Bump go version to 1.18

Update setup for controller-gen and kustomize.

Signed-off-by: Ann Taraday <[email protected]>

Dockerfile

@@ -1,6 +1,6 @@
 ARG DOCKER_REGISTRY
 ARG ALPINE_VERSION=3.15
-FROM ${DOCKER_REGISTRY:+$DOCKER_REGISTRY/}golang:1.17-alpine${ALPINE_VERSION} as go-builder
+FROM ${DOCKER_REGISTRY:+$DOCKER_REGISTRY/}golang:1.18-alpine${ALPINE_VERSION} as go-builder
 
 ARG PROJECT_NAME=zookeeper-operator
 ARG REPO_PATH=github.com/pravega/$PROJECT_NAME

Makefile

@@ -76,37 +76,25 @@ fmt:
 vet:
 	go vet ./...
 
-# find or download controller-gen
-# download controller-gen if necessary
-controller-gen:
-ifeq (, $(shell which controller-gen))
-	@{ \
-	set -e ;\
-	CONTROLLER_GEN_TMP_DIR=$$(mktemp -d) ;\
-	cd $$CONTROLLER_GEN_TMP_DIR ;\
-	go mod init tmp ;\
-	go install sigs.k8s.io/controller-tools/cmd/[email protected] ;\
-	rm -rf $$CONTROLLER_GEN_TMP_DIR ;\
-	}
-CONTROLLER_GEN=$(GOBIN)/controller-gen
-else
-CONTROLLER_GEN=$(shell which controller-gen)
-endif
-
-kustomize:
-ifeq (, $(shell which kustomize))
-	@{ \
-	set -e ;\
-	KUSTOMIZE_GEN_TMP_DIR=$$(mktemp -d) ;\
-	cd $$KUSTOMIZE_GEN_TMP_DIR ;\
-	go mod init tmp ;\
-	go install sigs.k8s.io/kustomize/kustomize/[email protected] ;\
-	rm -rf $$KUSTOMIZE_GEN_TMP_DIR ;\
-	}
-KUSTOMIZE=$(GOBIN)/kustomize
-else
-KUSTOMIZE=$(shell which kustomize)
-endif
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
+## Tool Binaries
+KUSTOMIZE ?= $(LOCALBIN)/kustomize
+CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
+## Tool Versions
+KUSTOMIZE_VERSION ?= v3.5.4
+CONTROLLER_TOOLS_VERSION ?= v0.9.0
+KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
+.PHONY: kustomize
+kustomize: $(KUSTOMIZE) ## Download kustomize locally if necessary.
+$(KUSTOMIZE): $(LOCALBIN)
+	test -s $(LOCALBIN)/kustomize || { curl -s $(KUSTOMIZE_INSTALL_SCRIPT) | bash -s -- $(subst v,,$(KUSTOMIZE_VERSION)) $(LOCALBIN); }
+.PHONY: controller-gen
+controller-gen: $(CONTROLLER_GEN) ## Download controller-gen locally if necessary.
+$(CONTROLLER_GEN): $(LOCALBIN)
+	test -s $(LOCALBIN)/controller-gen || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
 
 all: generate check build
 

go.mod

@@ -1,6 +1,6 @@
 module github.com/pravega/zookeeper-operator
 
-go 1.17
+go 1.18
 
 require (
 	github.com/ghodss/yaml v1.0.0