/
manager.go
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/
manager.go
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// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
// http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file 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 (
"context"
"github.com/aws/amazon-vpc-resource-controller-k8s/test/framework/utils"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
)
type Manager interface {
GetNodesWithOS(os string) (*v1.NodeList, error)
AddLabels(nodeList []v1.Node, label map[string]string) error
RemoveLabels(nodeList []v1.Node, label map[string]string) error
GetNode(node *v1.Node) (*v1.Node, error)
}
type defaultManager struct {
k8sClient client.Client
}
func NewManager(k8sClient client.Client) Manager {
return &defaultManager{k8sClient: k8sClient}
}
func (d *defaultManager) GetNodesWithOS(os string) (*v1.NodeList, error) {
nodeList := &v1.NodeList{}
err := d.k8sClient.List(context.TODO(), nodeList, &client.ListOptions{
LabelSelector: labels.SelectorFromSet(map[string]string{"kubernetes.io/os": os}),
})
return nodeList, err
}
func (d *defaultManager) AddLabels(nodeList []v1.Node, label map[string]string) error {
for _, node := range nodeList {
latestNode := &v1.Node{}
// Get the latest node object reference from cache
err := d.k8sClient.Get(context.TODO(), types.NamespacedName{
Name: node.Name,
}, latestNode)
if err != nil {
return err
}
patchedNode := latestNode.DeepCopy()
for labelKey, labelVal := range label {
patchedNode.Labels[labelKey] = labelVal
}
err = d.k8sClient.Patch(context.TODO(), patchedNode, client.MergeFrom(latestNode))
if err != nil {
return err
}
}
return nil
}
func (d *defaultManager) RemoveLabels(nodeList []v1.Node, label map[string]string) error {
for _, node := range nodeList {
latestNode := &v1.Node{}
// Get the latest node object reference from cache
err := d.k8sClient.Get(context.TODO(), types.NamespacedName{
Name: node.Name,
}, latestNode)
if err != nil {
return err
}
patchedNode := latestNode.DeepCopy()
for labelKey, _ := range label {
delete(patchedNode.Labels, labelKey)
}
err = d.k8sClient.Patch(context.TODO(), patchedNode, client.MergeFrom(latestNode))
if err != nil {
return err
}
}
return nil
}
func (d *defaultManager) GetNode(node *v1.Node) (*v1.Node, error) {
observedNode := &v1.Node{}
err := d.k8sClient.Get(context.TODO(), utils.NamespacedName(node), observedNode)
return observedNode, err
}