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client.go
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client.go
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// ------------------------------------------------------------
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
// ------------------------------------------------------------
package kubernetes
import (
"flag"
"os"
"path/filepath"
k8s "k8s.io/client-go/kubernetes"
_ "k8s.io/client-go/plugin/pkg/client/auth"
"k8s.io/client-go/tools/clientcmd"
)
// Client returns a new Kubernetes client.
func Client() (*k8s.Clientset, error) {
var kubeconfig *string
if home := homeDir(); home != "" {
kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
} else {
kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
}
flag.Parse()
if kubeConfigEnv := os.Getenv("KUBECONFIG"); len(kubeConfigEnv) != 0 {
kubeconfig = &kubeConfigEnv
}
config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
if err != nil {
return nil, err
}
return k8s.NewForConfig(config)
}
func homeDir() string {
if h := os.Getenv("HOME"); h != "" {
return h
}
return os.Getenv("USERPROFILE") // windows
}