upgrade kubebuilder to plugin/v4

.github/workflows/test.yaml

@@ -15,10 +15,10 @@ jobs:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Go 1.21
+      - name: Set up Go 1.22
         uses: actions/setup-go@v3.5.0
         with:
-          go-version: "1.21"
+          go-version: "1.22"
         id: go
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3
@@ -31,8 +31,6 @@ jobs:
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
-      - name: Get dependencies
-        run: make dependencies
       - name: Build
         run: make build
       - name: Test

Dockerfile

@@ -10,13 +10,13 @@ COPY go.sum go.sum
 RUN go mod download
 
 # Copy the go source
-COPY main.go main.go
+COPY cmd/main.go cmd/main.go
 COPY api/ api/
-COPY controllers/ controllers/
+COPY internal/controller/ internal/controller/
 COPY pkg/ pkg/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o manager cmd/main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Makefile

@@ -1,8 +1,7 @@
-
 # Image URL to use all building/pushing image targets
-IMG ?= ghcr.io/mercari/tortoise:v0.9.0
+IMG ?= ghcr.io/mercari/tortoise:v0.11.0
 # ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
-ENVTEST_K8S_VERSION = 1.27.1
+ENVTEST_K8S_VERSION = 1.31.0
 
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
@@ -11,6 +10,12 @@ else
 GOBIN=$(shell go env GOBIN)
 endif
 
+# CONTAINER_TOOL defines the container tool to be used for building images.
+# Be aware that the target commands are only tested with Docker which is
+# scaffolded by default. However, you might want to replace it to use other
+# tools. (i.e. podman)
+CONTAINER_TOOL ?= docker
+
 # Setting SHELL to bash allows bash commands to be executed by recipes.
 # Options are set to exit when a recipe line exits non-zero or a piped command fails.
 SHELL = /usr/bin/env bash -o pipefail
@@ -23,7 +28,7 @@ all: build
 
 # The help target prints out all targets with their descriptions organized
 # beneath their categories. The categories are represented by '##@' and the
-# target descriptions by '##'. The awk commands is responsible for reading the
+# target descriptions by '##'. The awk command is responsible for reading the
 # entire set of makefiles included in this invocation, looking for lines of the
 # file as xyz: ## something, and then pretty-format the target and help. Then,
 # if there's a line with ##@ something, that gets pretty-printed as a category.
@@ -39,11 +44,8 @@ help: ## Display this help.
 ##@ Development
 
 .PHONY: manifests
-manifests: kustomize controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
+manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
 	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases
-	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
-	$(KUSTOMIZE) build config/default -o manifests/default
-	$(KUSTOMIZE) build config/crd -o manifests/crd
 
 .PHONY: generate
 generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
@@ -57,39 +59,78 @@ fmt: ## Run go fmt against code.
 vet: ## Run go vet against code.
 	go vet ./...
 
-test: manifests generate fmt vet envtest ginkgo ## Run tests.
-	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" $(GINKGO) -r --cover --coverprofile cover.out
-
-.PHONY: test-debug
-test-debug: envtest ginkgo
-	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" DEBUG=true $(GINKGO) -r --fail-fast -v --progress
+.PHONY: test
+test: manifests generate fmt vet envtest ## Run tests.
+	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test $$(go list ./... | grep -v /e2e) -coverprofile cover.out
+
+# TODO(user): To use a different vendor for e2e tests, modify the setup under 'tests/e2e'.
+# The default setup assumes Kind is pre-installed and builds/loads the Manager Docker image locally.
+# Prometheus and CertManager are installed by default; skip with:
+# - PROMETHEUS_INSTALL_SKIP=true
+# - CERT_MANAGER_INSTALL_SKIP=true
+.PHONY: test-e2e
+test-e2e: manifests generate fmt vet ## Run the e2e tests. Expected an isolated environment using Kind.
+	@command -v kind >/dev/null 2>&1 || { \
+		echo "Kind is not installed. Please install Kind manually."; \
+		exit 1; \
+	}
+	@kind get clusters | grep -q 'kind' || { \
+		echo "No Kind cluster is running. Please start a Kind cluster before running the e2e tests."; \
+		exit 1; \
+	}
+	go test ./test/e2e/ -v -ginkgo.v
 
