a57ac0725a
This PR only implements the mapping, but does not use it. A followup PR will use this mapping to produce a framework configuration that redirects mapped predicates/priorites to be exected as plugins.
81 lines
3.0 KiB
Go
81 lines
3.0 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package plugins
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import (
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"fmt"
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"k8s.io/kubernetes/pkg/scheduler/apis/config"
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noop "k8s.io/kubernetes/pkg/scheduler/framework/plugins/noop"
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framework "k8s.io/kubernetes/pkg/scheduler/framework/v1alpha1"
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)
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// NewDefaultRegistry builds a default registry with all the default plugins.
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// This is the registry that Kubernetes default scheduler uses. A scheduler that
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// runs custom plugins, can pass a different Registry when initializing the scheduler.
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func NewDefaultRegistry() framework.Registry {
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return framework.Registry{
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// This is just a test plugin to showcase the setup, it should be deleted once
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// we have at least one legitimate plugin here.
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noop.Name: noop.New,
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}
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}
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// ConfigProducerArgs contains arguments that are passed to the producer.
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// As we add more predicates/priorities to framework plugins mappings, more arguments
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// may be added here.
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type ConfigProducerArgs struct {
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// Weight used for priority functions.
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Weight int32
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}
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// ConfigProducer produces a framework's configuration.
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type ConfigProducer func(args ConfigProducerArgs) (config.Plugins, []config.PluginConfig)
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// ConfigProducerRegistry tracks mappings from predicates/priorities to framework config producers.
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type ConfigProducerRegistry struct {
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// maps that associate predicates/priorities with framework plugin configurations.
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PredicateToConfigProducer map[string]ConfigProducer
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PriorityToConfigProducer map[string]ConfigProducer
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}
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// NewConfigProducerRegistry creates a new producer registry.
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func NewConfigProducerRegistry() *ConfigProducerRegistry {
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return &ConfigProducerRegistry{
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PredicateToConfigProducer: make(map[string]ConfigProducer),
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PriorityToConfigProducer: make(map[string]ConfigProducer),
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}
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}
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func registerProducer(name string, producer ConfigProducer, producersMap map[string]ConfigProducer) error {
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if _, exist := producersMap[name]; exist {
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return fmt.Errorf("already registered %q", name)
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}
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producersMap[name] = producer
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return nil
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}
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// RegisterPredicate registers a config producer for a predicate.
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func (f *ConfigProducerRegistry) RegisterPredicate(name string, producer ConfigProducer) error {
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return registerProducer(name, producer, f.PredicateToConfigProducer)
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}
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// RegisterPriority registers a framework config producer for a priority.
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func (f *ConfigProducerRegistry) RegisterPriority(name string, producer ConfigProducer) error {
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return registerProducer(name, producer, f.PriorityToConfigProducer)
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}
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