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63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
/*
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Copyright 2020 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 defaultbinder
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import (
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"context"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/klog/v2"
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"k8s.io/kubernetes/pkg/scheduler/framework"
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"k8s.io/kubernetes/pkg/scheduler/framework/plugins/names"
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)
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// Name of the plugin used in the plugin registry and configurations.
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const Name = names.DefaultBinder
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// DefaultBinder binds pods to nodes using a k8s client.
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type DefaultBinder struct {
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handle framework.Handle
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}
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var _ framework.BindPlugin = &DefaultBinder{}
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// New creates a DefaultBinder.
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func New(_ runtime.Object, handle framework.Handle) (framework.Plugin, error) {
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return &DefaultBinder{handle: handle}, nil
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}
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// Name returns the name of the plugin.
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func (b DefaultBinder) Name() string {
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return Name
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}
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// Bind binds pods to nodes using the k8s client.
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func (b DefaultBinder) Bind(ctx context.Context, state *framework.CycleState, p *v1.Pod, nodeName string) *framework.Status {
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klog.V(3).InfoS("Attempting to bind pod to node", "pod", klog.KObj(p), "node", klog.KRef("", nodeName))
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binding := &v1.Binding{
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ObjectMeta: metav1.ObjectMeta{Namespace: p.Namespace, Name: p.Name, UID: p.UID},
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Target: v1.ObjectReference{Kind: "Node", Name: nodeName},
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}
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err := b.handle.ClientSet().CoreV1().Pods(binding.Namespace).Bind(ctx, binding, metav1.CreateOptions{})
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if err != nil {
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return framework.AsStatus(err)
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}
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return nil
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}
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