-.PHONY: test-update
-test-update: envtest ginkgo
-	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" UPDATE_TESTCASES=true $(GINKGO) -r --fail-fast 
-
-.PHONY: test-tortoisectl
-test-tortoisectl: envtest
-	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)"	go test -timeout 30s -v -run Test_TortoiseCtlStop ./cmd/tortoisectl/test/... 
-
-GINKGO ?= $(LOCALBIN)/ginkgo
-GINKGO_VERSION ?= v2.1.4
+.PHONY: lint
+lint: golangci-lint ## Run golangci-lint linter
+	$(GOLANGCI_LINT) run
 
-.PHONY: ginkgo
-ginkgo: $(GINKGO) ## Download controller-gen locally if necessary.
-$(GINKGO): $(LOCALBIN)
-	test -s $(LOCALBIN)/ginkgo || GOBIN=$(LOCALBIN) go install github.com/onsi/ginkgo/v2/ginkgo@$(GINKGO_VERSION)
+.PHONY: lint-fix
+lint-fix: golangci-lint ## Run golangci-lint linter and perform fixes
+	$(GOLANGCI_LINT) run --fix
 
 ##@ Build
 
 .PHONY: build
-build: generate fmt vet ## Build manager binary.
-	go build -o bin/manager main.go
-	go build -o bin/tortoisectl cmd/tortoisectl/main.go
+build: manifests generate fmt vet ## Build manager binary.
+	go build -o bin/manager cmd/main.go
 
 .PHONY: run
 run: manifests generate fmt vet ## Run a controller from your host.
-	go run ./main.go
+	go run ./cmd/main.go
+
+# If you wish to build the manager image targeting other platforms you can use the --platform flag.
+# (i.e. docker build --platform linux/arm64). However, you must enable docker buildKit for it.
+# More info: https://docs.docker.com/develop/develop-images/build_enhancements/
+.PHONY: docker-build
+docker-build: ## Build docker image with the manager.
+	$(CONTAINER_TOOL) build -t ${IMG} .
+
+.PHONY: docker-push
+docker-push: ## Push docker image with the manager.
+	$(CONTAINER_TOOL) push ${IMG}
+
+# PLATFORMS defines the target platforms for the manager image be built to provide support to multiple
+# architectures. (i.e. make docker-buildx IMG=myregistry/mypoperator:0.0.1). To use this option you need to:
+# - be able to use docker buildx. More info: https://docs.docker.com/build/buildx/
+# - have enabled BuildKit. More info: https://docs.docker.com/develop/develop-images/build_enhancements/
+# - be able to push the image to your registry (i.e. if you do not set a valid value via IMG=<myregistry/image:<tag>> then the export will fail)
+# To adequately provide solutions that are compatible with multiple platforms, you should consider using this option.
+PLATFORMS ?= linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
+.PHONY: docker-buildx
+docker-buildx: ## Build and push docker image for the manager for cross-platform support
+	# copy existing Dockerfile and insert --platform=${BUILDPLATFORM} into Dockerfile.cross, and preserve the original Dockerfile
+	sed -e '1 s/\(^FROM\)/FROM --platform=\$$\{BUILDPLATFORM\}/; t' -e ' 1,// s//FROM --platform=\$$\{BUILDPLATFORM\}/' Dockerfile > Dockerfile.cross
+	- $(CONTAINER_TOOL) buildx create --name project-v4-builder
+	$(CONTAINER_TOOL) buildx use project-v4-builder
+	- $(CONTAINER_TOOL) buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile.cross .
+	- $(CONTAINER_TOOL) buildx rm project-v4-builder
+	rm Dockerfile.cross
+
+.PHONY: build-installer
+build-installer: manifests generate kustomize ## Generate a consolidated YAML with CRDs and deployment.
+	mkdir -p dist
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	$(KUSTOMIZE) build config/default > dist/install.yaml
 
 ##@ Deployment
 
@@ -99,63 +140,73 @@ endif
 
 .PHONY: install
 install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
-	$(KUSTOMIZE) build config/crd | kubectl apply -f -
+	$(KUSTOMIZE) build config/crd | $(KUBECTL) apply -f -
 
