From 7b632b2dd5db39aaf7b1fc15461ceea127cbf511 Mon Sep 17 00:00:00 2001
From: Justin SB <justinsb@google.com>
Date: Mon, 11 Nov 2019 17:36:53 -0500
Subject: [PATCH] Mark other templates as const also

To prevent the previous problem from being introduced elsewhere.
---
 pkg/scaffold/project/authproxyrole.go                     | 2 +-
 pkg/scaffold/project/authproxyrolebinding.go              | 2 +-
 pkg/scaffold/project/boilerplate.go                       | 4 ++--
 pkg/scaffold/project/gitignore.go                         | 2 +-
 pkg/scaffold/project/gopkg.go                             | 2 +-
 pkg/scaffold/project/kustomize.go                         | 2 +-
 pkg/scaffold/project/kustomize_manager_base.go            | 2 +-
 pkg/scaffold/project/kustomize_rbac_base.go               | 2 +-
 pkg/scaffold/project/makefile.go                          | 2 +-
 pkg/scaffold/v1/authproxyservice.go                       | 2 +-
 pkg/scaffold/v1/controller/add.go                         | 2 +-
 pkg/scaffold/v1/controller/controller.go                  | 2 +-
 pkg/scaffold/v1/controller/controllersuitetest.go         | 2 +-
 pkg/scaffold/v1/controller/controllertest.go              | 2 +-
 pkg/scaffold/v1/crd/addtoscheme.go                        | 2 +-
 pkg/scaffold/v1/crd/crd_sample.go                         | 2 +-
 pkg/scaffold/v1/crd/doc.go                                | 2 +-
 pkg/scaffold/v1/crd/group.go                              | 2 +-
 pkg/scaffold/v1/crd/register.go                           | 2 +-
 pkg/scaffold/v1/crd/types.go                              | 2 +-
 pkg/scaffold/v1/crd/typestest.go                          | 2 +-
 pkg/scaffold/v1/crd/version_suitetest.go                  | 2 +-
 pkg/scaffold/v1/kustomize_image_patch.go                  | 2 +-
 pkg/scaffold/v1/manager/apis.go                           | 2 +-
 pkg/scaffold/v1/manager/cmd.go                            | 2 +-
 pkg/scaffold/v1/manager/config.go                         | 2 +-
 pkg/scaffold/v1/manager/controller.go                     | 2 +-
 pkg/scaffold/v1/manager/dockerfile.go                     | 2 +-
 pkg/scaffold/v1/manager/webhook.go                        | 2 +-
 pkg/scaffold/v1/metricsauth/kustomize_auth_proxy_patch.go | 2 +-
 pkg/scaffold/v1/metricsauth/kustomize_metrics_patch.go    | 2 +-
 pkg/scaffold/v1/webhook/add_admissionbuilder_handler.go   | 2 +-
 pkg/scaffold/v1/webhook/add_server.go                     | 2 +-
 pkg/scaffold/v1/webhook/admissionbuilder.go               | 2 +-
 pkg/scaffold/v1/webhook/admissionhandler.go               | 2 +-
 pkg/scaffold/v1/webhook/admissionwebhooks.go              | 2 +-
 pkg/scaffold/v1/webhook/server.go                         | 2 +-
 pkg/scaffold/v2/authproxyservice.go                       | 2 +-
 pkg/scaffold/v2/certmanager/certificate.go                | 2 +-
 pkg/scaffold/v2/certmanager/kustomize.go                  | 2 +-
 pkg/scaffold/v2/certmanager/kustomizeconfig.go            | 2 +-
 pkg/scaffold/v2/controller.go                             | 2 +-
 pkg/scaffold/v2/controller_suitetest.go                   | 2 +-
 pkg/scaffold/v2/crd/enablecainjection_patch.go            | 2 +-
 pkg/scaffold/v2/crd/enablewebhook_patch.go                | 2 +-
 pkg/scaffold/v2/crd/kustomizeconfig.go                    | 2 +-
 pkg/scaffold/v2/crd_sample.go                             | 2 +-
 pkg/scaffold/v2/dockerfile.go                             | 2 +-
 pkg/scaffold/v2/gomod.go                                  | 2 +-
 pkg/scaffold/v2/group.go                                  | 2 +-
 pkg/scaffold/v2/kustomize.go                              | 2 +-
 pkg/scaffold/v2/leaderelectionrole.go                     | 2 +-
 pkg/scaffold/v2/leaderelectionrolebinding.go              | 2 +-
 pkg/scaffold/v2/makefile.go                               | 2 +-
 pkg/scaffold/v2/manager/config.go                         | 2 +-
 pkg/scaffold/v2/manager/kustomization.go                  | 2 +-
 pkg/scaffold/v2/metricsauth/kustomize_auth_proxy_patch.go | 2 +-
 pkg/scaffold/v2/mgrrolebinding.go                         | 3 +--
 pkg/scaffold/v2/prometheus/kustomize.go                   | 3 +--
 pkg/scaffold/v2/prometheus/monitor.go                     | 2 +-
 pkg/scaffold/v2/rbac.go                                   | 2 +-
 pkg/scaffold/v2/types.go                                  | 2 +-
 pkg/scaffold/v2/webhook/enablecainection_patch.go         | 2 +-
 pkg/scaffold/v2/webhook/kustomization.go                  | 2 +-
 pkg/scaffold/v2/webhook/kustomizeconfig.go                | 2 +-
 pkg/scaffold/v2/webhook/service.go                        | 2 +-
 pkg/scaffold/v2/webhook_manager_patch.go                  | 2 +-
 plugins/addon/controller.go                               | 2 +-
 plugins/addon/type.go                                     | 2 +-
 69 files changed, 70 insertions(+), 72 deletions(-)

