Refactor using kubebuilder v3.8.0

.dockerignore

@@ -1,5 +1,4 @@
 # More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
-# Ignore all files which are not go type
-!**/*.go
-!**/*.mod
-!**/*.sum
+# Ignore build and test binaries.
+bin/
+testbin/

.github/workflows/cicd.yml

@@ -13,15 +13,15 @@ on:
   pull_request:
 
 env:
-  GOVER: 1.17.2
+  GOVER: 1.20.2
   CGO_ENABLED: 0
 
 jobs:
   test:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-go@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
         with:
           go-version: ${{ env.GOVER }}
       - name: kubebuilder tests
@@ -36,11 +36,11 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - uses: actions/setup-go@v2
+      - uses: actions/setup-go@v3
         with:
           go-version: ${{ env.GOVER }}
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v3
         with:
           args: --config=./.github/workflows/linters/.golangci.yml
-          version: "v1.47.2"
+          version: "v1.51.2"

.github/workflows/linters/.golangci.yml

@@ -19,7 +19,6 @@ linters:
     - forbidigo
     - gofumpt
     - bodyclose
-    - deadcode
     - depguard
     - dogsled
     - dupl
@@ -45,13 +44,11 @@ linters:
     - rowserrcheck
     - exportloopref
     - staticcheck
-    - structcheck
     - stylecheck
     - typecheck
     - unconvert
     - unparam
     - unused
-    - varcheck
     - whitespace
     - asciicheck
     - gochecknoglobals

.mk/lint.mk

@@ -4,18 +4,14 @@ GOFUMPT_FLAGS := -l -w .
 GODOT_CMD := docker run --rm -it -v $(shell pwd):/work ghcr.io/hellt/godot:1.4.11
 GODOT_FLAGS := -w .
 
-GOLINES_CMD := docker run --rm -it -v $(shell pwd):/work ghcr.io/hellt/golines:0.10.0 golines
-GOLINES_FLAGS := -w .
-
-GOLANGCI_CMD := docker run -it --rm -v $(shell pwd):/app -w /app golangci/golangci-lint:v1.47.2 golangci-lint
+GOLANGCI_CMD := docker run -it --rm -v $(shell pwd):/app -w /app golangci/golangci-lint:v1.51.2 golangci-lint
 GOLANGCI_FLAGS := --config ./.github/workflows/linters/.golangci.yml run -v --fix
 
 
 # when running in a CI env we use locally installed bind
 ifdef CI
 	GOFUMPT_CMD := GOFUMPT_SPLIT_LONG_LINES=on gofumpt
 	GODOT_CMD := godot
-	GOLINES_CMD := golines
 	GOLANGCI_CMD := golangci-lint
 endif
 
@@ -28,8 +24,5 @@ gofumpt:
 godot:
 	${GODOT_CMD} ${GODOT_FLAGS}
 
-golines:
-	${GOLINES_CMD} ${GOLINES_FLAGS}
-
 golangci: # linting with golang-ci lint container
 	${GOLANGCI_CMD} ${GOLANGCI_FLAGS}

Dockerfile

@@ -3,7 +3,9 @@
 # SPDX-License-Identifier: BSD-3-Clause
 
 # Build the manager binary
-FROM golang:1.17 as builder
+FROM golang:1.19 as builder
+ARG TARGETOS
+ARG TARGETARCH
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -17,10 +19,16 @@ RUN go mod download
 COPY main.go main.go
 COPY api/ api/
 COPY controllers/ controllers/
+# srl-controller specific manifests that we embed in the controller binary
+# such as configmaps with entrypoints, topology files and auxiliary scripts.
 COPY manifests/ manifests/
 
 # Build
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
+# the GOARCH has not a default value to allow the binary be built according to the host where the command
+# was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
+# the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
+# by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
+RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o manager main.go
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Makefile

