Install kustomize if not present

pkg/scaffold/init.go

@@ -40,6 +40,8 @@ const (
 	ControllerRuntimeVersion = "v0.5.0"
 	// ControllerToolsVersion is the kubernetes-sigs/controller-tools version to be used in the project
 	ControllerToolsVersion = "v0.2.5"
+	// KustomizeVersion is the kubernetes-sigs/kustomize version to be used in the project
+	KustomizeVersion = "v3.5.4"
 
 	imageName = "controller:latest"
 )
@@ -160,6 +162,7 @@ func (s *initScaffolder) scaffoldV2() error {
 			Image:                  imageName,
 			BoilerplatePath:        s.boilerplatePath,
 			ControllerToolsVersion: ControllerToolsVersion,
+			KustomizeVersion:       KustomizeVersion,
 		},
 		&templatesv2.Dockerfile{},
 		&templatesv2.Kustomize{},

pkg/scaffold/internal/templates/v2/makefile.go

@@ -32,6 +32,8 @@ type Makefile struct {
 	BoilerplatePath string
 	// Controller tools version to use in the project
 	ControllerToolsVersion string
+	//Kustomize version to use in the project
+	KustomizeVersion string
 }
 
 // SetTemplateDefaults implements input.Template
@@ -80,17 +82,17 @@ run: generate fmt vet manifests
 	go run ./main.go
 
 # Install CRDs into a cluster
-install: manifests
-	kustomize build config/crd | kubectl apply -f -
+install: manifests kustomize
+	$(KUSTOMIZE) build config/crd | kubectl apply -f -
 
 # Uninstall CRDs from a cluster
-uninstall: manifests
-	kustomize build config/crd | kubectl delete -f -
+uninstall: manifests kustomize
+	$(KUSTOMIZE) build config/crd | kubectl delete -f -
 
 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config
-deploy: manifests
+deploy: manifests kustomize
 	cd config/manager && kustomize edit set image controller=${IMG}
-	kustomize build config/default | kubectl apply -f -
+	$(KUSTOMIZE) build config/default | kubectl apply -f -
 
 # Generate manifests e.g. CRD, RBAC etc.
 manifests: controller-gen
@@ -132,4 +134,19 @@ CONTROLLER_GEN=$(GOBIN)/controller-gen
 else
 CONTROLLER_GEN=$(shell which controller-gen)
 endif
+
+kustomize:
+ifeq (, $(shell which kustomize))
+	@{ \
+	set -e ;\
+	KUSTOMIZE_GEN_TMP_DIR=$$(mktemp -d) ;\
+	cd $$KUSTOMIZE_GEN_TMP_DIR ;\
+	go mod init tmp ;\
+	go get sigs.k8s.io/kustomize/kustomize/v3@{{ .KustomizeVersion }} ;\
+	rm -rf $$KUSTOMIZE_GEN_TMP_DIR ;\
+	}
+KUSTOMIZE=$(GOBIN)/kustomize
+else
+KUSTOMIZE=$(shell which kustomize)
+endif
 `