diff --git a/pkg/scaffold/project/authproxyrole.go b/pkg/scaffold/project/authproxyrole.go
index a360b4e1a4d..2cd0593899b 100644
--- a/pkg/scaffold/project/authproxyrole.go
+++ b/pkg/scaffold/project/authproxyrole.go
@@ -38,7 +38,7 @@ func (r *AuthProxyRole) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var proxyRoleTemplate = `apiVersion: rbac.authorization.k8s.io/v1
+const proxyRoleTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
   name: proxy-role
diff --git a/pkg/scaffold/project/authproxyrolebinding.go b/pkg/scaffold/project/authproxyrolebinding.go
index 7a5f7fd3f45..d62433df2b7 100644
--- a/pkg/scaffold/project/authproxyrolebinding.go
+++ b/pkg/scaffold/project/authproxyrolebinding.go
@@ -38,7 +38,7 @@ func (r *AuthProxyRoleBinding) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var proxyRoleBindinggTemplate = `apiVersion: rbac.authorization.k8s.io/v1
+const proxyRoleBindinggTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: proxy-rolebinding
diff --git a/pkg/scaffold/project/boilerplate.go b/pkg/scaffold/project/boilerplate.go
index 0b75414f31b..e4205ebd1cb 100644
--- a/pkg/scaffold/project/boilerplate.go
+++ b/pkg/scaffold/project/boilerplate.go
@@ -65,7 +65,7 @@ func (c *Boilerplate) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var apache = `/*
+const apache = `/*
 {{ if .Owner }}Copyright {{ .Year }} {{ .Owner }}.
 {{ end }}
 Licensed under the Apache License, Version 2.0 (the "License");
@@ -81,6 +81,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */`
 
-var none = `/*
+const none = `/*
 {{ if .Owner }}Copyright {{ .Year }} {{ .Owner }}{{ end }}.
 */`
diff --git a/pkg/scaffold/project/gitignore.go b/pkg/scaffold/project/gitignore.go
index f75885432d1..ac9d8555e30 100644
--- a/pkg/scaffold/project/gitignore.go
+++ b/pkg/scaffold/project/gitignore.go
@@ -36,7 +36,7 @@ func (c *GitIgnore) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var gitignoreTemplate = `
+const gitignoreTemplate = `
 # Binaries for programs and plugins
 *.exe
 *.exe~
diff --git a/pkg/scaffold/project/gopkg.go b/pkg/scaffold/project/gopkg.go
index 4b554d5a68a..6ec1a649a2a 100644
--- a/pkg/scaffold/project/gopkg.go
+++ b/pkg/scaffold/project/gopkg.go
@@ -134,7 +134,7 @@ const DefaultGopkgUserContent = `required = [
 
 `
 
-var depTemplate = `{{ .UserContent }}
+const depTemplate = `{{ .UserContent }}
 # STANZAS BELOW ARE GENERATED AND MAY BE WRITTEN - DO NOT MODIFY BELOW THIS LINE.
 
 {{ range $element := .Stanzas -}}
diff --git a/pkg/scaffold/project/kustomize.go b/pkg/scaffold/project/kustomize.go
index 7a4b285ea13..f0d78f447ef 100644
--- a/pkg/scaffold/project/kustomize.go
+++ b/pkg/scaffold/project/kustomize.go
@@ -51,7 +51,7 @@ func (c *Kustomize) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeTemplate = `# Adds namespace to all resources.
+const kustomizeTemplate = `# Adds namespace to all resources.
 namespace: {{.Prefix}}-system
 
 # Value of this field is prepended to the
diff --git a/pkg/scaffold/project/kustomize_manager_base.go b/pkg/scaffold/project/kustomize_manager_base.go
index 9326b272130..aef819bed9f 100644
--- a/pkg/scaffold/project/kustomize_manager_base.go
+++ b/pkg/scaffold/project/kustomize_manager_base.go
@@ -39,6 +39,6 @@ func (c *KustomizeManager) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeManagerTemplate = `resources:
+const kustomizeManagerTemplate = `resources:
 - manager.yaml
 `
diff --git a/pkg/scaffold/project/kustomize_rbac_base.go b/pkg/scaffold/project/kustomize_rbac_base.go
index 373ff36373c..0e532ad475d 100644
--- a/pkg/scaffold/project/kustomize_rbac_base.go
+++ b/pkg/scaffold/project/kustomize_rbac_base.go
@@ -39,7 +39,7 @@ func (c *KustomizeRBAC) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeRBACTemplate = `resources:
+const kustomizeRBACTemplate = `resources:
 - rbac_role.yaml
 - rbac_role_binding.yaml
   # Comment the following 3 lines if you want to disable
diff --git a/pkg/scaffold/project/makefile.go b/pkg/scaffold/project/makefile.go
index e755e7ad6bc..3996a5fdb13 100644
--- a/pkg/scaffold/project/makefile.go
+++ b/pkg/scaffold/project/makefile.go
@@ -48,7 +48,7 @@ func (c *Makefile) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var makefileTemplate = `
+const makefileTemplate = `
 # Image URL to use all building/pushing image targets
 IMG ?= {{ .Image }}
 
diff --git a/pkg/scaffold/v1/authproxyservice.go b/pkg/scaffold/v1/authproxyservice.go
index 9328fc95de2..63debdf3fca 100644
--- a/pkg/scaffold/v1/authproxyservice.go
+++ b/pkg/scaffold/v1/authproxyservice.go
@@ -38,7 +38,7 @@ func (r *AuthProxyService) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var AuthProxyServiceTemplate = `apiVersion: v1
+const AuthProxyServiceTemplate = `apiVersion: v1
 kind: Service
 metadata:
   annotations:
diff --git a/pkg/scaffold/v1/controller/add.go b/pkg/scaffold/v1/controller/add.go
index a1716c27153..38b8d50574f 100644
--- a/pkg/scaffold/v1/controller/add.go
+++ b/pkg/scaffold/v1/controller/add.go
@@ -45,7 +45,7 @@ func (a *AddController) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var addControllerTemplate = `{{ .Boilerplate }}
+const addControllerTemplate = `{{ .Boilerplate }}
 
 package controller
 
diff --git a/pkg/scaffold/v1/controller/controller.go b/pkg/scaffold/v1/controller/controller.go
index 9a6c3215a13..f993e7b0a39 100644
--- a/pkg/scaffold/v1/controller/controller.go
+++ b/pkg/scaffold/v1/controller/controller.go
@@ -97,7 +97,7 @@ func getResourceInfo(coreGroups map[string]string, r *resource.Resource, in inpu
 	return path.Join(in.Repo, "pkg", "apis"), r.Group + "." + in.Domain
 }
 
