Remove operator-sdk dependency

list of changes:
1. Replaced operator-sdk command to generate crds with controller-gen
   cmd to align with go1.20

Signed-off-by: Vinayakswami Hariharmath <[email protected]>

Makefile

@@ -17,6 +17,13 @@ DEV_IMAGE ?= noobaa/noobaa-operator-dev:$(VERSION)
 REPO ?= github.com/noobaa/noobaa-operator
 CATALOG_IMAGE ?= noobaa/noobaa-operator-catalog:$(VERSION)
 BUNDLE_IMAGE ?= noobaa/noobaa-operator-bundle:$(VERSION)
+# Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
+ifeq (,$(shell go env GOBIN))
+GOBIN=$(shell go env GOPATH)/bin
+else
+GOBIN=$(shell go env GOBIN)
+endif
+CONTROLLER_GEN_VERSION=v0.9.2
 
 GO_LINUX ?= GOOS=linux GOARCH=amd64
 GOHOSTOS ?= $(shell go env GOHOSTOS)
@@ -113,9 +120,9 @@ pkg/bundle/deploy.go: pkg/bundler/bundler.go version/version.go $(shell find dep
 	mkdir -p pkg/bundle
 	go run pkg/bundler/bundler.go deploy/ pkg/bundle/deploy.go
 
-gen-api: $(OPERATOR_SDK) gen
-	$(TIME) $(OPERATOR_SDK) generate k8s
-	$(TIME) $(OPERATOR_SDK) generate crds --crd-version v1
+gen-api: controller-gen gen
+	$(TIME) $(CONTROLLER_GEN) crd:generateEmbeddedObjectMeta=true paths=./pkg/apis/... output:crd:artifacts:config=deploy/crds/
+
 	@echo "✅ gen-api"
 .PHONY: gen-api
 
@@ -265,3 +272,17 @@ test-validations:
 	ginkgo -v pkg/validations
 	@echo "✅ test-validations"
 .PHONY: test-validations
+
+# find or download controller-gen if necessary
+controller-gen:
+ifneq ($(CONTROLLER_GEN_VERSION), $(shell controller-gen --version | awk -F ":" '{print $2}'))
+	@{ \
+	echo "Installing controller-gen@$(CONTROLLER_GEN_VERSION)" ;\
+	set -e ;\
+	go install -mod=readonly sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_GEN_VERSION) ;\
+	echo "Installed controller-gen@$(CONTROLLER_GEN_VERSION)" ;\
+	}
+CONTROLLER_GEN=$(GOBIN)/controller-gen
+else
+CONTROLLER_GEN=$(shell which controller-gen)
+endif

go.mod

@@ -1,6 +1,6 @@
 module github.com/noobaa/noobaa-operator/v5
 
-go 1.19
+go 1.20
 
 require (
 	cloud.google.com/go/storage v1.30.1