Merge pull request #21274 from derekwaynecarr/kubelet_eviction

Automatic merge from submit-queue

out of resource killing (memory)

Adds the core framework for low-resource killing in the kubelet.

Implements support for out of memory killing.

Related:
https://github.com/kubernetes/kubernetes/pull/18724

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pkg/api/types.go

@@ -1889,6 +1889,8 @@ const (
 	// NodeOutOfDisk means the kubelet will not accept new pods due to insufficient free disk
 	// space on the node.
 	NodeOutOfDisk NodeConditionType = "OutOfDisk"
+	// NodeMemoryPressure means the kubelet is under pressure due to insufficient available memory.
+	NodeMemoryPressure NodeConditionType = "MemoryPressure"
 )
 
 type NodeCondition struct {

pkg/api/v1/types.go

@@ -2273,6 +2273,8 @@ const (
 	// NodeOutOfDisk means the kubelet will not accept new pods due to insufficient free disk
 	// space on the node.
 	NodeOutOfDisk NodeConditionType = "OutOfDisk"
+	// NodeMemoryPressure means the kubelet is under pressure due to insufficient available memory.
+	NodeMemoryPressure NodeConditionType = "MemoryPressure"
 )
 
 // NodeCondition contains condition infromation for a node.