-var controllerTemplate = `{{ .Boilerplate }}
+const controllerTemplate = `{{ .Boilerplate }}
 
 package {{ lower .Resource.Kind }}
 
diff --git a/pkg/scaffold/v1/controller/controllersuitetest.go b/pkg/scaffold/v1/controller/controllersuitetest.go
index 37001ca2da2..9ba6b285ece 100644
--- a/pkg/scaffold/v1/controller/controllersuitetest.go
+++ b/pkg/scaffold/v1/controller/controllersuitetest.go
@@ -42,7 +42,7 @@ func (a *SuiteTest) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var controllerSuiteTestTemplate = `{{ .Boilerplate }}
+const controllerSuiteTestTemplate = `{{ .Boilerplate }}
 
 package {{ lower .Resource.Kind }}
 
diff --git a/pkg/scaffold/v1/controller/controllertest.go b/pkg/scaffold/v1/controller/controllertest.go
index cc6a0ea1703..773b613fb59 100644
--- a/pkg/scaffold/v1/controller/controllertest.go
+++ b/pkg/scaffold/v1/controller/controllertest.go
@@ -66,7 +66,7 @@ func (a *Test) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var controllerTestTemplate = `{{ .Boilerplate }}
+const controllerTestTemplate = `{{ .Boilerplate }}
 
 package {{ lower .Resource.Kind }}
 
diff --git a/pkg/scaffold/v1/crd/addtoscheme.go b/pkg/scaffold/v1/crd/addtoscheme.go
index 5c224dce3e2..bdcdd02d636 100644
--- a/pkg/scaffold/v1/crd/addtoscheme.go
+++ b/pkg/scaffold/v1/crd/addtoscheme.go
@@ -52,7 +52,7 @@ func (a *AddToScheme) Validate() error {
 // NB(directxman12): we need that package alias on the API import otherwise imports.Process
 // gets wicked (or hella, if you're feeling west-coasty) confused.
 
-var addResourceTemplate = `{{ .Boilerplate }}
+const addResourceTemplate = `{{ .Boilerplate }}
 
 package apis
 
diff --git a/pkg/scaffold/v1/crd/crd_sample.go b/pkg/scaffold/v1/crd/crd_sample.go
index 9d877358399..850a22b12e2 100644
--- a/pkg/scaffold/v1/crd/crd_sample.go
+++ b/pkg/scaffold/v1/crd/crd_sample.go
@@ -52,7 +52,7 @@ func (c *CRDSample) Validate() error {
 	return c.Resource.Validate()
 }
 
-var crdSampleTemplate = `apiVersion: {{ .Resource.Group }}.{{ .Domain }}/{{ .Resource.Version }}
+const crdSampleTemplate = `apiVersion: {{ .Resource.Group }}.{{ .Domain }}/{{ .Resource.Version }}
 kind: {{ .Resource.Kind }}
 metadata:
   labels:
diff --git a/pkg/scaffold/v1/crd/doc.go b/pkg/scaffold/v1/crd/doc.go
index 6bf66442439..6989e827f75 100644
--- a/pkg/scaffold/v1/crd/doc.go
+++ b/pkg/scaffold/v1/crd/doc.go
@@ -50,7 +50,7 @@ func (a *Doc) Validate() error {
 	return a.Resource.Validate()
 }
 
-var docGoTemplate = `{{ .Boilerplate }}
+const docGoTemplate = `{{ .Boilerplate }}
 
 // Package {{.Resource.Version}} contains API Schema definitions for the {{ .Resource.GroupImportSafe }} {{.Resource.Version}} API group
 // +k8s:openapi-gen=true
diff --git a/pkg/scaffold/v1/crd/group.go b/pkg/scaffold/v1/crd/group.go
index 160576adbf7..ebc4513e0dd 100644
--- a/pkg/scaffold/v1/crd/group.go
+++ b/pkg/scaffold/v1/crd/group.go
@@ -47,7 +47,7 @@ func (g *Group) Validate() error {
 	return g.Resource.Validate()
 }
 
-var groupTemplate = `{{ .Boilerplate }}
+const groupTemplate = `{{ .Boilerplate }}
 
 // Package {{ .Resource.GroupImportSafe }} contains {{ .Resource.Group }} API versions
 package {{ .Resource.GroupImportSafe }}
diff --git a/pkg/scaffold/v1/crd/register.go b/pkg/scaffold/v1/crd/register.go
index 1c1f3e2115b..97e6332a458 100644
--- a/pkg/scaffold/v1/crd/register.go
+++ b/pkg/scaffold/v1/crd/register.go
@@ -47,7 +47,7 @@ func (r *Register) Validate() error {
 	return r.Resource.Validate()
 }
 
-var registerTemplate = `{{ .Boilerplate }}
+const registerTemplate = `{{ .Boilerplate }}
 
 // NOTE: Boilerplate only.  Ignore this file.
 
diff --git a/pkg/scaffold/v1/crd/types.go b/pkg/scaffold/v1/crd/types.go
index 0f7cb4ea842..2b3fe6f4269 100644
--- a/pkg/scaffold/v1/crd/types.go
+++ b/pkg/scaffold/v1/crd/types.go
@@ -51,7 +51,7 @@ func (t *Types) Validate() error {
 	return t.Resource.Validate()
 }
 
