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https://github.com/optim-enterprises-bv/kubernetes.git
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56 lines
1.9 KiB
Go
56 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 util
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import (
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"context"
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coordinationv1 "k8s.io/api/coordination/v1"
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corev1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/klog/v2"
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)
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// SetNodeOwnerFunc helps construct a newLeasePostProcessFunc which sets
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// a node OwnerReference to the given lease object
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func SetNodeOwnerFunc(c clientset.Interface, nodeName string) func(lease *coordinationv1.Lease) error {
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return func(lease *coordinationv1.Lease) error {
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// Setting owner reference needs node's UID. Note that it is different from
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// kubelet.nodeRef.UID. When lease is initially created, it is possible that
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// the connection between master and node is not ready yet. So try to set
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// owner reference every time when renewing the lease, until successful.
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if len(lease.OwnerReferences) == 0 {
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if node, err := c.CoreV1().Nodes().Get(context.TODO(), nodeName, metav1.GetOptions{}); err == nil {
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lease.OwnerReferences = []metav1.OwnerReference{
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{
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APIVersion: corev1.SchemeGroupVersion.WithKind("Node").Version,
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Kind: corev1.SchemeGroupVersion.WithKind("Node").Kind,
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Name: nodeName,
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UID: node.UID,
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},
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}
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} else {
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klog.ErrorS(err, "Failed to get node when trying to set owner ref to the node lease", "node", klog.KRef("", nodeName))
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return err
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}
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}
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return nil
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}
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}
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