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clientset.go
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clientset.go
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package kube
import (
"os"
"path/filepath"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"kubegems.io/kubegems/pkg/log"
)
func GetKubeClient(kubeconfig []byte) (*rest.Config, *kubernetes.Clientset, error) {
restconfig, err := clientcmd.RESTConfigFromKubeConfig(kubeconfig)
if err != nil {
return nil, nil, err
}
clientset, err := kubernetes.NewForConfig(restconfig)
if err != nil {
return restconfig, nil, err
}
return restconfig, clientset, nil
}
func GetKubeconfigInfos(kubeconfig []byte) (apiserver string, cert, key, ca []byte, err error) {
cfg, err := clientcmd.RESTConfigFromKubeConfig(kubeconfig)
if err != nil {
log.Errorf("unable decode kubeconfig:%v", err)
return "", nil, nil, nil, err
}
return cfg.Host, cfg.TLSClientConfig.CertData, cfg.TLSClientConfig.KeyData, cfg.TLSClientConfig.CAData, nil
}
func GetKubeRestConfig(kubeconfig []byte) (*rest.Config, error) {
return clientcmd.RESTConfigFromKubeConfig(kubeconfig)
}
// AutoClientConfig 自动获取当前环境 restConfig
// 1. 先尝试使用InClusterConfig,
// 2. 若不存在则使用 ~/.kube/config,
// 3. 否不存在则失败
func AutoClientConfig() (*rest.Config, error) {
if config, err := rest.InClusterConfig(); err != nil {
home, _ := os.UserHomeDir()
return clientcmd.BuildConfigFromFlags("", filepath.Join(home, ".kube", "config"))
} else {
return config, nil
}
}