-var typesTemplate = `{{ .Boilerplate }}
+const typesTemplate = `{{ .Boilerplate }}
 
 package {{ .Resource.Version }}
 
diff --git a/pkg/scaffold/v1/crd/typestest.go b/pkg/scaffold/v1/crd/typestest.go
index 1bd7cab1ff5..de5d6b8f44a 100644
--- a/pkg/scaffold/v1/crd/typestest.go
+++ b/pkg/scaffold/v1/crd/typestest.go
@@ -51,7 +51,7 @@ func (t *TypesTest) Validate() error {
 	return t.Resource.Validate()
 }
 
-var typesTestTemplate = `{{ .Boilerplate }}
+const typesTestTemplate = `{{ .Boilerplate }}
 
 package {{ .Resource.Version }}
 
diff --git a/pkg/scaffold/v1/crd/version_suitetest.go b/pkg/scaffold/v1/crd/version_suitetest.go
index 8ee3bab8cf1..8c30b87de99 100644
--- a/pkg/scaffold/v1/crd/version_suitetest.go
+++ b/pkg/scaffold/v1/crd/version_suitetest.go
@@ -49,7 +49,7 @@ func (v *VersionSuiteTest) Validate() error {
 	return v.Resource.Validate()
 }
 
-var versionSuiteTestTemplate = `{{ .Boilerplate }}
+const versionSuiteTestTemplate = `{{ .Boilerplate }}
 
 package {{ .Resource.Version }}
 
diff --git a/pkg/scaffold/v1/kustomize_image_patch.go b/pkg/scaffold/v1/kustomize_image_patch.go
index be460f0f406..8853ce26806 100644
--- a/pkg/scaffold/v1/kustomize_image_patch.go
+++ b/pkg/scaffold/v1/kustomize_image_patch.go
@@ -46,7 +46,7 @@ func (c *KustomizeImagePatch) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeImagePatchTemplate = `apiVersion: apps/v1
+const kustomizeImagePatchTemplate = `apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: controller-manager
diff --git a/pkg/scaffold/v1/manager/apis.go b/pkg/scaffold/v1/manager/apis.go
index d5cb34547f0..3fa6adad449 100644
--- a/pkg/scaffold/v1/manager/apis.go
+++ b/pkg/scaffold/v1/manager/apis.go
@@ -58,7 +58,7 @@ func (a *APIs) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var apisTemplate = `{{ .Boilerplate }}
+const apisTemplate = `{{ .Boilerplate }}
 
 {{ range $line := .Comments }}{{ $line }}
 {{ end }}
diff --git a/pkg/scaffold/v1/manager/cmd.go b/pkg/scaffold/v1/manager/cmd.go
index 3246e7e8b62..18a363602fd 100644
--- a/pkg/scaffold/v1/manager/cmd.go
+++ b/pkg/scaffold/v1/manager/cmd.go
@@ -38,7 +38,7 @@ func (a *Cmd) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var cmdTemplate = `{{ .Boilerplate }}
+const cmdTemplate = `{{ .Boilerplate }}
 
 package main
 
diff --git a/pkg/scaffold/v1/manager/config.go b/pkg/scaffold/v1/manager/config.go
index 9de6602b8bb..aea2c8d96ef 100644
--- a/pkg/scaffold/v1/manager/config.go
+++ b/pkg/scaffold/v1/manager/config.go
@@ -40,7 +40,7 @@ func (c *Config) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var configTemplate = `apiVersion: v1
+const configTemplate = `apiVersion: v1
 kind: Namespace
 metadata:
   labels:
diff --git a/pkg/scaffold/v1/manager/controller.go b/pkg/scaffold/v1/manager/controller.go
index d7bfe7ef36d..cecb0ab969d 100644
--- a/pkg/scaffold/v1/manager/controller.go
+++ b/pkg/scaffold/v1/manager/controller.go
@@ -38,7 +38,7 @@ func (c *Controller) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var controllerTemplate = `{{ .Boilerplate }}
+const controllerTemplate = `{{ .Boilerplate }}
 
 package controller
 
diff --git a/pkg/scaffold/v1/manager/dockerfile.go b/pkg/scaffold/v1/manager/dockerfile.go
index 7c37fabfc90..c90c60e0d10 100644
--- a/pkg/scaffold/v1/manager/dockerfile.go
+++ b/pkg/scaffold/v1/manager/dockerfile.go
@@ -36,7 +36,7 @@ func (c *Dockerfile) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var dockerfileTemplate = `# Build the manager binary
+const dockerfileTemplate = `# Build the manager binary
 FROM golang:1.10.3 as builder
 
 # Copy in the go src
diff --git a/pkg/scaffold/v1/manager/webhook.go b/pkg/scaffold/v1/manager/webhook.go
index ed7f89ff7b8..8dff92cbfae 100644
--- a/pkg/scaffold/v1/manager/webhook.go
+++ b/pkg/scaffold/v1/manager/webhook.go
@@ -38,7 +38,7 @@ func (c *Webhook) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var webhookTemplate = `{{ .Boilerplate }}
+const webhookTemplate = `{{ .Boilerplate }}
 
 package webhook
 
diff --git a/pkg/scaffold/v1/metricsauth/kustomize_auth_proxy_patch.go b/pkg/scaffold/v1/metricsauth/kustomize_auth_proxy_patch.go
index 1eab712fa10..1a7b59d415b 100644
--- a/pkg/scaffold/v1/metricsauth/kustomize_auth_proxy_patch.go
+++ b/pkg/scaffold/v1/metricsauth/kustomize_auth_proxy_patch.go
@@ -40,7 +40,7 @@ func (c *KustomizeAuthProxyPatch) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the controller manager,
+const kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the controller manager,
 # it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
 apiVersion: apps/v1
 kind: StatefulSet
diff --git a/pkg/scaffold/v1/metricsauth/kustomize_metrics_patch.go b/pkg/scaffold/v1/metricsauth/kustomize_metrics_patch.go
index d1ba14afc18..f217c576291 100644
--- a/pkg/scaffold/v1/metricsauth/kustomize_metrics_patch.go
+++ b/pkg/scaffold/v1/metricsauth/kustomize_metrics_patch.go
@@ -40,7 +40,7 @@ func (c *KustomizePrometheusMetricsPatch) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizePrometheusMetricsPatchTemplate = `# This patch enables Prometheus scraping for the manager pod.
+const kustomizePrometheusMetricsPatchTemplate = `# This patch enables Prometheus scraping for the manager pod.
 apiVersion: apps/v1
 kind: StatefulSet
 metadata:
diff --git a/pkg/scaffold/v1/webhook/add_admissionbuilder_handler.go b/pkg/scaffold/v1/webhook/add_admissionbuilder_handler.go
index bef9ff1964c..68e5d9b9d08 100644
--- a/pkg/scaffold/v1/webhook/add_admissionbuilder_handler.go
+++ b/pkg/scaffold/v1/webhook/add_admissionbuilder_handler.go
@@ -49,7 +49,7 @@ func (a *AddAdmissionWebhookBuilderHandler) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var addAdmissionWebhookBuilderHandlerTemplate = `{{ .Boilerplate }}
+const addAdmissionWebhookBuilderHandlerTemplate = `{{ .Boilerplate }}
 
