copy apply and diff commands from kubectl

cmd/kubectl/main.go

@@ -0,0 +1,19 @@
+// Copyright 2019 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package main
+
+import (
+	"os"
+
+	"sigs.k8s.io/kustomize/cmd/kubectl/kubectlcobra"
+	"sigs.k8s.io/kustomize/kyaml/commandutil"
+)
+
+func main() {
+	// enable the config commands
+	os.Setenv(commandutil.EnableAlphaCommmandsEnvName, "true")
+	if err := kubectlcobra.GetCommand(nil).Execute(); err != nil {
+		os.Exit(1)
+	}
+}