/
node.go
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/
node.go
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/*
Copyright 2017 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 node
import (
"fmt"
"strconv"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/uuid"
"github.com/kube-node/nodeset/pkg/nodeset/v1alpha1"
)
func (c *Controller) nodesetNodes(nodeset *v1alpha1.NodeSet) ([]*corev1.Node, error) {
objs, err := c.nodeIndexer.ByIndex(OwnerUIDIndex, string(nodeset.GetUID()))
if err != nil {
return nil, fmt.Errorf("failed to get nodes: %v", err)
}
nodes := make([]*corev1.Node, 0, len(objs))
for _, n := range objs {
nodes = append(nodes, n.(*corev1.Node))
}
return nodes, nil
}
func (c *Controller) createNode(nodeset *v1alpha1.NodeSet) (*corev1.Node, error) {
nodeClass, err := c.nodeClassLister.Get(nodeset.Spec.NodeClass)
if err != nil {
return nil, fmt.Errorf("failed to get nodeclass: %v", err)
}
nodeName := nodeset.Name + "-" + string(uuid.NewUUID())[:6]
labels := map[string]string{}
for k, v := range nodeClass.NodeLabels {
labels[k] = v
}
labels[v1alpha1.NodeSetNameLabelKey] = nodeset.Name
labels[v1alpha1.ControllerLabelKey] = nodeClass.NodeController
labels[kubeHostnameLabelKey] = nodeName
mergedNodeClass, err := mergeNodeClass(nodeClass, nodeset.Spec.Config)
if err != nil {
return nil, fmt.Errorf("failed to merge nodeclass: %v", err)
}
content, _, err := convertNodeClassToString(mergedNodeClass)
if err != nil {
return nil, fmt.Errorf("failed to convert merged nodeclass to string: %v", err)
}
gv := v1alpha1.SchemeGroupVersion
node := &corev1.Node{
ObjectMeta: metav1.ObjectMeta{
Name: nodeName,
Labels: labels,
Annotations: map[string]string{
v1alpha1.NodeClassContentAnnotationKey: content,
v1alpha1.NodeSetGenerationAnnotationKey: strconv.Itoa(int(nodeset.Status.ObservedGeneration)),
},
OwnerReferences: []metav1.OwnerReference{*metav1.NewControllerRef(nodeset, gv.WithKind("NodeSet"))},
},
}
return node, nil
}