 package {{ .Server }}server
 
diff --git a/pkg/scaffold/v1/webhook/add_server.go b/pkg/scaffold/v1/webhook/add_server.go
index acf754b81bc..a558d25006b 100644
--- a/pkg/scaffold/v1/webhook/add_server.go
+++ b/pkg/scaffold/v1/webhook/add_server.go
@@ -45,7 +45,7 @@ func (a *AddServer) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var addServerTemplate = `{{ .Boilerplate }}
+const addServerTemplate = `{{ .Boilerplate }}
 
 package webhook
 
diff --git a/pkg/scaffold/v1/webhook/admissionbuilder.go b/pkg/scaffold/v1/webhook/admissionbuilder.go
index 735dc48c1ba..3ee3708fb2b 100644
--- a/pkg/scaffold/v1/webhook/admissionbuilder.go
+++ b/pkg/scaffold/v1/webhook/admissionbuilder.go
@@ -75,7 +75,7 @@ func (a *AdmissionWebhookBuilder) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var admissionWebhookBuilderTemplate = `{{ .Boilerplate }}
+const admissionWebhookBuilderTemplate = `{{ .Boilerplate }}
 
 package {{ .Type }}
 
diff --git a/pkg/scaffold/v1/webhook/admissionhandler.go b/pkg/scaffold/v1/webhook/admissionhandler.go
index 5b5ff63e0a3..829a52478a1 100644
--- a/pkg/scaffold/v1/webhook/admissionhandler.go
+++ b/pkg/scaffold/v1/webhook/admissionhandler.go
@@ -74,7 +74,7 @@ func (a *AdmissionHandler) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var addAdmissionHandlerTemplate = `{{ .Boilerplate }}
+const addAdmissionHandlerTemplate = `{{ .Boilerplate }}
 
 package {{ .Type }}
 
diff --git a/pkg/scaffold/v1/webhook/admissionwebhooks.go b/pkg/scaffold/v1/webhook/admissionwebhooks.go
index 4ac3e0386af..4fbb6bee3f2 100644
--- a/pkg/scaffold/v1/webhook/admissionwebhooks.go
+++ b/pkg/scaffold/v1/webhook/admissionwebhooks.go
@@ -51,7 +51,7 @@ func (a *AdmissionWebhooks) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var webhooksTemplate = `{{ .Boilerplate }}
+const webhooksTemplate = `{{ .Boilerplate }}
 
 package {{ .Type }}
 
diff --git a/pkg/scaffold/v1/webhook/server.go b/pkg/scaffold/v1/webhook/server.go
index 9384ed77d1a..f5700a19001 100644
--- a/pkg/scaffold/v1/webhook/server.go
+++ b/pkg/scaffold/v1/webhook/server.go
@@ -45,7 +45,7 @@ func (a *Server) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var serverTemplate = `{{ .Boilerplate }}
+const serverTemplate = `{{ .Boilerplate }}
 
 package {{ .Server }}server
 
diff --git a/pkg/scaffold/v2/authproxyservice.go b/pkg/scaffold/v2/authproxyservice.go
index b31f255406f..481f4224d18 100644
--- a/pkg/scaffold/v2/authproxyservice.go
+++ b/pkg/scaffold/v2/authproxyservice.go
@@ -38,7 +38,7 @@ func (r *AuthProxyService) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var AuthProxyServiceTemplate = `apiVersion: v1
+const AuthProxyServiceTemplate = `apiVersion: v1
 kind: Service
 metadata:
   labels:
diff --git a/pkg/scaffold/v2/certmanager/certificate.go b/pkg/scaffold/v2/certmanager/certificate.go
index 223d0dec251..2f29e0fbfd7 100644
--- a/pkg/scaffold/v2/certmanager/certificate.go
+++ b/pkg/scaffold/v2/certmanager/certificate.go
@@ -36,7 +36,7 @@ func (p *CertManager) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var certManagerTemplate = `# The following manifests contain a self-signed issuer CR and a certificate CR.
+const certManagerTemplate = `# The following manifests contain a self-signed issuer CR and a certificate CR.
 # More document can be found at https://docs.cert-manager.io
 # WARNING: Targets CertManager 0.11 check https://docs.cert-manager.io/en/latest/tasks/upgrading/index.html for breaking changes
 apiVersion: cert-manager.io/v1alpha2
diff --git a/pkg/scaffold/v2/certmanager/kustomize.go b/pkg/scaffold/v2/certmanager/kustomize.go
index 943b2f68e1c..99cbe12edcc 100644
--- a/pkg/scaffold/v2/certmanager/kustomize.go
+++ b/pkg/scaffold/v2/certmanager/kustomize.go
@@ -36,7 +36,7 @@ func (p *Kustomization) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var kustomizationTemplate = `resources:
+const kustomizationTemplate = `resources:
 - certificate.yaml
 