 .PHONY: uninstall
 uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
-	$(KUSTOMIZE) build config/crd | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+	$(KUSTOMIZE) build config/crd | $(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f -
 
 .PHONY: deploy
 deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
-	$(KUSTOMIZE) build config/default | kubectl apply -f -
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	$(KUSTOMIZE) build config/default | $(KUBECTL) apply -f -
 
 .PHONY: undeploy
-undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
-	$(KUSTOMIZE) build config/default | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+undeploy: kustomize ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/default | $(KUBECTL) delete --ignore-not-found=$(ignore-not-found) -f -
 
-##@ Build Dependencies
+##@ Dependencies
 
 ## Location to install dependencies to
 LOCALBIN ?= $(shell pwd)/bin
 $(LOCALBIN):
 	mkdir -p $(LOCALBIN)
 
 ## Tool Binaries
+KUBECTL ?= kubectl
 KUSTOMIZE ?= $(LOCALBIN)/kustomize
 CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
+GOLANGCI_LINT = $(LOCALBIN)/golangci-lint
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v3.8.7
-CONTROLLER_TOOLS_VERSION ?= v0.13.0
+KUSTOMIZE_VERSION ?= v5.4.3
+CONTROLLER_TOOLS_VERSION ?= v0.16.1
+ENVTEST_VERSION ?= release-0.19
+GOLANGCI_LINT_VERSION ?= v1.59.1
 
-KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
 .PHONY: kustomize
 kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary.
 $(KUSTOMIZE): $(LOCALBIN)
-	test -s $(LOCALBIN)/kustomize || { curl -s $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); }
+	$(call go-install-tool,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v5,$(KUSTOMIZE_VERSION))
 
 .PHONY: controller-gen
 controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
 $(CONTROLLER_GEN): $(LOCALBIN)
-	test -s $(LOCALBIN)/controller-gen || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
+	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen,$(CONTROLLER_TOOLS_VERSION))
 
 .PHONY: envtest
-envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
+envtest: $(ENVTEST) ## Download setup-envtest locally if necessary.
 $(ENVTEST): $(LOCALBIN)
-	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
-
-## Install tools
-.PHONY: dependencies
-dependencies:
-	@./scripts/dependencies.sh
-
-.PHONY: lint
-lint:
-	golangci-lint run $(args) ./...
-
-.PHONY: lint-fix
-lint-fix:
-	# Note: gci's autofix on golangci-lint was disabled. We can remove this if that is enabled again.
-	find . -name "*.go" | xargs gci write --section Standard --section Default --section "Prefix(github.com/mercari/tortoise)" --section blank --section dot
-	@make lint args='--fix -v' cons_args='-v'
+	$(call go-install-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest,$(ENVTEST_VERSION))
+
+.PHONY: golangci-lint
+golangci-lint: $(GOLANGCI_LINT) ## Download golangci-lint locally if necessary.
+$(GOLANGCI_LINT): $(LOCALBIN)
+	$(call go-install-tool,$(GOLANGCI_LINT),github.com/golangci/golangci-lint/cmd/golangci-lint,$(GOLANGCI_LINT_VERSION))
+
+# go-install-tool will 'go install' any package with custom target and name of binary, if it doesn't exist
+# $1 - target path with name of binary
+# $2 - package url which can be installed
+# $3 - specific version of package
+define go-install-tool
+@[ -f "$(1)-$(3)" ] || { \
+set -e; \
+package=$(2)@$(3) ;\
+echo "Downloading $${package}" ;\
+rm -f $(1) || true ;\
+GOBIN=$(LOCALBIN) go install $${package} ;\
+mv $(1) $(1)-$(3) ;\
+} ;\
+ln -sf $(1)-$(3) $(1)
+endef

PROJECT

@@ -4,7 +4,7 @@
 # More info: https://book.kubebuilder.io/reference/project-config.html
 domain: mercari.com
 layout:
-- go.kubebuilder.io/v3
+- go.kubebuilder.io/v4
 projectName: tortoise
 repo: github.com/mercari/tortoise
 resources:

api/autoscaling/v2/webhook_suite_test.go

@@ -37,8 +37,8 @@ import (
 	"time"
 
