DockerCLI/kubernetes/config.go

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package kubernetes
import (
"os"
"path/filepath"
"github.com/docker/docker/pkg/homedir"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
)
// NewKubernetesConfig resolves the path to the desired Kubernetes configuration file, depending
// environment variable and command line flag.
func NewKubernetesConfig(configFlag string) (*restclient.Config, error) {
kubeConfig := configFlag
if kubeConfig == "" {
if config := os.Getenv("KUBECONFIG"); config != "" {
kubeConfig = config
} else {
kubeConfig = filepath.Join(homedir.Get(), ".kube/config")
}
}
return clientcmd.BuildConfigFromFlags("", kubeConfig)
}