 configurations:
diff --git a/pkg/scaffold/v2/certmanager/kustomizeconfig.go b/pkg/scaffold/v2/certmanager/kustomizeconfig.go
index ab91ffe877e..c2f5ab43721 100644
--- a/pkg/scaffold/v2/certmanager/kustomizeconfig.go
+++ b/pkg/scaffold/v2/certmanager/kustomizeconfig.go
@@ -36,7 +36,7 @@ func (p *KustomizeConfig) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution 
+const kustomizeConfigTemplate = `# This configuration is for teaching kustomize how to update name ref and var substitution 
 nameReference:
 - kind: Issuer
   group: cert-manager.io
diff --git a/pkg/scaffold/v2/controller.go b/pkg/scaffold/v2/controller.go
index e94ccbc912b..ed7cf5a0e7d 100644
--- a/pkg/scaffold/v2/controller.go
+++ b/pkg/scaffold/v2/controller.go
@@ -64,7 +64,7 @@ func (a *Controller) GetInput() (input.Input, error) {
 	return a.Input, nil
 }
 
-var controllerTemplate = `{{ .Boilerplate }}
+const controllerTemplate = `{{ .Boilerplate }}
 
 package controllers
 
diff --git a/pkg/scaffold/v2/controller_suitetest.go b/pkg/scaffold/v2/controller_suitetest.go
index 2b5ac9487eb..739ed9436ac 100644
--- a/pkg/scaffold/v2/controller_suitetest.go
+++ b/pkg/scaffold/v2/controller_suitetest.go
@@ -61,7 +61,7 @@ func (v *ControllerSuiteTest) Validate() error {
 	return v.Resource.Validate()
 }
 
-var controllerSuiteTestTemplate = `{{ .Boilerplate }}
+const controllerSuiteTestTemplate = `{{ .Boilerplate }}
 
 package controllers
 
diff --git a/pkg/scaffold/v2/crd/enablecainjection_patch.go b/pkg/scaffold/v2/crd/enablecainjection_patch.go
index 9a6b46511b6..dc6f108c03d 100644
--- a/pkg/scaffold/v2/crd/enablecainjection_patch.go
+++ b/pkg/scaffold/v2/crd/enablecainjection_patch.go
@@ -51,7 +51,7 @@ func (g *EnableCAInjectionPatch) Validate() error {
 	return g.Resource.Validate()
 }
 
-var EnableCAInjectionPatchTemplate = `# The following patch adds a directive for certmanager to inject CA into the CRD
+const EnableCAInjectionPatchTemplate = `# The following patch adds a directive for certmanager to inject CA into the CRD
 # CRD conversion requires k8s 1.13 or later.
 apiVersion: apiextensions.k8s.io/v1beta1
 kind: CustomResourceDefinition
diff --git a/pkg/scaffold/v2/crd/enablewebhook_patch.go b/pkg/scaffold/v2/crd/enablewebhook_patch.go
index 3e4d62dd120..ecea1742682 100644
--- a/pkg/scaffold/v2/crd/enablewebhook_patch.go
+++ b/pkg/scaffold/v2/crd/enablewebhook_patch.go
@@ -51,7 +51,7 @@ func (g *EnableWebhookPatch) Validate() error {
 	return g.Resource.Validate()
 }
 
-var enableWebhookPatchTemplate = `# The following patch enables conversion webhook for CRD
+const enableWebhookPatchTemplate = `# The following patch enables conversion webhook for CRD
 # CRD conversion requires k8s 1.13 or later.
 apiVersion: apiextensions.k8s.io/v1beta1
 kind: CustomResourceDefinition
diff --git a/pkg/scaffold/v2/crd/kustomizeconfig.go b/pkg/scaffold/v2/crd/kustomizeconfig.go
index c88d75e2af1..8aea3899e3c 100644
--- a/pkg/scaffold/v2/crd/kustomizeconfig.go
+++ b/pkg/scaffold/v2/crd/kustomizeconfig.go
@@ -39,7 +39,7 @@ func (c *KustomizeConfig) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeConfigTemplate = `# This file is for teaching kustomize how to substitute name and namespace reference in CRD
+const kustomizeConfigTemplate = `# This file is for teaching kustomize how to substitute name and namespace reference in CRD
 nameReference:
 - kind: Service
   version: v1
diff --git a/pkg/scaffold/v2/crd_sample.go b/pkg/scaffold/v2/crd_sample.go
index bb67fa5124e..baa2569a83a 100644
--- a/pkg/scaffold/v2/crd_sample.go
+++ b/pkg/scaffold/v2/crd_sample.go
@@ -52,7 +52,7 @@ func (c *CRDSample) Validate() error {
 	return c.Resource.Validate()
 }
 
-var crdSampleTemplate = `apiVersion: {{ .Resource.Group }}.{{ .Domain }}/{{ .Resource.Version }}
+const crdSampleTemplate = `apiVersion: {{ .Resource.Group }}.{{ .Domain }}/{{ .Resource.Version }}
 kind: {{ .Resource.Kind }}
 metadata:
   name: {{ lower .Resource.Kind }}-sample
diff --git a/pkg/scaffold/v2/dockerfile.go b/pkg/scaffold/v2/dockerfile.go
index 65ad82c0ee0..8447eb09bb5 100644
--- a/pkg/scaffold/v2/dockerfile.go
+++ b/pkg/scaffold/v2/dockerfile.go
@@ -36,7 +36,7 @@ func (c *Dockerfile) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var dockerfileTemplate = `# Build the manager binary
+const dockerfileTemplate = `# Build the manager binary
 FROM golang:1.13 as builder
 
 WORKDIR /workspace
diff --git a/pkg/scaffold/v2/gomod.go b/pkg/scaffold/v2/gomod.go
index 7270ba7a0b6..4721d487ff4 100644
--- a/pkg/scaffold/v2/gomod.go
+++ b/pkg/scaffold/v2/gomod.go
@@ -38,7 +38,7 @@ func (g *GoMod) GetInput() (input.Input, error) {
 	return g.Input, nil
 }
 