 	//+kubebuilder:scaffold:imports
-	admissionv1beta1 "k8s.io/api/admission/v1beta1"
-	admissionv1 "k8s.io/api/admissionregistration/v1"
+	admissionv1 "k8s.io/api/admission/v1"
+	admissionregistrationv1 "k8s.io/api/admissionregistration/v1"
 	autoscalingv1 "k8s.io/api/autoscaling/v1"
 	autoscalingv2 "k8s.io/api/autoscaling/v2"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -50,6 +50,8 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/envtest"
 	logf "sigs.k8s.io/controller-runtime/pkg/log"
 	"sigs.k8s.io/controller-runtime/pkg/log/zap"
+	metricsserver "sigs.k8s.io/controller-runtime/pkg/metrics/server"
+	"sigs.k8s.io/controller-runtime/pkg/webhook"
 
 	"github.com/mercari/tortoise/api/v1beta3"
 	"github.com/mercari/tortoise/pkg/config"
@@ -84,8 +86,8 @@ var _ = BeforeSuite(func() {
 
 	y, err := os.ReadFile(filepath.Join("..", "..", "..", "config", "webhook", "manifests.yaml"))
 	Expect(err).NotTo(HaveOccurred())
-	mutatingWebhookConfig := &admissionv1.MutatingWebhookConfiguration{}
-	validatingWebhookConfig := &admissionv1.ValidatingWebhookConfiguration{}
+	mutatingWebhookConfig := &admissionregistrationv1.MutatingWebhookConfiguration{}
+	validatingWebhookConfig := &admissionregistrationv1.ValidatingWebhookConfiguration{}
 	d := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(y), 4096)
 	err = d.Decode(mutatingWebhookConfig)
 	Expect(err).NotTo(HaveOccurred())
@@ -119,8 +121,8 @@ var _ = BeforeSuite(func() {
 		ErrorIfCRDPathMissing: false,
 		WebhookInstallOptions: envtest.WebhookInstallOptions{
 			Paths:              []string{filepath.Join("..", "..", "..", "config", "webhook", "service.yaml")},
-			MutatingWebhooks:   []*admissionv1.MutatingWebhookConfiguration{mutatingWebhookConfig},
-			ValidatingWebhooks: []*admissionv1.ValidatingWebhookConfiguration{validatingWebhookConfig},
+			MutatingWebhooks:   []*admissionregistrationv1.MutatingWebhookConfiguration{mutatingWebhookConfig},
+			ValidatingWebhooks: []*admissionregistrationv1.ValidatingWebhookConfiguration{validatingWebhookConfig},
 		},
 	}
 
@@ -139,7 +141,7 @@ var _ = BeforeSuite(func() {
 	err = autoscalingv2.AddToScheme(scheme)
 	Expect(err).NotTo(HaveOccurred())
 
-	err = admissionv1beta1.AddToScheme(scheme)
+	err = admissionv1.AddToScheme(scheme)
 	Expect(err).NotTo(HaveOccurred())
 
 	//+kubebuilder:scaffold:scheme
@@ -151,12 +153,14 @@ var _ = BeforeSuite(func() {
 	// start webhook server using Manager
 	webhookInstallOptions := &testEnv.WebhookInstallOptions
 	mgr, err := ctrl.NewManager(cfg, ctrl.Options{
-		Scheme:             scheme,
-		Host:               webhookInstallOptions.LocalServingHost,
-		Port:               webhookInstallOptions.LocalServingPort,
-		CertDir:            webhookInstallOptions.LocalServingCertDir,
-		LeaderElection:     false,
-		MetricsBindAddress: "0",
+		Scheme:         scheme,
+		LeaderElection: false,
+		WebhookServer: webhook.NewServer(webhook.Options{
+			Host:    webhookInstallOptions.LocalServingHost,
+			Port:    webhookInstallOptions.LocalServingPort,
+			CertDir: webhookInstallOptions.LocalServingCertDir,
+		}),
+		Metrics: metricsserver.Options{BindAddress: "0"},
 	})
 	Expect(err).NotTo(HaveOccurred())
 	config, err := config.ParseConfig("")