move NodeLabel priority logic to its Score plugin

pkg/scheduler/algorithm/priorities/BUILD

@@ -17,7 +17,6 @@ go_library(
         "metadata.go",
         "most_requested.go",
         "node_affinity.go",
-        "node_label.go",
         "node_prefer_avoid_pods.go",
         "priorities.go",
         "reduce.go",

pkg/scheduler/algorithm/priorities/node_label.go

@@ -1,70 +0,0 @@
-/*
-Copyright 2016 The Kubernetes Authors.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-
-package priorities
-
-import (
-	"fmt"
-
-	v1 "k8s.io/api/core/v1"
-	"k8s.io/apimachinery/pkg/labels"
-	framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
-	schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
-)
-
-// NodeLabelPrioritizer contains information to calculate node label priority.
-type NodeLabelPrioritizer struct {
-	presentLabelsPreference []string
-	absentLabelsPreference  []string
-}
-
-// NewNodeLabelPriority creates a NodeLabelPrioritizer.
-func NewNodeLabelPriority(presentLabelsPreference []string, absentLabelsPreference []string) (PriorityMapFunction, PriorityReduceFunction) {
-	labelPrioritizer := &NodeLabelPrioritizer{
-		presentLabelsPreference: presentLabelsPreference,
-		absentLabelsPreference:  absentLabelsPreference,
-	}
-	return labelPrioritizer.CalculateNodeLabelPriorityMap, nil
-}
-
-// CalculateNodeLabelPriorityMap checks whether a particular label exists on a node or not, regardless of its value.
-// If presence is true, prioritizes nodes that have the specified label, regardless of value.
-// If presence is false, prioritizes nodes that do not have the specified label.
-func (n *NodeLabelPrioritizer) CalculateNodeLabelPriorityMap(pod *v1.Pod, meta interface{}, nodeInfo *schedulernodeinfo.NodeInfo) (framework.NodeScore, error) {
-	node := nodeInfo.Node()
-	if node == nil {
-		return framework.NodeScore{}, fmt.Errorf("node not found")
-	}
-
-	score := int64(0)
-	for _, label := range n.presentLabelsPreference {
-		if labels.Set(node.Labels).Has(label) {
-			score += framework.MaxNodeScore
-		}
-	}
-	for _, label := range n.absentLabelsPreference {
-		if !labels.Set(node.Labels).Has(label) {
-			score += framework.MaxNodeScore
-		}
-	}
-	// Take average score for each label to ensure the score doesn't exceed MaxNodeScore.
-	score /= int64(len(n.presentLabelsPreference) + len(n.absentLabelsPreference))
-
-	return framework.NodeScore{
-		Name:  node.Name,
-		Score: score,
-	}, nil
-}