vendor: initial vendor

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>

vendor/github.com/docker/compose-on-kubernetes/api/config.go

@@ -0,0 +1,26 @@
+package apis
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/docker/docker/pkg/homedir"
+	"k8s.io/client-go/tools/clientcmd"
+)
+
+// NewKubernetesConfig resolves the path to the desired Kubernetes configuration file based on
+// the KUBECONFIG environment variable and command line flags.
+func NewKubernetesConfig(configPath string) clientcmd.ClientConfig {
+	kubeConfig := configPath
+	if kubeConfig == "" {
+		if config := os.Getenv("KUBECONFIG"); config != "" {
+			kubeConfig = config
+		} else {
+			kubeConfig = filepath.Join(homedir.Get(), ".kube/config")
+		}
+	}
+
+	return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(
+		&clientcmd.ClientConfigLoadingRules{ExplicitPath: kubeConfig},
+		&clientcmd.ConfigOverrides{})
+}