[migration phase 1] Implement CheckVolumeBinding as a filter plugin

pkg/scheduler/api/compatibility/compatibility_test.go

@@ -570,7 +570,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxAzureDiskVolumeCount",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -589,6 +588,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -671,7 +671,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxAzureDiskVolumeCount",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -690,6 +689,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -784,7 +784,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxAzureDiskVolumeCount",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -804,6 +803,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -900,7 +900,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxCSIVolumeCountPred",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -920,6 +919,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -1016,7 +1016,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxCinderVolumeCount",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -1036,6 +1035,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -1136,7 +1136,6 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"MaxCinderVolumeCount",
 				"MatchInterPodAffinity",
 				"GeneralPredicates",
-				"CheckVolumeBinding",
 				"TestServiceAffinity",
 				"TestLabelsPresence",
 			),
@@ -1156,6 +1155,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 				"FilterPlugin": {
 					{Name: "NodeName"},
 					{Name: "TaintToleration"},
+					{Name: "VolumeBinding"},
 				},
 				"ScorePlugin": {{Name: "TaintToleration", Weight: 2}},
 			},
@@ -1182,6 +1182,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 	filterToPredicateMap := map[string]string{
 		"TaintToleration": "PodToleratesNodeTaints",
 		"NodeName":        "HostName",
+		"VolumeBinding":   "CheckVolumeBinding",
 	}
 	scoreToPriorityMap := map[string]string{
 		"TaintToleration": "TaintTolerationPriority",

pkg/scheduler/framework/plugins/BUILD

@@ -12,9 +12,11 @@ go_library(
         "//pkg/scheduler/apis/config:go_default_library",
         "//pkg/scheduler/framework/plugins/nodename:go_default_library",
         "//pkg/scheduler/framework/plugins/tainttoleration:go_default_library",
+        "//pkg/scheduler/framework/plugins/volumebinding:go_default_library",
         "//pkg/scheduler/framework/v1alpha1:go_default_library",
         "//pkg/scheduler/internal/cache:go_default_library",
         "//pkg/scheduler/volumebinder:go_default_library",
+        "//staging/src/k8s.io/apimachinery/pkg/runtime:go_default_library",
         "//staging/src/k8s.io/client-go/listers/core/v1:go_default_library",
         "//staging/src/k8s.io/client-go/listers/storage/v1:go_default_library",
     ],
@@ -35,6 +37,7 @@ filegroup(
         "//pkg/scheduler/framework/plugins/migration:all-srcs",
         "//pkg/scheduler/framework/plugins/nodename:all-srcs",
         "//pkg/scheduler/framework/plugins/tainttoleration:all-srcs",
+        "//pkg/scheduler/framework/plugins/volumebinding:all-srcs",
     ],
     tags = ["automanaged"],
     visibility = ["//visibility:public"],

pkg/scheduler/framework/plugins/default_registry.go

@@ -19,6 +19,7 @@ package plugins
 import (
 	"fmt"
 
+	"k8s.io/apimachinery/pkg/runtime"
 	corelisters "k8s.io/client-go/listers/core/v1"
 	storagelistersv1 "k8s.io/client-go/listers/storage/v1"
 	"k8s.io/kubernetes/pkg/scheduler/algorithm"
@@ -27,6 +28,7 @@ import (
 	"k8s.io/kubernetes/pkg/scheduler/apis/config"
 	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/nodename"
 	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/tainttoleration"
+	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/volumebinding"
 	framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
 	internalcache "k8s.io/kubernetes/pkg/scheduler/internal/cache"
 	"k8s.io/kubernetes/pkg/scheduler/volumebinder"
@@ -53,6 +55,9 @@ func NewDefaultRegistry(args *RegistryArgs) framework.Registry {
 	return framework.Registry{
 		tainttoleration.Name: tainttoleration.New,
 		nodename.Name:        nodename.New,
+		volumebinding.Name: func(_ *runtime.Unknown, _ framework.FrameworkHandle) (framework.Plugin, error) {
+			return volumebinding.NewFromVolumeBinder(args.VolumeBinder), nil
+		},
 	}
 }
 
