrorList{
field.Invalid(field.NewPath("metadata", "namespace"), strings.Repeat("n", 64), "a lowercase RFC 1123 subdomain must consist of lower case alphanumeric characters, '-' or '.', and must start and end with an alphanumeric character (e.g. 'example.com', regex used for validation is '[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*')"),
},
},
}
for name, tc := range failureCases {
t.Run(name, func(t *testing.T) {
errs := ValidatePodGroup(tc.podGroup)
if len(errs) == 0 {
t.Errorf("Expected failure")
return
}
if len(errs) != len(tc.expectedErrs) {
t.Errorf("Expected %d errors, got %d: %v", len(tc.expectedErrs), len(errs), errs)
return
}
matcher := field.ErrorMatcher{}.ByType().ByField()
matcher.Test(t, tc.expectedErrs, errs)
})
}
}
func TestValidatePodGroupUpdate(t *testing.T) {
successCases := map[string]struct {
old *scheduling.PodGroup
update *scheduling.PodGroup
}{
"no change": {
old: mkPodGroup(),
update: mkPodGroup(),
},
"status update": {
old: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Status.Conditions = append(pg.Status.Conditions, metav1.Condition{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: scheduling.PodGroupReasonUnschedulable,
Message: "Test status condition message",
LastTransitionTime: metav1.Now(),
})
}),
update: mkPodGroup(),
},
}
for name, tc := range successCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidatePodGroupUpdate(tc.update, tc.old)
if len(errs) != 0 {
t.Errorf("Expected success for %q: %v", name, errs)
}
}
failureCases := map[string]struct {
old *scheduling.PodGroup
update *scheduling.PodGroup
}{
"change name": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Name += "bar"
}),
},
"change namespace": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Namespace += "bar"
}),
},
}
for name, tc := range failureCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidatePodGroupUpdate(tc.update, tc.old)
if len(errs) == 0 {
t.Errorf("Expected failure for %q", name)
}
}
}
func TestValidatePodGroupStatusUpdate(t *testing.T) {
now := metav1.Now()
successCases := map[string]struct {
old *scheduling.PodGroup
update *scheduling.PodGroup
}{
"no change": {
old: mkPodGroup(),
update: mkPodGroup(),
},
"status update": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Status.Conditions = append(pg.Status.Conditions, metav1.Condition{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: scheduling.PodGroupReasonUnschedulable,
Message: "Test status condition message",
LastTransitionTime: now,
})
}),
},
"ok resource claim status": {
old: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Spec.ResourceClaims = []scheduling.PodGroupResourceClaim{
{Name: "my-claim", ResourceClaimName: new("a-claim")},
{Name: "my-other-claim", ResourceClaimName: new("a-claim")},
}
}),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Spec.ResourceClaims = []scheduling.PodGroupResourceClaim{
{Name: "my-claim", ResourceClaimName: new("a-claim")},
{Name: "my-other-claim", ResourceClaimName: new("a-claim")},
}
pg.Status.ResourceClaimStatuses = []scheduling.PodGroupResourceClaimStatus{
{Name: "my-claim", ResourceClaimName: new("foo-my-claim-12345")},
{Name: "my-other-claim", ResourceClaimName: nil},
}
}),
},
}
for name, tc := range successCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidatePodGroupUpdate(tc.update, tc.old)
if len(errs) != 0 {
t.Errorf("Expected success for %q: %v", name, errs)
}
}
failureCases := map[string]struct {
old *scheduling.PodGroup
update *scheduling.PodGroup
}{
"change name": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Name += "bar"
}),
},
"change namespace": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Namespace += "bar"
}),
},
"two conditions with the same type": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
condition := metav1.Condition{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: scheduling.PodGroupReasonUnschedulable,
Message: "Test status condition message",
LastTransitionTime: now,
}
pg.Status.Conditions = append(pg.Status.Conditions, condition, condition)
}),
},
"unrecognized condition status": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
conditions := []metav1.Condition{
{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionStatus("TrueOrFalse"),
Reason: scheduling.PodGroupReasonUnschedulable,
Message: "Test status condition message",
LastTransitionTime: now,
},
}
pg.Status.Conditions = append(pg.Status.Conditions, conditions...)
}),
},
"empty condition reason": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
conditions := []metav1.Condition{
{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Message: "Test status condition message",
LastTransitionTime: now,
},
}
pg.Status.Conditions = append(pg.Status.Conditions, conditions...)
}),
},
"improper condition reason format": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
conditions := []metav1.Condition{
{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: "Sche duled",
Message: "Test status condition message",
LastTransitionTime: now,
},
}
pg.Status.Conditions = append(pg.Status.Conditions, conditions...)
}),
},
"too long condition reason": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
conditions := []metav1.Condition{
{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: strings.Repeat("a", 1024+1),
Message: "Test status condition message",
LastTransitionTime: now,
},
}
pg.Status.Conditions = append(pg.Status.Conditions, conditions...)
}),
},
"too long condition message": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
conditions := []metav1.Condition{
{
Type: scheduling.PodGroupScheduled,
Status: metav1.ConditionFalse,
Reason: scheduling.PodGroupReasonUnschedulable,
Message: strings.Repeat("a", 32*1024+1),
LastTransitionTime: now,
},
}
pg.Status.Conditions = append(pg.Status.Conditions, conditions...)
}),
},
"non-existent resource claim in status": {
old: mkPodGroup(),
update: mkPodGroup(func(pg *scheduling.PodGroup) {
pg.Status.ResourceClaimStatuses = []scheduling.PodGroupResourceClaimStatus{
{Name: "no-such-claim", ResourceClaimName: new("my-claim")},
}
}),
},
}
for name, tc := range failureCases {
tc.old.ResourceVersion = "0"
tc.update.ResourceVersion = "1"
errs := ValidatePodGroupStatusUpdate(tc.update, tc.old)
if len(errs) == 0 {
t.Errorf("Expected failure for %q", name)
}
}
}
// mkPodGroup produces a PodGroup which passes validation with no tweaks.
func mkPodGroup(tweaks ...func(pg *scheduling.PodGroup)) *scheduling.PodGroup {
pg := &scheduling.PodGroup{
ObjectMeta: metav1.ObjectMeta{Name: "workload", Namespace: "ns"},
Spec: scheduling.PodGroupSpec{
PodGroupTemplateRef: &scheduling.PodGroupTemplateReference{
Workload: &scheduling.WorkloadPodGroupTemplateReference{
WorkloadName: "w",
PodGroupTemplateName: "t1",
},
},
SchedulingPolicy: scheduling.PodGroupSchedulingPolicy{
Gang: &scheduling.GangSchedulingPolicy{
MinCount: 5,
},
},
SchedulingConstraints: &scheduling.PodGroupSchedulingConstraints{
Topology: []scheduling.TopologyConstraint{
{Key: "foo"},
},
},
},
}
for _, tweak := range tweaks {
tweak(pg)
}
return pg
}