diff --git a/metropolis/build/kube-code-generator/tools.go b/metropolis/build/kube-code-generator/tools.go
new file mode 100644
index 0000000..d688f57
--- /dev/null
+++ b/metropolis/build/kube-code-generator/tools.go
@@ -0,0 +1,11 @@
+//go:build tools
+// +build tools
+
+package kube_code_generator
+
+import (
+	_ "k8s.io/code-generator/cmd/client-gen"
+	_ "k8s.io/code-generator/cmd/deepcopy-gen"
+	_ "k8s.io/code-generator/cmd/informer-gen"
+	_ "k8s.io/code-generator/cmd/lister-gen"
+)