@@ -2,8 +2,8 @@ include .mk/lint.mk
 
 # Image URL to use all building/pushing image targets
 IMG ?= controller:latest
-# Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
-CRD_OPTIONS ?= "crd:trivialVersions=true,preserveUnknownFields=false"
+# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
+ENVTEST_K8S_VERSION = 1.25.0
 
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
@@ -13,11 +13,11 @@ GOBIN=$(shell go env GOBIN)
 endif
 
 # Setting SHELL to bash allows bash commands to be executed by recipes.
-# This is a requirement for 'setup-envtest.sh' in the test target.
 # Options are set to exit when a recipe line exits non-zero or a piped command fails.
 SHELL = /usr/bin/env bash -o pipefail
 .SHELLFLAGS = -ec
 
+.PHONY: all
 all: build
 
 ##@ General
@@ -33,74 +33,126 @@ all: build
 # More info on the awk command:
 # http://linuxcommand.org/lc3_adv_awk.php
 
+.PHONY: help
 help: ## Display this help.
 	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
 
 ##@ Development
 
+.PHONY: manifests
 manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
-	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases
+	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./..." output:crd:artifacts:config=config/crd/bases
 
+.PHONY: generate
 generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
 	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
 
+.PHONY: fmt
 fmt: ## Run go fmt against code.
 	go fmt ./...
 
+.PHONY: vet
 vet: ## Run go vet against code.
 	go vet ./...
 
-ENVTEST_ASSETS_DIR=$(shell pwd)/testbin
-test: manifests generate fmt vet ## Run tests.
-	mkdir -p ${ENVTEST_ASSETS_DIR}
-	test -f ${ENVTEST_ASSETS_DIR}/setup-envtest.sh || curl -sSLo ${ENVTEST_ASSETS_DIR}/setup-envtest.sh https://raw.githubusercontent.com/kubernetes-sigs/controller-runtime/v0.8.3/hack/setup-envtest.sh
-	source ${ENVTEST_ASSETS_DIR}/setup-envtest.sh; fetch_envtest_tools $(ENVTEST_ASSETS_DIR); setup_envtest_env $(ENVTEST_ASSETS_DIR); CGO_ENABLED=1 go test ./... -race -coverprofile coverage.out -covermode atomic
+.PHONY: test
+test: manifests generate fmt vet envtest ## Run tests.
+	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test ./... -coverprofile cover.out
 
 ##@ Build
 
-build: generate fmt vet ## Build manager binary.
+.PHONY: build
+build: manifests generate fmt vet ## Build manager binary.
 	go build -o bin/manager main.go
 
+.PHONY: run
 run: manifests generate fmt vet ## Run a controller from your host.
 	go run ./main.go
 
+# If you wish built 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: test ## Build docker image with the manager.
 	docker build -t ${IMG} .
 
+.PHONY: docker-push
 docker-push: ## Push docker image with the manager.
 	docker push ${IMG}
 
+# PLATFORMS defines the target platforms for  the manager image be build to provide support to multiple
+# architectures. (i.e. make docker-buildx IMG=myregistry/mypoperator:0.0.1). To use this option you need to:
+# - able to use docker buildx . More info: https://docs.docker.com/build/buildx/
+# - have enable BuildKit, More info: https://docs.docker.com/develop/develop-images/build_enhancements/
+# - be able to push the image for your registry (i.e. if you do not inform a valid value via IMG=<myregistry/image:<tag>> then the export will fail)
+# To properly provided solutions that supports more than one platform you should use this option.
+PLATFORMS ?= linux/arm64,linux/amd64,linux/s390x,linux/ppc64le
+.PHONY: docker-buildx
+docker-buildx: test ## 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
+	- docker buildx create --name project-v3-builder
+	docker buildx use project-v3-builder
+	- docker buildx build --push --platform=$(PLATFORMS) --tag ${IMG} -f Dockerfile.cross .
+	- docker buildx rm project-v3-builder
+	rm Dockerfile.cross
+
 ##@ Deployment
 
