Makefile

# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
ENVTEST_K8S_VERSION = 1.31.0

# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
ifeq (,$(shell go env GOBIN))
GOBIN=$(shell go env GOPATH)/bin
else
GOBIN=$(shell go env GOBIN)
endif

# 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
.SHELLFLAGS = -ec

.PHONY: manifests
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
	./hack/crds.sh

.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 ./...

.PHONY: local-build
local-build:
	DOCKER_BUILDKIT=1 docker build -t localhost:5001/qscaler:latest .

.PHONY: local-push
local-push:
	docker push localhost:5001/qscaler:latest

.PHONY: init-kind
init-kind:
ifndef CLUSTER_DEPLOYED
	sh ./hack/init-kind.sh
else
	$(info Kind qscaler cluster exists, skipping cluster installation)
endif
	kubectl config set-context kind-qscaler

.PHONY: init-qscaler
init-qscaler: init-kind local-build
	sh ./hack/init-qscaler.sh

.PHONY: init-redis
init-redis: init-kind
	sh ./hack/init-redis.sh

.PHONY: lint
lint: golangci-lint ## Run golangci-lint linter
	$(GOLANGCI_LINT) run

.PHONY: lint-fix
lint-fix: golangci-lint ## Run golangci-lint linter and perform fixes
	$(GOLANGCI_LINT) run --fix

.PHONY: deploy
deploy: init-kind init-metrics-server init-redis local-build local-push manifests init-qscaler

.PHONY: init-metrics-server
init-metrics-server:
	sh ./hack/init-metrics-srever.sh


.PHONY: clean
clean:
	kind delete cluster --name qscaler
	docker stop kind-registry && docker rm kind-registry

.PHONY: restart
restart: local-build
	docker push localhost:5001/qscaler:latest
	kubectl rollout restart deployment qscaler

##@ Dependencies

## Location to install dependencies to
LOCALBIN ?= $(shell pwd)/bin
$(LOCALBIN):
	mkdir -p $(LOCALBIN)

## Tool Binaries
KUBECTL ?= kubectl
CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
GOLANGCI_LINT = $(LOCALBIN)/golangci-lint
ENVTEST ?= $(LOCALBIN)/setup-envtest

## Tool Versions
CONTROLLER_TOOLS_VERSION ?= v0.16.4
GOLANGCI_LINT_VERSION ?= v1.61.0
ENVTEST_VERSION ?= release-0.19

.PHONY: controller-gen
controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
$(CONTROLLER_GEN): $(LOCALBIN)
	$(call go-install-tool,$(CONTROLLER_GEN),sigs.k8s.io/controller-tools/cmd/controller-gen,$(CONTROLLER_TOOLS_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))

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

.PHONY: helm
helm: manifests
	helm lint ./helm
	helm template ./helm --debug > _lint.yaml

mocks:
	mockery --all --output ./internal/mocks


.PHONY: test
test: envtest
	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) --bin-dir $(LOCALBIN) -p path)" go test -short ./internal/...

# 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