-var goModTemplate = `
+const goModTemplate = `
 module {{ .Repo }}
 
 go 1.13
diff --git a/pkg/scaffold/v2/group.go b/pkg/scaffold/v2/group.go
index 950aac605fb..d40d577d17b 100644
--- a/pkg/scaffold/v2/group.go
+++ b/pkg/scaffold/v2/group.go
@@ -47,7 +47,7 @@ func (g *Group) Validate() error {
 	return g.Resource.Validate()
 }
 
-var groupTemplate = `{{ .Boilerplate }}
+const groupTemplate = `{{ .Boilerplate }}
 
 // Package {{.Resource.Version}} contains API Schema definitions for the {{ .Resource.GroupImportSafe }} {{.Resource.Version}} API group
 // +kubebuilder:object:generate=true
diff --git a/pkg/scaffold/v2/kustomize.go b/pkg/scaffold/v2/kustomize.go
index 075e545489c..7060a49f755 100644
--- a/pkg/scaffold/v2/kustomize.go
+++ b/pkg/scaffold/v2/kustomize.go
@@ -51,7 +51,7 @@ func (c *Kustomize) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeTemplate = `# Adds namespace to all resources.
+const kustomizeTemplate = `# Adds namespace to all resources.
 namespace: {{.Prefix}}-system
 
 # Value of this field is prepended to the
diff --git a/pkg/scaffold/v2/leaderelectionrole.go b/pkg/scaffold/v2/leaderelectionrole.go
index d43e32ffd18..fb05ae329f2 100644
--- a/pkg/scaffold/v2/leaderelectionrole.go
+++ b/pkg/scaffold/v2/leaderelectionrole.go
@@ -38,7 +38,7 @@ func (r *LeaderElectionRole) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var leaderElectionRoleTemplate = `# permissions to do leader election.
+const leaderElectionRoleTemplate = `# permissions to do leader election.
 apiVersion: rbac.authorization.k8s.io/v1
 kind: Role
 metadata:
diff --git a/pkg/scaffold/v2/leaderelectionrolebinding.go b/pkg/scaffold/v2/leaderelectionrolebinding.go
index e2f30643cf9..bc745977681 100644
--- a/pkg/scaffold/v2/leaderelectionrolebinding.go
+++ b/pkg/scaffold/v2/leaderelectionrolebinding.go
@@ -38,7 +38,7 @@ func (r *LeaderElectionRoleBinding) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var leaderElectionRoleBindingTemplate = `apiVersion: rbac.authorization.k8s.io/v1
+const leaderElectionRoleBindingTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
   name: leader-election-rolebinding
diff --git a/pkg/scaffold/v2/makefile.go b/pkg/scaffold/v2/makefile.go
index dc9973acbd7..fb15c8038d2 100644
--- a/pkg/scaffold/v2/makefile.go
+++ b/pkg/scaffold/v2/makefile.go
@@ -44,7 +44,7 @@ func (c *Makefile) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var makefileTemplate = `
+const makefileTemplate = `
 # Image URL to use all building/pushing image targets
 IMG ?= {{ .Image }}
 # Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
diff --git a/pkg/scaffold/v2/manager/config.go b/pkg/scaffold/v2/manager/config.go
index c3cf66435a3..efd5beddec0 100644
--- a/pkg/scaffold/v2/manager/config.go
+++ b/pkg/scaffold/v2/manager/config.go
@@ -40,7 +40,7 @@ func (c *Config) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var configTemplate = `apiVersion: v1
+const configTemplate = `apiVersion: v1
 kind: Namespace
 metadata:
   labels:
diff --git a/pkg/scaffold/v2/manager/kustomization.go b/pkg/scaffold/v2/manager/kustomization.go
index 91958d96b44..26bfbe64dc1 100644
--- a/pkg/scaffold/v2/manager/kustomization.go
+++ b/pkg/scaffold/v2/manager/kustomization.go
@@ -39,6 +39,6 @@ func (c *Kustomization) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeManagerTemplate = `resources:
+const kustomizeManagerTemplate = `resources:
 - manager.yaml
 `
diff --git a/pkg/scaffold/v2/metricsauth/kustomize_auth_proxy_patch.go b/pkg/scaffold/v2/metricsauth/kustomize_auth_proxy_patch.go
index 5fd520b5d8c..d7aaa06482e 100644
--- a/pkg/scaffold/v2/metricsauth/kustomize_auth_proxy_patch.go
+++ b/pkg/scaffold/v2/metricsauth/kustomize_auth_proxy_patch.go
@@ -40,7 +40,7 @@ func (c *KustomizeAuthProxyPatch) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the controller manager,
+const kustomizeAuthProxyPatchTemplate = `# This patch inject a sidecar container which is a HTTP proxy for the controller manager,
 # it performs RBAC authorization against the Kubernetes API using SubjectAccessReviews.
 apiVersion: apps/v1
 kind: Deployment
diff --git a/pkg/scaffold/v2/mgrrolebinding.go b/pkg/scaffold/v2/mgrrolebinding.go
index 1b55bc683eb..a9a7f36758f 100644
--- a/pkg/scaffold/v2/mgrrolebinding.go
+++ b/pkg/scaffold/v2/mgrrolebinding.go
@@ -38,7 +38,7 @@ func (r *ManagerRoleBinding) GetInput() (input.Input, error) {
 	return r.Input, nil
 }
 
