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Implement pod deletion cost

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This commit is contained in:
Abdullah Gharaibeh
2021-02-17 15:39:42 -05:00
parent 35c233f18d
commit d7e80ab038
15 changed files with 292 additions and 86 deletions
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10
pkg/apis/core/annotation_key_constants.go
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@@ -106,4 +106,14 @@ const (
// This annotation is used by the Attach Detach Controller to determine whether to use the in-tree or
// CSI Backend for a volume plugin on a specific node.
MigratedPluginsAnnotationKey = "storage.alpha.kubernetes.io/migrated-plugins"
// PodDeletionCost can be used to set to an int32 that represent the cost of deleting
// a pod compared to other pods belonging to the same ReplicaSet. Pods with lower
// deletion cost are preferred to be deleted before pods with higher deletion cost.
// Note that this is honored on a best-effort basis, and so it does not offer guarantees on
// pod deletion order.
// The implicit deletion cost for pods that don't set the annotation is 0, negative values are permitted.
//
// This annotation is alpha-level and is only honored when PodDeletionCost feature is enabled.
PodDeletionCost = "controller.kubernetes.io/pod-deletion-cost"
)