kubebuilder中的controller:latest是什么镜像
首先看一下kubebuilder自动生成的项目中的makefile：
1 # Current Operator version 2 VERSION ?= 0.0.1 3 # Default bundle image tag 4 BUNDLE_IMG ?= controller-bundle:$(VERSION) 5 # Options for 'bundle-build' 6 ifneq ($(origin CHANNELS), undefined) 7 BUNDLE_CHANNELS := --channels=$(CHANNELS) 8 endif 9 ifneq ($(origin DEFAULT_CHANNEL), undefined) 10 BUNDLE_DEFAULT_CHANNEL := --default-channel=$(DEFAULT_CHANNEL) 11 endif 12 BUNDLE_METADATA_OPTS ?= $(BUNDLE_CHANNELS) $(BUNDLE_DEFAULT_CHANNEL) 13 14 # Image URL to use all building/pushing image targets 15 IMG ?= controller:latest 16 # Produce CRDs that work back to Kubernetes 1.11 (no version conversion) 17 CRD_OPTIONS ?= "crd:trivialVersions=true" 18 19 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set) 20 ifeq (,$(shell go env GOBIN)) 21 GOBIN=$(shell go env GOPATH)/bin 22 else 23 GOBIN=$(shell go env GOBIN) 24 endif 25 26 27 setup: fmt vet docker-build 28 29 all: manager 30 31 # Run tests 32 ENVTEST_ASSETS_DIR = $(shell pwd)/testbin 33 test: generate fmt vet manifests 34 mkdir -p $(ENVTEST_ASSETS_DIR) 35 test -f $(ENVTEST_ASSETS_DIR)/setup-envtest.sh || curl -sSLo $(ENVTEST_ASSETS_DIR)/setup-envtest.sh https://raw.githubusercontent.com/kubernetes-sigs/controller-runtime/v0.6.3/hack/setup-envtest.sh 36 source $(ENVTEST_ASSETS_DIR)/setup-envtest.sh; fetch_envtest_tools $(ENVTEST_ASSETS_DIR); setup_envtest_env $(ENVTEST_ASSETS_DIR); go test ./... -coverprofile cover.out 37 38 # Build manager binary 39 manager: generate fmt vet 40 go build -o bin/manager main.go 41 42 # Run against the configured Kubernetes cluster in ~/.kube/config 43 run: generate fmt vet manifests 44 go run ./main.go 45 46 # Install CRDs into a cluster 47 install: manifests kustomize 48 $(KUSTOMIZE) build config/crd | kubectl apply -f - 49 50 # Uninstall CRDs from a cluster 51 uninstall: manifests kustomize 52 $(KUSTOMIZE) build config/crd | kubectl delete -f - 53 54 # Deploy controller in the configured Kubernetes cluster in ~/.kube/config 55 deploy: manifests kustomize 56 cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG} 57 $(KUSTOMIZE) build config/default | kubectl apply -f - 58 59 undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. 60 $(KUSTOMIZE) build config/default | kubectl delete -f - 61 62 # Generate manifests e.g. CRD, RBAC etc. 63 manifests: controller-gen 64 $(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases 65 66 # Run go fmt against code 67 fmt: 68 go fmt ./... 69 70 # Run go vet against code 71 vet: 72 go vet ./... 73 74 # Generate code 75 generate: controller-gen 76 $(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..." 77 78 # Build the docker image 79 docker-build: 80 docker build . -t ${IMG} 81 82 # Push the docker image 83 docker-push: 84 docker push ${IMG} 85 86 # find or download controller-gen 87 # download controller-gen if necessary 88 controller-gen: 89 ifeq (, $(shell which controller-gen)) 90 @{ \ 91 set -e ;\ 92 CONTROLLER_GEN_TMP_DIR=$$(mktemp -d) ;\ 93 cd $$CONTROLLER_GEN_TMP_DIR ;\ 94 go mod init tmp ;\ 95 go get sigs.k8s.io/controller-tools/cmd/controller-gen@v0.3.0 ;\ 96 rm -rf $$CONTROLLER_GEN_TMP_DIR ;\ 97 } 98 CONTROLLER_GEN=$(GOBIN)/controller-gen 99 else 100 CONTROLLER_GEN=$(shell which controller-gen) 101 endif 102 103 kustomize: 104 ifeq (, $(shell which kustomize)) 105 @{ \ 106 set -e ;\ 107 KUSTOMIZE_GEN_TMP_DIR=$$(mktemp -d) ;\ 108 cd $$KUSTOMIZE_GEN_TMP_DIR ;\ 109 go mod init tmp ;\ 110 go get sigs.k8s.io/kustomize/kustomize/v3@v3.5.4 ;\ 111 rm -rf $$KUSTOMIZE_GEN_TMP_DIR ;\ 112 } 113 KUSTOMIZE=$(GOBIN)/kustomize 114 else 115 KUSTOMIZE=$(shell which kustomize) 116 endif 117 118 # Generate bundle manifests and metadata, then validate generated files. 119 .PHONY: bundle 120 bundle: manifests kustomize 121 operator-sdk generate kustomize manifests -q 122 cd config/manager && $(KUSTOMIZE) edit set image controller=$(IMG) 123 $(KUSTOMIZE) build config/manifests | operator-sdk generate bundle -q --overwrite --version $(VERSION) $(BUNDLE_METADATA_OPTS) 124 operator-sdk bundle validate ./bundle 125 126 # Build the bundle image. 127 .PHONY: bundle-build 128 bundle-build: 129 docker build -f bundle.Dockerfile -t $(BUNDLE_IMG) . 130 131 # 后面的就是自己实现 132 demo: 133 ifeq ($(clear),true) 134 kubectl delete -f config/samples/nacos.yaml 135 kubectl delete pod -l app=nacos --grace-period=0 --force 136 else 137 ifeq ($(type),cluster) 138 echo "cluster mode" 139 kubectl apply -f config/samples/nacos_cluster.yaml 140 else 141 echo "standalone mode" 142 kubectl apply -f config/samples/nacos.yaml 143 endif 144 endif 145 146 147 image_operator: docker-build docker-push
第15行中的 IMG ?= controller:latest 说明，如果没有为IMG赋值，则IMG会为controller:latest，
第56行中的 make deploy子命令中：cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}，说明把 nacos-operator/config/manager/manager.yaml 下的image:controller:latest中的controller替换成了设置的IMG。（这里我的项目名是nacos-operator）
比如项目部署时候运行命令：make deploy IMG=xxx:1.0
则该 manager.yaml 镜像就会被替换成 xxx:1.0:latest，这样就导致了错误，可以把manager.yaml 中的controller:latest中的 :latest 去掉就可以解决这个问题了。
manager.yaml文件内容：