@@ -90,6 +95,11 @@ func NewDefaultConfigProducerRegistry() *ConfigProducerRegistry {
 			plugins.Filter = appendToPluginSet(plugins.Filter, nodename.Name, nil)
 			return
 		})
+	registry.RegisterPredicate(predicates.CheckVolumeBindingPred,
+		func(args ConfigProducerArgs) (plugins config.Plugins, pluginConfig []config.PluginConfig) {
+			plugins.Filter = appendToPluginSet(plugins.Filter, volumebinding.Name, nil)
+			return
+		})
 
 	registry.RegisterPriority(priorities.TaintTolerationPriority,
 		func(args ConfigProducerArgs) (plugins config.Plugins, pluginConfig []config.PluginConfig) {

pkg/scheduler/framework/plugins/volumebinding/BUILD

@@ -0,0 +1,30 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["volume_binding.go"],
+    importpath = "k8s.io/kubernetes/pkg/scheduler/framework/plugins/volumebinding",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//pkg/scheduler/algorithm/predicates:go_default_library",
+        "//pkg/scheduler/framework/plugins/migration:go_default_library",
+        "//pkg/scheduler/framework/v1alpha1:go_default_library",
+        "//pkg/scheduler/nodeinfo:go_default_library",
+        "//pkg/scheduler/volumebinder:go_default_library",
+        "//staging/src/k8s.io/api/core/v1:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

pkg/scheduler/framework/plugins/volumebinding/volume_binding.go

@@ -0,0 +1,54 @@
+/*
+Copyright 2019 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 volumebinding
+
+import (
+	v1 "k8s.io/api/core/v1"
+	"k8s.io/kubernetes/pkg/scheduler/algorithm/predicates"
+	"k8s.io/kubernetes/pkg/scheduler/framework/plugins/migration"
+	framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
+	schedulernodeinfo "k8s.io/kubernetes/pkg/scheduler/nodeinfo"
+	"k8s.io/kubernetes/pkg/scheduler/volumebinder"
+)
+
+// VolumeBinding is a plugin that binds pod volumes in scheduling.
+type VolumeBinding struct {
+	predicate predicates.FitPredicate
+}
+
+var _ framework.FilterPlugin = &VolumeBinding{}
+
+// Name is the name of the plugin used in Registry and configurations.
+const Name = "VolumeBinding"
+
+// Name returns name of the plugin. It is used in logs, etc.
+func (pl *VolumeBinding) Name() string {
+	return Name
+}
+
+// Filter invoked at the filter extension point.
+func (pl *VolumeBinding) Filter(cs *framework.CycleState, pod *v1.Pod, nodeInfo *schedulernodeinfo.NodeInfo) *framework.Status {
+	_, reasons, err := pl.predicate(pod, nil, nodeInfo)
+	return migration.PredicateResultToFrameworkStatus(reasons, err)
+}
+
+// NewFromVolumeBinder initializes a new plugin with volume binder and returns it.
+func NewFromVolumeBinder(volumeBinder *volumebinder.VolumeBinder) framework.Plugin {
+	return &VolumeBinding{
+		predicate: predicates.NewVolumeBindingPredicate(volumeBinder),
+	}
+}

test/integration/scheduler/scheduler_test.go

@@ -130,7 +130,6 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
 				"CheckNodeDiskPressure",
 				"CheckNodeMemoryPressure",
 				"CheckNodePIDPressure",
-				"CheckVolumeBinding",
 				"GeneralPredicates",
 				"MatchInterPodAffinity",
 				"MaxAzureDiskVolumeCount",
@@ -150,7 +149,7 @@ func TestSchedulerCreationFromConfigMap(t *testing.T) {
 				"ImageLocalityPriority",
 			),
 			expectedPlugins: map[string][]kubeschedulerconfig.Plugin{
-				"FilterPlugin": {{Name: "TaintToleration"}},
+				"FilterPlugin": {{Name: "TaintToleration"}, {Name: "VolumeBinding"}},
 				"ScorePlugin":  {{Name: "TaintToleration", Weight: 1}},
 			},
 		},
@@ -197,7 +196,6 @@ kind: Policy
 				"CheckNodeDiskPressure",
 				"CheckNodeMemoryPressure",
 				"CheckNodePIDPressure",
-				"CheckVolumeBinding",
 				"GeneralPredicates",
 				"MatchInterPodAffinity",
 				"MaxAzureDiskVolumeCount",
@@ -217,7 +215,7 @@ kind: Policy
 				"ImageLocalityPriority",
 			),
 			expectedPlugins: map[string][]kubeschedulerconfig.Plugin{
-				"FilterPlugin": {{Name: "TaintToleration"}},
+				"FilterPlugin": {{Name: "TaintToleration"}, {Name: "VolumeBinding"}},
 				"ScorePlugin":  {{Name: "TaintToleration", Weight: 1}},
 			},
 		},