Revert "Merge branch 'refactor_release' of https://github.com/openmcp-project/metrics-operator into refactor_release"

This reverts commit 90db8ba, reversing
changes made to 0b3e72a.

Author: maximiliantech

Makefile

@@ -227,7 +227,7 @@ build-docker-binary: manifests generate fmt vet ## Build manager binary for Dock
 	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o bin/manager-linux.amd64 cmd/main.go
 
 .PHONY: docker-build
-docker-build: test build-docker-binary ## Build docker image with the manager.
+docker-build: build-docker-binary test ## Build docker image with the manager.
 	$(CONTAINER_TOOL) build -t ${IMG} .
 
 .PHONY: docker-push
@@ -237,14 +237,22 @@ docker-push: ## Push docker image with the manager.
 # 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/
-# - be using containerd image store with docker. More Info: https://docs.docker.com/engine/storage/containerd/
 # - have enable BuildKit, More info: https://docs.docker.com/develop/develop-images/build_enhancements/
-
-PLATFORMS ?= linux/arm64,linux/amd64
-
+# - 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
 .PHONY: docker-buildx
-docker-buildx: test
-	$(CONTAINER_TOOL) buildx build --platform=$(PLATFORMS) --tag $(IMG) --load -f Dockerfile .
+docker-buildx: ## Build and tag docker image for each platform locally using --load
+	sed '1 s/^FROM/FROM --platform=$${BUILDPLATFORM}/' Dockerfile > Dockerfile.cross
+	$(CONTAINER_TOOL) buildx create --name project-v3-builder || true
+	$(CONTAINER_TOOL) buildx use project-v3-builder
+	@for platform in $(PLATFORMS); do \
+		tag="$(IMG)-$$(echo $$platform | tr / -)"; \
+		echo "Building $$tag for $$platform"; \
+		$(CONTAINER_TOOL) buildx build --platform=$$platform --tag $$tag --load -f Dockerfile.cross .; \
+	done
+	$(CONTAINER_TOOL) buildx rm project-v3-builder
+	rm Dockerfile.cross
 
 #----------------------------------------------------------------------------------------------
 ##@ Helm 
@@ -367,36 +375,14 @@ dev-apply-metric-dynatrace-prod: ## Apply metric using Dynatrace production exam
 
 #----------------------------------------------------------------------------------------------
 ##@ Helm
-
-HELM_VERSION ?= v3.18.0
-OCI_REGISTRY ?= ghcr.io/sap/charts
-
-$(HELM): $(LOCALBIN)
-	@if test -x $(LOCALBIN)/helm && ! $(LOCALBIN)/helm version --short | grep -q $(HELM_VERSION); then \
-		echo "$(LOCALBIN)/helm version is not expected $(HELM_VERSION). Removing it before installing."; \
-		rm -rf $(LOCALBIN)/helm; \
-	fi
-	test -s $(LOCALBIN)/helm || (curl -sSL https://get.helm.sh/helm-$(HELM_VERSION)-$(shell uname | tr '[:upper:]' '[:lower:]')-amd64.tar.gz | tar xz -C /tmp && \
-	mv /tmp/$(shell uname | tr '[:upper:]' '[:lower:]')-amd64/helm $(LOCALBIN)/helm && \
-	chmod +x $(LOCALBIN)/helm && \
-	rm -rf /tmp/$(shell uname | tr '[:upper:]' '[:lower:]')-amd64)
-
-.PHONY: helm-package
-helm-package: $(HELM) helm-chart
-	$(LOCALBIN)/helm package charts/$(PROJECT_FULL_NAME)/ -d ./ --version $(shell cat VERSION) 
-
-.PHONY: helm-push
-helm-push: $(HELM)
-	$(LOCALBIN)/helm push $(PROJECT_FULL_NAME)-$(shell cat VERSION).tgz oci://$(OCI_REGISTRY)
-
 .PHONY: helm-chart
 helm-chart: ## Generate Helm chart files from templates.
 	OPERATOR_VERSION=$(shell cat VERSION) envsubst < charts/$(PROJECT_FULL_NAME)/Chart.yaml.tpl > charts/$(PROJECT_FULL_NAME)/Chart.yaml
 	OPERATOR_VERSION=$(shell cat VERSION) envsubst < charts/$(PROJECT_FULL_NAME)/values.yaml.tpl > charts/$(PROJECT_FULL_NAME)/values.yaml
 
 .PHONY: helm-install-local
-helm-install-local: $(HELM) ## Install the Helm chart locally using the Docker image
-	$(LOCALBIN)/helm upgrade --install $(PROJECT_FULL_NAME) charts/$(PROJECT_FULL_NAME)/ --set image.repository=$(IMG_BASE) --set image.tag=$(IMG_VERSION) --set image.pullPolicy=Never
+helm-install-local: ## Install the Helm chart locally using the Docker image
+	helm upgrade --install $(PROJECT_FULL_NAME) charts/$(PROJECT_FULL_NAME)/ --set image.repository=$(IMG_BASE) --set image.tag=$(IMG_VERSION) --set image.pullPolicy=Never
 	$(KIND) load docker-image ${IMG} --name=$(PROJECT_FULL_NAME)-dev
 
 #----------------------------------------------------------------------------------------------