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Always report pod status resources consistent with the current pod sync

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This commit is contained in:
Tim Allclair
2025-03-05 16:01:03 -08:00
parent cd451c6a36
commit ed326fea13
2 changed files with 20 additions and 17 deletions
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10
pkg/kubelet/kubelet.go
View File

@@ -2065,6 +2065,11 @@ func (kl *Kubelet) SyncTerminatingPod(_ context.Context, pod *v1.Pod, podStatus
klog.V(4).InfoS("SyncTerminatingPod enter", "pod", klog.KObj(pod), "podUID", pod.UID)
defer klog.V(4).InfoS("SyncTerminatingPod exit", "pod", klog.KObj(pod), "podUID", pod.UID)
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScaling) {
// We don't evaluate pending resizes for terminating pods - proceed with the allocated resources.
pod, _ = kl.allocationManager.UpdatePodFromAllocation(pod)
}
apiPodStatus := kl.generateAPIPodStatus(pod, podStatus, false)
if podStatusFn != nil {
podStatusFn(&apiPodStatus)
@@ -2210,6 +2215,11 @@ func (kl *Kubelet) SyncTerminatedPod(ctx context.Context, pod *v1.Pod, podStatus
klog.V(4).InfoS("SyncTerminatedPod enter", "pod", klog.KObj(pod), "podUID", pod.UID)
defer klog.V(4).InfoS("SyncTerminatedPod exit", "pod", klog.KObj(pod), "podUID", pod.UID)
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScaling) {
// Terminated pods can no longer be resized. Proceed with the allocated resources.
pod, _ = kl.allocationManager.UpdatePodFromAllocation(pod)
}
// generate the final status of the pod
// TODO: should we simply fold this into TerminatePod? that would give a single pod update
apiPodStatus := kl.generateAPIPodStatus(pod, podStatus, true)

27
pkg/kubelet/kubelet_pods.go
View File

@@ -2130,7 +2130,8 @@ func (kl *Kubelet) convertToAPIContainerStatuses(pod *v1.Pod, podStatus *kubecon
return status
}
convertContainerStatusResources := func(cName string, status *v1.ContainerStatus, cStatus *kubecontainer.Status, oldStatuses map[string]v1.ContainerStatus) *v1.ResourceRequirements {
convertContainerStatusResources := func(allocatedContainer *v1.Container, status *v1.ContainerStatus, cStatus *kubecontainer.Status, oldStatuses map[string]v1.ContainerStatus) *v1.ResourceRequirements {
cName := allocatedContainer.Name
// oldStatus should always exist if container is running
oldStatus, oldStatusFound := oldStatuses[cName]
@@ -2147,17 +2148,9 @@ func (kl *Kubelet) convertToAPIContainerStatuses(pod *v1.Pod, podStatus *kubecon
}
}
// Always set the status to the latest allocated resources, even if it differs from the
// allocation used by the current sync loop.
alloc, found := kl.allocationManager.GetContainerResourceAllocation(pod.UID, cName)
if !found {
// This case is expected for non-resizable containers (ephemeral & non-restartable init containers).
// Don't set status.Resources in this case.
return nil
}
if cStatus.State != kubecontainer.ContainerStateRunning {
// If the container isn't running, just use the allocated resources.
return &alloc
return allocatedContainer.Resources.DeepCopy()
}
if oldStatus.Resources == nil {
oldStatus.Resources = &v1.ResourceRequirements{}
@@ -2166,7 +2159,7 @@ func (kl *Kubelet) convertToAPIContainerStatuses(pod *v1.Pod, podStatus *kubecon
// Status resources default to the allocated resources.
// For non-running containers this will be the reported values.
// For non-resizable resources, these values will also be used.
resources := alloc
resources := allocatedContainer.Resources.DeepCopy()
if resources.Limits != nil {
if cStatus.Resources != nil && cStatus.Resources.CPULimit != nil {
// If both the allocated & actual resources are at or below the minimum effective limit, preserve the
@@ -2197,7 +2190,7 @@ func (kl *Kubelet) convertToAPIContainerStatuses(pod *v1.Pod, podStatus *kubecon
}
}
return &resources
return resources
}
convertContainerStatusUser := func(cStatus *kubecontainer.Status) *v1.ContainerUser {
@@ -2366,11 +2359,11 @@ func (kl *Kubelet) convertToAPIContainerStatuses(pod *v1.Pod, podStatus *kubecon
}
status := convertContainerStatus(cStatus, oldStatusPtr)
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScaling) {
status.Resources = convertContainerStatusResources(cName, status, cStatus, oldStatuses)
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScalingAllocatedStatus) {
if alloc, found := kl.allocationManager.GetContainerResourceAllocation(pod.UID, cName); found {
status.AllocatedResources = alloc.Requests
allocatedContainer := kubecontainer.GetContainerSpec(pod, cName)
if allocatedContainer != nil {
status.Resources = convertContainerStatusResources(allocatedContainer, status, cStatus, oldStatuses)
if utilfeature.DefaultFeatureGate.Enabled(features.InPlacePodVerticalScalingAllocatedStatus) {
status.AllocatedResources = allocatedContainer.Resources.Requests
}
}
}