create-k8s-client-in-or-out-ofcluster.go

gistfile1.txt

func CreateKubernetesClient() (*kubernetes.Clientset, error) {
	// Try in-cluster config
	config, err := rest.InClusterConfig()
	if err != nil {
		// If there's an error, it means we're not in-cluster, try out-of-cluster config
		kubeconfig := os.Getenv("KUBECONFIG") // Path to a kubeconfig. Only required if out-of-cluster
		if kubeconfig == "" {
			kubeconfig = os.Getenv("HOME") + "/.kube/config"
		}

		config, err = clientcmd.BuildConfigFromFlags("", kubeconfig)
		if err != nil {
			return nil, fmt.Errorf("failed to create out-of-cluster config: %v", err)
		}
	}

	return kubernetes.NewForConfig(config)
}