Makefile

# Image URL to use all building/pushing image targets
IMG ?= ghcr.io/kluctl/flux-kluctl-controller:latest
# Produce CRDs that work back to Kubernetes 1.16
CRD_OPTIONS ?= crd:crdVersions=v1
SOURCE_VER ?= $(shell go list -m all | grep github.com/fluxcd/source-controller/api | awk '{print $$2}')

# Repository root based on Git metadata
REPOSITORY_ROOT := $(shell git rev-parse --show-toplevel)
BUILD_DIR := $(REPOSITORY_ROOT)/build

# If gobin not set, create one on ./build and add to path.
ifeq (,$(shell go env GOBIN))
GOBIN=$(BUILD_DIR)/gobin
else
GOBIN=$(shell go env GOBIN)
endif
export PATH:=$(GOBIN):${PATH}

# Allows for defining additional Go test args, e.g. '-tags integration'.
GO_TEST_ARGS ?=

# Allows for defining additional Docker buildx arguments, e.g. '--push'.
BUILD_ARGS ?= --load
# Architectures to build images for.
BUILD_PLATFORMS ?= linux/amd64

# Architecture to use envtest with
ENVTEST_ARCH ?= amd64

all: manager

# Download the envtest binaries to testbin
ENVTEST_ASSETS_DIR=$(BUILD_DIR)/testbin
ENVTEST_KUBERNETES_VERSION?=latest
install-envtest: setup-envtest
	mkdir -p ${ENVTEST_ASSETS_DIR}
	$(ENVTEST) use $(ENVTEST_KUBERNETES_VERSION) --arch=$(ENVTEST_ARCH) --bin-dir=$(ENVTEST_ASSETS_DIR)

# Run controller tests
KUBEBUILDER_ASSETS?="$(shell $(ENVTEST) --arch=$(ENVTEST_ARCH) use -i $(ENVTEST_KUBERNETES_VERSION) --bin-dir=$(ENVTEST_ASSETS_DIR) -p path)"
test: tidy generate fmt vet manifests api-docs install-envtest
	KUBEBUILDER_ASSETS=$(KUBEBUILDER_ASSETS) go test ./... $(GO_TEST_ARGS) -v -coverprofile cover.out

# Build manager binary
manager: generate fmt vet
	go build -o $(BUILD_DIR)/bin/manager main.go

# Run against the configured Kubernetes cluster in ~/.kube/config
run: generate fmt vet manifests
	go run ./main.go --metrics-addr=:8089

# Install CRDs into a cluster
install: manifests
	kustomize build config/crd | kubectl apply -f -

# Uninstall CRDs from a cluster
uninstall: manifests
	kustomize build config/crd | kubectl delete -f -

# Deploy controller in the configured Kubernetes cluster in ~/.kube/config
deploy: manifests
	cd config/manager && kustomize edit set image ghcr.io/kluctl/flux-kluctl-controller=${IMG}
	kustomize build config/default | kubectl apply -f -

# Deploy controller dev image in the configured Kubernetes cluster in ~/.kube/config
dev-deploy: manifests
	mkdir -p config/dev && cp config/default/* config/dev
	cd config/dev && kustomize edit set image ghcr.io/kluctl/flux-kluctl-controller=${IMG}
	kustomize build config/dev | kubectl apply -f -
	rm -rf config/dev

# Delete dev deployment and CRDs
dev-cleanup: manifests
	mkdir -p config/dev && cp config/default/* config/dev
	cd config/dev && kustomize edit set image ghcr.io/kluctl/flux-kluctl-controller=${IMG}
	kustomize build config/dev | kubectl delete -f -
	rm -rf config/dev

# Generate manifests e.g. CRD, RBAC etc.
manifests: controller-gen
	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role paths="./..." output:crd:artifacts:config="config/crd/bases"
	cd api; $(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role paths="./..." output:crd:artifacts:config="../config/crd/bases"

# Generate API reference documentation
api-docs: gen-crd-api-reference-docs
	$(GEN_CRD_API_REFERENCE_DOCS) -v=4 -api-dir=./api/v1alpha1 -config=./hack/api-docs/config.json -template-dir=./hack/api-docs/template -out-file=./docs/api/flux-kluctl-controller.md

# Run go mod tidy
tidy:
	cd api; rm -f go.sum; go mod tidy -compat=1.17
	rm -f go.sum; go mod tidy -compat=1.17

# Run go fmt against code
fmt:
	go fmt ./...
	cd api; go fmt ./...

# Run go vet against code
vet:
	go vet ./...
	cd api; go vet ./...

# Generate code
generate: controller-gen
	cd api; $(CONTROLLER_GEN) object:headerFile="../hack/boilerplate.go.txt" paths="./..."

# Build the docker image
docker-build: manager
	cp $(BUILD_DIR)/bin/manager ./manager
	docker buildx build \
	--platform=$(BUILD_PLATFORMS) \
	-t ${IMG} \
	${BUILD_ARGS} .

# Push the docker image
docker-push:
	docker push ${IMG}

# Set the docker image in-cluster
docker-deploy:
	kubectl -n flux-system set image deployment/flux-kluctl-controller manager=${IMG}

# Find or download controller-gen
CONTROLLER_GEN = $(GOBIN)/controller-gen
.PHONY: controller-gen
controller-gen: ## Download controller-gen locally if necessary.
	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen@v0.7.0)

# Find or download gen-crd-api-reference-docs
GEN_CRD_API_REFERENCE_DOCS = $(GOBIN)/gen-crd-api-reference-docs
.PHONY: gen-crd-api-reference-docs
gen-crd-api-reference-docs:
	$(call go-install-tool,$(GEN_CRD_API_REFERENCE_DOCS),github.com/ahmetb/gen-crd-api-reference-docs@v0.3.0)

ENVTEST = $(GOBIN)/setup-envtest
.PHONY: envtest
setup-envtest: ## Download envtest-setup locally if necessary.
	$(call go-install-tool,$(ENVTEST),sigs.k8s.io/controller-runtime/tools/setup-envtest@latest)

# go-install-tool will 'go install' any package $2 and install it to $1.
PROJECT_DIR := $(shell dirname $(abspath $(lastword $(MAKEFILE_LIST))))
define go-install-tool
@[ -f $(1) ] || { \
set -e ;\
TMP_DIR=$$(mktemp -d) ;\
cd $$TMP_DIR ;\
go mod init tmp ;\
echo "Downloading $(2)" ;\
GOBIN=$(GOBIN) go install $(2) ;\
rm -rf $$TMP_DIR ;\
}
endef

# Build fuzzers
fuzz-build:
	rm -rf $(BUILD_DIR)/fuzz/
	mkdir -p $(BUILD_DIR)/fuzz/out/

	docker build . --tag local-fuzzing:latest -f tests/fuzz/Dockerfile.builder
	docker run --rm \
		-e FUZZING_LANGUAGE=go -e SANITIZER=address \
		-e CIFUZZ_DEBUG='True' -e OSS_FUZZ_PROJECT_NAME=fluxcd \
		-v "$(BUILD_DIR)/fuzz/out":/out \
		local-fuzzing:latest

fuzz-smoketest: fuzz-build
	docker run --rm \
		-v "$(BUILD_DIR)/fuzz/out":/out \
		-v "$(shell pwd)/tests/fuzz/oss_fuzz_run.sh":/runner.sh \
		local-fuzzing:latest \
		bash -c "/runner.sh"