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https://github.com/kubernetes-sigs/descheduler.git
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1974c12e0f
The new context.Context can be later used for passing a contextualized logger. Or, other initialization steps that require the context.
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
/*
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Copyright 2023 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 pluginregistry
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import (
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"context"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/klog/v2"
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frameworktypes "sigs.k8s.io/descheduler/pkg/framework/types"
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)
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var PluginRegistry Registry
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type PluginUtilities struct {
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PluginBuilder PluginBuilder
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PluginType interface{}
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// Just an example instance of this PluginArg so we can avoid having
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// to deal with reflect Types
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PluginArgInstance runtime.Object
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PluginArgValidator PluginArgValidator
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PluginArgDefaulter PluginArgDefaulter
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}
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type PluginBuilder = func(ctx context.Context, args runtime.Object, handle frameworktypes.Handle) (frameworktypes.Plugin, error)
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type (
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PluginArgValidator = func(args runtime.Object) error
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PluginArgDefaulter = func(args runtime.Object)
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)
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type Registry map[string]PluginUtilities
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func NewRegistry() Registry {
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return Registry{}
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}
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func Register(
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name string,
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builderFunc PluginBuilder,
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pluginType interface{},
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exampleArg runtime.Object,
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pluginArgValidator PluginArgValidator,
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pluginArgDefaulter PluginArgDefaulter,
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registry Registry,
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) {
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if _, ok := registry[name]; ok {
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klog.V(10).InfoS("Plugin already registered", "plugin", name)
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} else {
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registry[name] = PluginUtilities{
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PluginBuilder: builderFunc,
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PluginType: pluginType,
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PluginArgInstance: exampleArg,
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PluginArgValidator: pluginArgValidator,
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PluginArgDefaulter: pluginArgDefaulter,
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}
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}
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}
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