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Code Packages Releases Activity

Completed evictSystemCriticalPods feature

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This commit is contained in:
RyanDevlin
2021-03-10 16:23:52 -05:00
parent dbcc20f37f
commit b5d7219391
18 changed files with 462 additions and 208 deletions
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56
pkg/utils/pod.go
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@@ -5,6 +5,7 @@ import (
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/component-base/featuregate"
"k8s.io/klog/v2"
@@ -82,7 +83,7 @@ func GetResourceRequestQuantity(pod *v1.Pod, resourceName v1.ResourceName) resou
return requestQuantity
}
// IsMirrorPod returns true if the passed Pod is a Mirror Pod.
// IsMirrorPod returns true if the pod is a Mirror Pod.
func IsMirrorPod(pod *v1.Pod) bool {
_, ok := pod.Annotations[v1.MirrorPodAnnotationKey]
return ok
@@ -94,6 +95,42 @@ func IsStaticPod(pod *v1.Pod) bool {
return err == nil && source != "api"
}
// IsCriticalPriorityPod returns true if the pod has critical priority.
func IsCriticalPriorityPod(pod *v1.Pod) bool {
return pod.Spec.Priority != nil && *pod.Spec.Priority >= SystemCriticalPriority
}
// IsDaemonsetPod returns true if the pod is a IsDaemonsetPod.
func IsDaemonsetPod(ownerRefList []metav1.OwnerReference) bool {
for _, ownerRef := range ownerRefList {
if ownerRef.Kind == "DaemonSet" {
return true
}
}
return false
}
// IsPodWithLocalStorage returns true if the pod has local storage.
func IsPodWithLocalStorage(pod *v1.Pod) bool {
for _, volume := range pod.Spec.Volumes {
if volume.HostPath != nil || volume.EmptyDir != nil {
return true
}
}
return false
}
// IsPodWithLocalStorage returns true if the pod has claimed a persistent volume.
func IsPodWithPVC(pod *v1.Pod) bool {
for _, volume := range pod.Spec.Volumes {
if volume.PersistentVolumeClaim != nil {
return true
}
}
return false
}
// GetPodSource returns the source of the pod based on the annotation.
func GetPodSource(pod *v1.Pod) (string, error) {
if pod.Annotations != nil {
@@ -104,23 +141,6 @@ func GetPodSource(pod *v1.Pod) (string, error) {
return "", fmt.Errorf("cannot get source of pod %q", pod.UID)
}
// IsCriticalPod returns true if the pod is a static or mirror pod.
func IsCriticalPod(pod *v1.Pod) bool {
if IsStaticPod(pod) {
return true
}
if IsMirrorPod(pod) {
return true
}
if pod.Spec.Priority != nil && *pod.Spec.Priority >= SystemCriticalPriority {
return true
}
return false
}
// PodRequestsAndLimits returns a dictionary of all defined resources summed up for all
// containers of the pod. If PodOverhead feature is enabled, pod overhead is added to the
// total container resource requests and to the total container limits which have a