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Stop defaulting container ResizePolicy

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This commit is contained in:
Tim Allclair 2024-11-21 09:51:31 -08:00
parent 40f222b620
commit da4dc0aec7
3 changed files with 5 additions and 241 deletions
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23
pkg/apis/core/v1/defaults.go
View File

@ -182,29 +182,6 @@ func SetDefaults_Pod(obj *v1.Pod) {
}
}
}
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScaling) &&
obj.Spec.Containers[i].Resources.Requests != nil {
// For normal containers, set resize restart policy to default value (NotRequired), if not specified.
resizePolicySpecified := make(map[v1.ResourceName]bool)
for _, p := range obj.Spec.Containers[i].ResizePolicy {
resizePolicySpecified[p.ResourceName] = true
}
setDefaultResizePolicy := func(resourceName v1.ResourceName) {
if _, found := resizePolicySpecified[resourceName]; !found {
obj.Spec.Containers[i].ResizePolicy = append(obj.Spec.Containers[i].ResizePolicy,
v1.ContainerResizePolicy{
ResourceName: resourceName,
RestartPolicy: v1.NotRequired,
})
}
}
if _, exists := obj.Spec.Containers[i].Resources.Requests[v1.ResourceCPU]; exists {
setDefaultResizePolicy(v1.ResourceCPU)
}
if _, exists := obj.Spec.Containers[i].Resources.Requests[v1.ResourceMemory]; exists {
setDefaultResizePolicy(v1.ResourceMemory)
}
}
}
for i := range obj.Spec.InitContainers {
if obj.Spec.InitContainers[i].Resources.Limits != nil {

212
pkg/apis/core/v1/defaults_test.go
View File

@ -2982,218 +2982,6 @@ func TestSetDefaultServiceInternalTrafficPolicy(t *testing.T) {
}
}
func TestSetDefaultResizePolicy(t *testing.T) {
// verify we default to NotRequired restart policy for resize when resources are specified
featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.InPlacePodVerticalScaling, true)
for desc, tc := range map[string]struct {
testContainer v1.Container
expectedResizePolicy []v1.ContainerResizePolicy
}{
"CPU and memory limits are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
v1.ResourceMemory: resource.MustParse("200Mi"),
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.NotRequired,
},
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.NotRequired,
},
},
},
"CPU requests are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.NotRequired,
},
},
},
"Memory limits are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceMemory: resource.MustParse("200Mi"),
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.NotRequired,
},
},
},
"No resources are specified": {
testContainer: v1.Container{Name: "besteffort"},
expectedResizePolicy: nil,
},
"CPU and memory limits are specified with restartContainer resize policy for memory": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
v1.ResourceMemory: resource.MustParse("200Mi"),
},
},
ResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.NotRequired,
},
},
},
"CPU requests and memory limits are specified with restartContainer resize policy for CPU": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceMemory: resource.MustParse("200Mi"),
},
Requests: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
},
},
ResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.RestartContainer,
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.RestartContainer,
},
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.NotRequired,
},
},
},
"CPU and memory requests are specified with restartContainer resize policy for both": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
v1.ResourceMemory: resource.MustParse("200Mi"),
},
},
ResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.RestartContainer,
},
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.RestartContainer,
},
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
},
},
"Ephemeral storage limits are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceEphemeralStorage: resource.MustParse("500Mi"),
},
},
},
expectedResizePolicy: nil,
},
"Ephemeral storage requests and CPU limits are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceCPU: resource.MustParse("100m"),
},
Requests: v1.ResourceList{
v1.ResourceEphemeralStorage: resource.MustParse("500Mi"),
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceCPU,
RestartPolicy: v1.NotRequired,
},
},
},
"Ephemeral storage requests and limits, memory requests with restartContainer policy are specified": {
testContainer: v1.Container{
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceEphemeralStorage: resource.MustParse("500Mi"),
},
Requests: v1.ResourceList{
v1.ResourceEphemeralStorage: resource.MustParse("500Mi"),
v1.ResourceMemory: resource.MustParse("200Mi"),
},
},
ResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
},
},
expectedResizePolicy: []v1.ContainerResizePolicy{
{
ResourceName: v1.ResourceMemory,
RestartPolicy: v1.RestartContainer,
},
},
},
} {
t.Run(desc, func(t *testing.T) {
testPod := v1.Pod{}
testPod.Spec.Containers = append(testPod.Spec.Containers, tc.testContainer)
output := roundTrip(t, runtime.Object(&testPod))
pod2 := output.(*v1.Pod)
if !cmp.Equal(pod2.Spec.Containers[0].ResizePolicy, tc.expectedResizePolicy) {
t.Errorf("expected resize policy %+v, but got %+v", tc.expectedResizePolicy, pod2.Spec.Containers[0].ResizePolicy)
}
})
}
}
func TestSetDefaults_Volume(t *testing.T) {
featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ImageVolume, true)
for desc, tc := range map[string]struct {

11
pkg/kubelet/kuberuntime/kuberuntime_manager.go
View File

@ -617,17 +617,16 @@ func (m *kubeGenericRuntimeManager) computePodResizeAction(pod *v1.Pod, containe
return true
}
resizePolicy := make(map[v1.ResourceName]v1.ResourceResizeRestartPolicy)
for _, pol := range container.ResizePolicy {
resizePolicy[pol.ResourceName] = pol.RestartPolicy
}
determineContainerResize := func(rName v1.ResourceName, specValue, statusValue int64) (resize, restart bool) {
if specValue == statusValue {
return false, false
}
if resizePolicy[rName] == v1.RestartContainer {
return true, true
for _, policy := range container.ResizePolicy {
if policy.ResourceName == rName {
return true, policy.RestartPolicy == v1.RestartContainer
}
}
// If a resource policy isn't set, the implicit default is NotRequired.
return true, false
}
markContainerForUpdate := func(rName v1.ResourceName, specValue, statusValue int64) {