mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-01-19 11:19:30 +00:00
131 lines
4.0 KiB
Go
131 lines
4.0 KiB
Go
/*
|
|
Copyright 2020 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 profile holds the definition of a scheduling Profile.
|
|
package profile
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
|
|
"github.com/google/go-cmp/cmp"
|
|
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/client-go/kubernetes/scheme"
|
|
"k8s.io/client-go/tools/events"
|
|
"k8s.io/kubernetes/pkg/scheduler/apis/config"
|
|
"k8s.io/kubernetes/pkg/scheduler/framework"
|
|
frameworkruntime "k8s.io/kubernetes/pkg/scheduler/framework/runtime"
|
|
)
|
|
|
|
// RecorderFactory builds an EventRecorder for a given scheduler name.
|
|
type RecorderFactory func(string) events.EventRecorder
|
|
|
|
// newProfile builds a Profile for the given configuration.
|
|
func newProfile(ctx context.Context, cfg config.KubeSchedulerProfile, r frameworkruntime.Registry, recorderFact RecorderFactory,
|
|
opts ...frameworkruntime.Option) (framework.Framework, error) {
|
|
recorder := recorderFact(cfg.SchedulerName)
|
|
opts = append(opts, frameworkruntime.WithEventRecorder(recorder))
|
|
return frameworkruntime.NewFramework(ctx, r, &cfg, opts...)
|
|
}
|
|
|
|
// Map holds frameworks indexed by scheduler name.
|
|
type Map map[string]framework.Framework
|
|
|
|
// NewMap builds the frameworks given by the configuration, indexed by name.
|
|
func NewMap(ctx context.Context, cfgs []config.KubeSchedulerProfile, r frameworkruntime.Registry, recorderFact RecorderFactory,
|
|
opts ...frameworkruntime.Option) (Map, error) {
|
|
m := make(Map)
|
|
v := cfgValidator{m: m}
|
|
|
|
for _, cfg := range cfgs {
|
|
p, err := newProfile(ctx, cfg, r, recorderFact, opts...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("creating profile for scheduler name %s: %v", cfg.SchedulerName, err)
|
|
}
|
|
if err := v.validate(cfg, p); err != nil {
|
|
return nil, err
|
|
}
|
|
m[cfg.SchedulerName] = p
|
|
}
|
|
return m, nil
|
|
}
|
|
|
|
// HandlesSchedulerName returns whether a profile handles the given scheduler name.
|
|
func (m Map) HandlesSchedulerName(name string) bool {
|
|
_, ok := m[name]
|
|
return ok
|
|
}
|
|
|
|
// Close closes all frameworks registered in this map.
|
|
func (m Map) Close() error {
|
|
var errs []error
|
|
for name, f := range m {
|
|
err := f.Close()
|
|
if err != nil {
|
|
errs = append(errs, fmt.Errorf("framework %s failed to close: %w", name, err))
|
|
}
|
|
}
|
|
return errors.Join(errs...)
|
|
}
|
|
|
|
// NewRecorderFactory returns a RecorderFactory for the broadcaster.
|
|
func NewRecorderFactory(b events.EventBroadcaster) RecorderFactory {
|
|
return func(name string) events.EventRecorder {
|
|
return b.NewRecorder(scheme.Scheme, name)
|
|
}
|
|
}
|
|
|
|
type cfgValidator struct {
|
|
m Map
|
|
queueSort string
|
|
queueSortArgs runtime.Object
|
|
}
|
|
|
|
func (v *cfgValidator) validate(cfg config.KubeSchedulerProfile, f framework.Framework) error {
|
|
if len(f.ProfileName()) == 0 {
|
|
return errors.New("scheduler name is needed")
|
|
}
|
|
if cfg.Plugins == nil {
|
|
return fmt.Errorf("plugins required for profile with scheduler name %q", f.ProfileName())
|
|
}
|
|
if v.m[f.ProfileName()] != nil {
|
|
return fmt.Errorf("duplicate profile with scheduler name %q", f.ProfileName())
|
|
}
|
|
|
|
queueSort := f.ListPlugins().QueueSort.Enabled[0].Name
|
|
var queueSortArgs runtime.Object
|
|
for _, plCfg := range cfg.PluginConfig {
|
|
if plCfg.Name == queueSort {
|
|
queueSortArgs = plCfg.Args
|
|
break
|
|
}
|
|
}
|
|
if len(v.queueSort) == 0 {
|
|
v.queueSort = queueSort
|
|
v.queueSortArgs = queueSortArgs
|
|
return nil
|
|
}
|
|
if v.queueSort != queueSort {
|
|
return fmt.Errorf("different queue sort plugins for profile %q: %q, first: %q", cfg.SchedulerName, queueSort, v.queueSort)
|
|
}
|
|
if !cmp.Equal(v.queueSortArgs, queueSortArgs) {
|
|
return fmt.Errorf("different queue sort plugin args for profile %q", cfg.SchedulerName)
|
|
}
|
|
return nil
|
|
}
|