+ifndef ignore-not-found
+  ignore-not-found = false
+endif
+
+.PHONY: install
 install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
 	$(KUSTOMIZE) build config/crd | kubectl apply -f -
 
-uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config.
-	$(KUSTOMIZE) build config/crd | kubectl delete -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 -
 
+.PHONY: deploy
 deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
 	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
 	$(KUSTOMIZE) build config/default | kubectl apply -f -
 
-undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config.
-	$(KUSTOMIZE) build config/default | kubectl delete -f -
-
-# check source for latest methods on getting these binaries
-# https://github.com/kubernetes-sigs/kubebuilder/blob/95f55fcf8b87397f7fdf97456b10ff70b31f728e/pkg/plugins/golang/v3/scaffolds/internal/templates/makefile.go
-CONTROLLER_GEN = $(shell pwd)/bin/controller-gen
-controller-gen: ## Download controller-gen locally if necessary.
-	$(call go-install,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.4.1)
-
-KUSTOMIZE = $(shell pwd)/bin/kustomize
-kustomize: ## Download kustomize locally if necessary.
-	$(call go-install,$(KUSTOMIZE),sigs.k8s.io/kustomize/kustomize/v3@v3.8.7)
-
-# go-install will 'go get' any package $2 and install it to $1.
-PROJECT_DIR := $(shell dirname $(abspath $(firstword $(MAKEFILE_LIST))))
-define go-install
-@[ -f $(1) ] || { \
-set -e ;\
-echo "Downloading $(2)" ;\
-GOBIN=$(PROJECT_DIR)/bin go install $(2) ;\
-}
-endef
+.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 -
+
+##@ Build Dependencies
+
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
+
+## Tool Binaries
+KUSTOMIZE ?= $(LOCALBIN)/kustomize
+CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
+ENVTEST ?= $(LOCALBIN)/setup-envtest
+
+## Tool Versions
+KUSTOMIZE_VERSION ?= v3.8.7
+CONTROLLER_TOOLS_VERSION ?= v0.10.0
+
+KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
+.PHONY: kustomize
+kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary. If wrong version is installed, it will be removed before downloading.
+$(KUSTOMIZE): $(LOCALBIN)
+	@if test -x $(LOCALBIN)/kustomize && ! $(LOCALBIN)/kustomize version | grep -q $(KUSTOMIZE_VERSION); then \
+		echo "$(LOCALBIN)/kustomize version is not expected $(KUSTOMIZE_VERSION). Removing it before installing."; \
+		rm -rf $(LOCALBIN)/kustomize; \
+	fi
+	test -s $(LOCALBIN)/kustomize || { curl -Ss $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); }
+
+.PHONY: controller-gen
+controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary. If wrong version is installed, it will be overwritten.
+$(CONTROLLER_GEN): $(LOCALBIN)
+	test -s $(LOCALBIN)/controller-gen && $(LOCALBIN)/controller-gen --version | grep -q $(CONTROLLER_TOOLS_VERSION) || \
+	GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
+
+.PHONY: envtest
+envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
+$(ENVTEST): $(LOCALBIN)
+	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest

PROJECT

@@ -11,6 +11,6 @@ resources:
     domain: srlinux.dev
     group: kne
     kind: Srlinux
-    path: github.com/srl-labs/srl-controller/api/v1alpha1
-    version: v1alpha1
+    path: github.com/srl-labs/srl-controller/api/v1
+    version: v1
 version: "3"

README.md

@@ -2,6 +2,8 @@
 
 This is a k8s controller for running and managing SR Linux nodes launched from [openconfig/kne](https://github.com/openconfig/kne) topology.
 
+Built with [kubebuilder v3.8.0](https://github.com/kubernetes-sigs/kubebuilder/releases/tag/v3.8.0).
+
 ## Install
 
 To install the latest version of this controller on a cluster referenced in `~/.kube/config`, issue the following command: