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Merge pull request #57369 from vikaschoudhary16/revert-to-limits

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Automatic merge from submit-queue (batch tested with PRs 57591, 57369). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Revert back #57278

**What this PR does / why we need it**:
This PR reverts back to behavior of scanning Limits.

**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
Related #
#57276
#57170
**Special notes for your reviewer**:

**Release note**:

```release-note
None
```
/sig node

/cc @vishh @ConnorDoyle @jiayingz
This commit is contained in:
Kubernetes Submit Queue 2017-12-24 23:37:37 -08:00 committed by GitHub
commit 7dd82519da
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2 changed files with 15 additions and 10 deletions
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9
pkg/kubelet/cm/deviceplugin/manager.go
View File

@ -550,10 +550,11 @@ func (m *ManagerImpl) allocateContainerResources(pod *v1.Pod, container *v1.Cont
podUID := string(pod.UID)
contName := container.Name
allocatedDevicesUpdated := false
// NOTE: Skipping the Resources.Limits is safe here because:
// 1. If container Spec mentions Limits only, implicitly Requests, equal to Limits, will get added to the Spec.
// 2. If container Spec mentions Limits, which are greater than or less than Requests, will fail at validation.
for k, v := range container.Resources.Requests {
// Extended resources are not allowed to be overcommitted.
// Since device plugin advertises extended resources,
// therefore Requests must be equal to Limits and iterating
// over the Limits should be sufficient.
for k, v := range container.Resources.Limits {
resource := string(k)
needed := int(v.Value())
glog.V(3).Infof("needs %d %s", needed, resource)

16
pkg/kubelet/cm/deviceplugin/manager_test.go
View File

@ -366,7 +366,7 @@ func (m *MockEndpoint) allocate(devs []string) (*pluginapi.AllocateResponse, err
return nil, nil
}
func makePod(requests v1.ResourceList) *v1.Pod {
func makePod(limits v1.ResourceList) *v1.Pod {
return &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
UID: uuid.NewUUID(),
@ -375,7 +375,7 @@ func makePod(requests v1.ResourceList) *v1.Pod {
Containers: []v1.Container{
{
Resources: v1.ResourceRequirements{
Requests: requests,
Limits: limits,
},
},
},
@ -616,7 +616,7 @@ func TestInitContainerDeviceAllocation(t *testing.T) {
{
Name: string(uuid.NewUUID()),
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
Limits: v1.ResourceList{
v1.ResourceName(res1.resourceName): res2.resourceQuantity,
},
},
@ -624,7 +624,7 @@ func TestInitContainerDeviceAllocation(t *testing.T) {
{
Name: string(uuid.NewUUID()),
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
Limits: v1.ResourceList{
v1.ResourceName(res1.resourceName): res1.resourceQuantity,
},
},
@ -634,7 +634,7 @@ func TestInitContainerDeviceAllocation(t *testing.T) {
{
Name: string(uuid.NewUUID()),
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
Limits: v1.ResourceList{
v1.ResourceName(res1.resourceName): res2.resourceQuantity,
v1.ResourceName(res2.resourceName): res2.resourceQuantity,
},
@ -643,7 +643,7 @@ func TestInitContainerDeviceAllocation(t *testing.T) {
{
Name: string(uuid.NewUUID()),
Resources: v1.ResourceRequirements{
Requests: v1.ResourceList{
Limits: v1.ResourceList{
v1.ResourceName(res1.resourceName): res2.resourceQuantity,
v1.ResourceName(res2.resourceName): res2.resourceQuantity,
},
@ -664,6 +664,10 @@ func TestInitContainerDeviceAllocation(t *testing.T) {
initCont2Devices := testManager.podDevices.containerDevices(podUID, initCont2, res1.resourceName)
normalCont1Devices := testManager.podDevices.containerDevices(podUID, normalCont1, res1.resourceName)
normalCont2Devices := testManager.podDevices.containerDevices(podUID, normalCont2, res1.resourceName)
as.Equal(1, initCont1Devices.Len())
as.Equal(2, initCont2Devices.Len())
as.Equal(1, normalCont1Devices.Len())
as.Equal(1, normalCont2Devices.Len())
as.True(initCont2Devices.IsSuperset(initCont1Devices))
as.True(initCont2Devices.IsSuperset(normalCont1Devices))
as.True(initCont2Devices.IsSuperset(normalCont2Devices))