-var managerBindingTemplate = `apiVersion: rbac.authorization.k8s.io/v1
+const managerBindingTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
   name: manager-rolebinding
@@ -51,4 +51,3 @@ subjects:
   name: default
   namespace: system
 `
-
diff --git a/pkg/scaffold/v2/prometheus/kustomize.go b/pkg/scaffold/v2/prometheus/kustomize.go
index 3b2ca9bb382..7e8eb2a6880 100644
--- a/pkg/scaffold/v2/prometheus/kustomize.go
+++ b/pkg/scaffold/v2/prometheus/kustomize.go
@@ -35,7 +35,6 @@ func (p *Kustomization) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var kustomizationTemplate = `resources:
+const kustomizationTemplate = `resources:
 - monitor.yaml
 `
-
diff --git a/pkg/scaffold/v2/prometheus/monitor.go b/pkg/scaffold/v2/prometheus/monitor.go
index 7af9798faa2..f223c467cfb 100644
--- a/pkg/scaffold/v2/prometheus/monitor.go
+++ b/pkg/scaffold/v2/prometheus/monitor.go
@@ -19,7 +19,7 @@ func (p *PrometheusServiceMonitor) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var monitorTemplate = `
+const monitorTemplate = `
 # Prometheus Monitor Service (Metrics)
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
diff --git a/pkg/scaffold/v2/rbac.go b/pkg/scaffold/v2/rbac.go
index 5c9aca89772..cb6826ad2be 100644
--- a/pkg/scaffold/v2/rbac.go
+++ b/pkg/scaffold/v2/rbac.go
@@ -39,7 +39,7 @@ func (c *KustomizeRBAC) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var kustomizeRBACTemplate = `resources:
+const kustomizeRBACTemplate = `resources:
 - role.yaml
 - role_binding.yaml
 - leader_election_role.yaml
diff --git a/pkg/scaffold/v2/types.go b/pkg/scaffold/v2/types.go
index 6101b8705ee..352b30cfebe 100644
--- a/pkg/scaffold/v2/types.go
+++ b/pkg/scaffold/v2/types.go
@@ -51,7 +51,7 @@ func (t *Types) Validate() error {
 	return t.Resource.Validate()
 }
 
-var typesTemplate = `{{ .Boilerplate }}
+const typesTemplate = `{{ .Boilerplate }}
 
 package {{ .Resource.Version }}
 
diff --git a/pkg/scaffold/v2/webhook/enablecainection_patch.go b/pkg/scaffold/v2/webhook/enablecainection_patch.go
index 242927bbc00..f9115e2df6b 100644
--- a/pkg/scaffold/v2/webhook/enablecainection_patch.go
+++ b/pkg/scaffold/v2/webhook/enablecainection_patch.go
@@ -39,7 +39,7 @@ func (c *InjectCAPatch) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var injectCAPatchTemplate = `# This patch add annotation to admission webhook config and
+const injectCAPatchTemplate = `# This patch add annotation to admission webhook config and
 # the variables $(CERTIFICATE_NAMESPACE) and $(CERTIFICATE_NAME) will be substituted by kustomize.
 apiVersion: admissionregistration.k8s.io/v1beta1
 kind: MutatingWebhookConfiguration
diff --git a/pkg/scaffold/v2/webhook/kustomization.go b/pkg/scaffold/v2/webhook/kustomization.go
index 51ca6b599e1..4562b4ff52a 100644
--- a/pkg/scaffold/v2/webhook/kustomization.go
+++ b/pkg/scaffold/v2/webhook/kustomization.go
@@ -39,7 +39,7 @@ func (c *Kustomization) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var KustomizeWebhookTemplate = `resources:
+const KustomizeWebhookTemplate = `resources:
 - manifests.yaml
 - service.yaml
 
diff --git a/pkg/scaffold/v2/webhook/kustomizeconfig.go b/pkg/scaffold/v2/webhook/kustomizeconfig.go
index c2917f2b2e4..b65baed7d5d 100644
--- a/pkg/scaffold/v2/webhook/kustomizeconfig.go
+++ b/pkg/scaffold/v2/webhook/kustomizeconfig.go
@@ -39,7 +39,7 @@ func (c *KustomizeConfigWebhook) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var KustomizeConfigWebhookTemplate = `# the following config is for teaching kustomize where to look at when substituting vars.
+const KustomizeConfigWebhookTemplate = `# the following config is for teaching kustomize where to look at when substituting vars.
 # It requires kustomize v2.1.0 or newer to work properly.
 nameReference:
 - kind: Service
diff --git a/pkg/scaffold/v2/webhook/service.go b/pkg/scaffold/v2/webhook/service.go
index 012bb8a83ba..7fcb804fec0 100644
--- a/pkg/scaffold/v2/webhook/service.go
+++ b/pkg/scaffold/v2/webhook/service.go
@@ -39,7 +39,7 @@ func (c *Service) GetInput() (input.Input, error) {
 	return c.Input, nil
 }
 
-var ServiceTemplate = `
+const ServiceTemplate = `
 apiVersion: v1
 kind: Service
 metadata:
diff --git a/pkg/scaffold/v2/webhook_manager_patch.go b/pkg/scaffold/v2/webhook_manager_patch.go
index df5de84efbe..3abcebe965a 100644
--- a/pkg/scaffold/v2/webhook_manager_patch.go
+++ b/pkg/scaffold/v2/webhook_manager_patch.go
@@ -36,7 +36,7 @@ func (p *ManagerWebhookPatch) GetInput() (input.Input, error) {
 	return p.Input, nil
 }
 
-var ManagerWebhookPatchTemplate = `apiVersion: apps/v1
+const ManagerWebhookPatchTemplate = `apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: controller-manager
diff --git a/plugins/addon/controller.go b/plugins/addon/controller.go
index fd28c9ee1fa..7772ccfc7fa 100644
--- a/plugins/addon/controller.go
+++ b/plugins/addon/controller.go
@@ -28,7 +28,7 @@ func ReplaceController(u *model.Universe) error {
 	return nil
 }
 
-var controllerTemplate = `{{ .Boilerplate }}
+const controllerTemplate = `{{ .Boilerplate }}
 
 package controllers
 
diff --git a/plugins/addon/type.go b/plugins/addon/type.go
index cd2fc5914a8..a6a6655223f 100644
--- a/plugins/addon/type.go
+++ b/plugins/addon/type.go
@@ -37,7 +37,7 @@ func JSONTag(tag string) string {
 
 // Resource.Resource
 
-var typesTemplate = `{{ .Boilerplate }}
+const typesTemplate = `{{ .Boilerplate }}
 
 package {{ .Resource.Version }}