nebula ca controller
diff --git a/core/nebula/hack/tools.go b/core/nebula/hack/tools.go
new file mode 100644
index 0000000..57051d8
--- /dev/null
+++ b/core/nebula/hack/tools.go
@@ -0,0 +1,3 @@
+package hack
+
+import _ "k8s.io/code-generator"