feat: kubectl exposed via werf kubectl

Signed-off-by: Ilya Lesikov <ilya@lesikov.com>

cmd/werf/kubectl/kubectl.go

@@ -0,0 +1,11 @@
+package kubectl
+
+import (
+	"github.com/spf13/cobra"
+	"k8s.io/kubectl/pkg/cmd"
+)
+
+func NewCmd() *cobra.Command {
+	kubectlRootCmd := cmd.NewDefaultKubectlCommand()
+	return kubectlRootCmd
+}

cmd/werf/main.go

@@ -34,6 +34,7 @@ import (
 	"github.com/werf/werf/cmd/werf/helm"
 	host_cleanup "github.com/werf/werf/cmd/werf/host/cleanup"
 	host_purge "github.com/werf/werf/cmd/werf/host/purge"
+	"github.com/werf/werf/cmd/werf/kubectl"
 	managed_images_add "github.com/werf/werf/cmd/werf/managed_images/add"
 	managed_images_ls "github.com/werf/werf/cmd/werf/managed_images/ls"
 	managed_images_rm "github.com/werf/werf/cmd/werf/managed_images/rm"
@@ -123,6 +124,7 @@ Find more information at https://werf.io`),
 				hostCmd(),
 				helm.NewCmd(),
 				crCmd(),
+				kubectl.NewCmd(),
 			},
 		},
 		{