Add loadaware plugin

Signed-off-by: Monokaix <changxuzheng@huawei.com>

cmd/descheduler/descheduler.go

@@ -26,12 +26,15 @@ import (
 
 	"k8s.io/component-base/cli"
 	"sigs.k8s.io/descheduler/pkg/descheduler"
+	"sigs.k8s.io/descheduler/pkg/framework/pluginregistry"
 
 	"volcano.sh/volcano/cmd/descheduler/app"
+	"volcano.sh/volcano/pkg/descheduler/framework/plugins/loadaware"
 )
 
 func init() {
 	descheduler.SetupPlugins()
+	pluginregistry.Register(loadaware.LoadAwareUtilizationPluginName, loadaware.NewLoadAwareUtilization, &loadaware.LoadAwareUtilization{}, &loadaware.LoadAwareUtilizationArgs{}, loadaware.ValidateLoadAwareUtilizationArgs, loadaware.SetDefaults_LoadAwareUtilizationArgs, pluginregistry.PluginRegistry)
 }
 
 func main() {

pkg/descheduler/framework/plugins/loadaware/defaults.go

@@ -0,0 +1,69 @@
+/*
+Copyright 2024 The Volcano 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 loadaware
+
+import (
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/klog/v2"
+)
+
+func SetDefaults_LoadAwareUtilizationArgs(obj runtime.Object) {
+	args, ok := obj.(*LoadAwareUtilizationArgs)
+	if !ok {
+		klog.Errorf("obj with type %T could not parse", obj)
+	}
+	if !args.UseDeviationThresholds {
+		args.UseDeviationThresholds = false
+	}
+	if args.Thresholds == nil {
+		args.Thresholds = nil
+	}
+	if args.TargetThresholds == nil {
+		args.TargetThresholds = nil
+	}
+	if args.NumberOfNodes == 0 {
+		args.NumberOfNodes = 0
+	}
+	if args.Duration == "" {
+		args.Duration = "2m"
+	}
+	//defaultEvictor
+	if args.NodeSelector == "" {
+		args.NodeSelector = ""
+	}
+	if !args.EvictLocalStoragePods {
+		args.EvictLocalStoragePods = false
+	}
+	if !args.EvictSystemCriticalPods {
+		args.EvictSystemCriticalPods = false
+	}
+	if !args.IgnorePvcPods {
+		args.IgnorePvcPods = false
+	}
+	if !args.EvictFailedBarePods {
+		args.EvictFailedBarePods = false
+	}
+	if args.LabelSelector == nil {
+		args.LabelSelector = nil
+	}
+	if args.PriorityThreshold == nil {
+		args.PriorityThreshold = nil
+	}
+	if !args.NodeFit {
+		args.NodeFit = false
+	}
+}

pkg/descheduler/framework/plugins/loadaware/defaults_test.go

@@ -0,0 +1,127 @@
+/*
+Copyright 2024 The Volcano 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 loadaware
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"
+	"sigs.k8s.io/descheduler/pkg/api"
+)
+
+func TestSetDefaults_LowNodeUtilizationArgs(t *testing.T) {
+	tests := []struct {
+		name string
+		in   runtime.Object
+		want runtime.Object
+	}{
+		{
+			name: "LowNodeUtilizationArgs empty",
+			in:   &LoadAwareUtilizationArgs{},
+			want: &LoadAwareUtilizationArgs{
+				UseDeviationThresholds: false,
+				Thresholds:             nil,
+				TargetThresholds:       nil,
+				NumberOfNodes:          0,
+			},
+		},
+		{
+			name: "LowNodeUtilizationArgs with value",
+			in: &LoadAwareUtilizationArgs{
+				UseDeviationThresholds: true,
+				Thresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    20,
+					v1.ResourceMemory: 120,
+				},
+				TargetThresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    80,
+					v1.ResourceMemory: 80,
+				},
+				NumberOfNodes: 10,
+			},
+			want: &LoadAwareUtilizationArgs{
+				UseDeviationThresholds: true,
+				Thresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    20,
+					v1.ResourceMemory: 120,
+				},
+				TargetThresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    80,
+					v1.ResourceMemory: 80,
+				},
+				NumberOfNodes: 10,
+			},
+		},
+	}
+	for _, tc := range tests {
+		scheme := runtime.NewScheme()
+		utilruntime.Must(AddToScheme(scheme))
+		t.Run(tc.name, func(t *testing.T) {
+			scheme.Default(tc.in)
+			if diff := cmp.Diff(tc.in, tc.want); diff != "" {
+				t.Errorf("Got unexpected defaults (-want, +got):\n%s", diff)
+			}
+		})
+	}
+}
+
+func TestSetDefaults_HighNodeUtilizationArgs(t *testing.T) {
+	tests := []struct {
+		name string
+		in   runtime.Object
+		want runtime.Object
+	}{
+		{
+			name: "HighNodeUtilizationArgs empty",
+			in:   &LoadAwareUtilizationArgs{},
+			want: &LoadAwareUtilizationArgs{
+				Thresholds:    nil,
+				NumberOfNodes: 0,
+			},
+		},
+		{
+			name: "HighNodeUtilizationArgs with value",
+			in: &LoadAwareUtilizationArgs{
+				Thresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    20,
+					v1.ResourceMemory: 120,
+				},
+				NumberOfNodes: 10,
+			},
+			want: &LoadAwareUtilizationArgs{
+				Thresholds: api.ResourceThresholds{
+					v1.ResourceCPU:    20,
+					v1.ResourceMemory: 120,
+				},
+				NumberOfNodes: 10,
+			},
+		},
+	}
+	for _, tc := range tests {
+		scheme := runtime.NewScheme()
+		utilruntime.Must(AddToScheme(scheme))
+		t.Run(tc.name, func(t *testing.T) {
+			scheme.Default(tc.in)
+			if diff := cmp.Diff(tc.in, tc.want); diff != "" {
+				t.Errorf("Got unexpected defaults (-want, +got):\n%s", diff)
+			}
+		})
+	}
+}