mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2025-03-16 21:38:23 +00:00
88 lines
2.2 KiB
Go
88 lines
2.2 KiB
Go
/*
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Copyright 2019 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 apihelper
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import (
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"encoding/json"
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api "k8s.io/api/core/v1"
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meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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k8sclient "k8s.io/client-go/kubernetes"
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restclient "k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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)
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// Implements APIHelpers
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type K8sHelpers struct {
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Kubeconfig string
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}
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func (h K8sHelpers) GetClient() (*k8sclient.Clientset, error) {
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// Set up an in-cluster K8S client.
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var config *restclient.Config
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var err error
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if h.Kubeconfig == "" {
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config, err = restclient.InClusterConfig()
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} else {
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config, err = clientcmd.BuildConfigFromFlags("", h.Kubeconfig)
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}
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if err != nil {
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return nil, err
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}
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clientset, err := k8sclient.NewForConfig(config)
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if err != nil {
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return nil, err
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}
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return clientset, nil
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}
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func (h K8sHelpers) GetNode(cli *k8sclient.Clientset, nodeName string) (*api.Node, error) {
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// Get the node object using node name
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node, err := cli.CoreV1().Nodes().Get(nodeName, meta_v1.GetOptions{})
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if err != nil {
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return nil, err
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}
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return node, nil
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}
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func (h K8sHelpers) GetNodes(cli *k8sclient.Clientset) (*api.NodeList, error) {
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return cli.CoreV1().Nodes().List(meta_v1.ListOptions{})
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}
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func (h K8sHelpers) UpdateNode(c *k8sclient.Clientset, n *api.Node) error {
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// Send the updated node to the apiserver.
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_, err := c.CoreV1().Nodes().Update(n)
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if err != nil {
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return err
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}
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return nil
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}
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func (h K8sHelpers) PatchStatus(c *k8sclient.Clientset, nodeName string, marshalable interface{}) error {
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// Send the updated node to the apiserver.
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patch, err := json.Marshal(marshalable)
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if err == nil {
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_, err = c.CoreV1().Nodes().Patch(nodeName, types.JSONPatchType, patch, "status")
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}
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return err
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}
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