bootstap new apprepository-controller with files auto-generated by ku…

…bebuilder (#4731)

* bootstap new apprepository-controller with files auto-generated by kubebuilder

* a little more bootstrap...

* minor

* Antonio's suggestions

* minor fixes

* minor fixes

cmd/apprepository-controller-new/.dockerignore

@@ -0,0 +1,4 @@
+# More info: https://docs.docker.com/engine/reference/builder/#dockerignore-file
+# Ignore build and test binaries.
+bin/
+testbin/

cmd/apprepository-controller-new/.gitignore

@@ -0,0 +1,26 @@
+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+bin
+testbin/*
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Kubernetes Generated files - skip generated files, except for vendored files
+
+!vendor/**/zz_generated.*
+
+# editor and IDE paraphernalia
+.idea
+*.swp
+*.swo
+*~
+.vscode

cmd/apprepository-controller-new/Dockerfile

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+# Build the manager binary
+FROM bitnami/golang:1.18.2 as builder
+
+WORKDIR /workspace
+# Copy the Go Modules manifests
+COPY go.mod go.mod
+COPY go.sum go.sum
+# cache deps before building and copying source so that we don't need to re-download as much
+# and so that source changes don't invalidate our downloaded layer
+RUN go mod download
+
+# Copy the go source
+COPY main.go main.go
+COPY api/ api/
+COPY controllers/ controllers/
+
+# Build
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
+
+# TODO (gfichtenholt) @antgamdia asked
+# Don't know whether or not we should this img from google or just FROM scratch 
+# as we are doing in the rest of Dockerfiles. I'd rather go with the latter unless 
+# there is any reason to use the google one.
+
+# Use distroless as minimal base image to package the manager binary
+# Refer to https://github.com/GoogleContainerTools/distroless for more details
+FROM gcr.io/distroless/static:nonroot
+WORKDIR /
+COPY --from=builder /workspace/manager .
+USER 65532:65532
+
+ENTRYPOINT ["/manager"]

cmd/apprepository-controller-new/Makefile

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+
+# Image URL to use all building/pushing image targets
+IMG ?= controller:latest
+# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
+ENVTEST_K8S_VERSION = 1.23
+
+# 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.
+# This is a requirement for 'setup-envtest.sh' in the test target.
+# 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: all
+all: build
+
+##@ General
+
+# The help target prints out all targets with their descriptions organized
+# beneath their categories. The categories are represented by '##@' and the
+# target descriptions by '##'. The awk commands is responsible for reading the
+# entire set of makefiles included in this invocation, looking for lines of the
+# file as xyz: ## something, and then pretty-format the target and help. Then,
+# if there's a line with ##@ something, that gets pretty-printed as a category.
+# More info on the usage of ANSI control characters for terminal formatting:
+# https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_parameters
+# More info on the awk command:
+# http://linuxcommand.org/lc3_adv_awk.php
+
+.PHONY: help
+help: ## Display this help.
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+##@ Development
+
+.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
+
+.PHONY: generate
+generate: controller-gen ## Generate code containing DeepCopy, DeepCopyInto, and DeepCopyObject method implementations.
+	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
+
+.PHONY: fmt
+fmt: ## Run go fmt against code.
+	go fmt ./...
+
+.PHONY: vet
+vet: ## Run go vet against code.
+	go vet ./...
+
+.PHONY: test
+test: manifests generate fmt vet envtest ## Run tests.
+	KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" go test ./... -coverprofile cover.out
+
+##@ Build
+
+.PHONY: build
+build: generate fmt vet ## Build manager binary.
+	go build -o bin/manager main.go
+
+.PHONY: run
+run: manifests generate fmt vet ## Run a controller from your host.
+	go run ./main.go
+
+.PHONY: docker-build
+docker-build: test ## Build docker image with the manager.
+	docker build -t ${IMG} .
+
+.PHONY: docker-push
+docker-push: ## Push docker image with the manager.
+	docker push ${IMG}
+
+##@ Deployment
+
+ifndef ignore-not-found
+  ignore-not-found = false
+endif
+
+.PHONY: install
+install: manifests kustomize ## Install CRDs into the K8s cluster specified in ~/.kube/config.
+	$(KUSTOMIZE) build config/crd | kubectl apply -f -
+
+.PHONY: uninstall
+uninstall: manifests kustomize ## Uninstall CRDs from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/crd | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+
+.PHONY: deploy
+deploy: manifests kustomize ## Deploy controller to the K8s cluster specified in ~/.kube/config.
+	cd config/manager && $(KUSTOMIZE) edit set image controller=${IMG}
+	$(KUSTOMIZE) build config/default | kubectl apply -f -
+
+.PHONY: undeploy
+undeploy: ## Undeploy controller from the K8s cluster specified in ~/.kube/config. Call with ignore-not-found=true to ignore resource not found errors during deletion.
+	$(KUSTOMIZE) build config/default | kubectl delete --ignore-not-found=$(ignore-not-found) -f -
+
+##@ Build Dependencies
+
+## Location to install dependencies to
+LOCALBIN ?= $(shell pwd)/bin
+$(LOCALBIN):
+	mkdir -p $(LOCALBIN)
+
+## Tool Binaries
+KUSTOMIZE ?= $(LOCALBIN)/kustomize
+CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
+ENVTEST ?= $(LOCALBIN)/setup-envtest
+
+## Tool Versions
+KUSTOMIZE_VERSION ?= v3.8.7
+CONTROLLER_TOOLS_VERSION ?= v0.8.0
+
+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)
+	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): $(LOCALBIN)
+	GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-tools/cmd/controller-gen@$(CONTROLLER_TOOLS_VERSION)
+
+.PHONY: envtest
+envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
+$(ENVTEST): $(LOCALBIN)
+	GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest

cmd/apprepository-controller-new/PROJECT

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+domain: kubeapps.com
+layout:
+- go.kubebuilder.io/v3
+projectName: apprepository-controller-new
+repo: github.com/vmware-tanzu/kubeapps
+resources:
+- api:
+    crdVersion: v1
+    namespaced: true
+  controller: true
+  domain: kubeapps.com
+  kind: AppRepository
+  path: github.com/vmware-tanzu/kubeapps/api/v1alpha2
+  version: v1alpha2
+version: "3"

cmd/apprepository-controller-new/README.md

@@ -0,0 +1,94 @@
+# apprepository-controller-new
+// TODO(user): Add simple overview of use/purpose
+
+## Description
+// TODO(user): An in-depth paragraph about your project and overview of use
+
+## Getting Started
+You’ll need a Kubernetes cluster to run against. You can use [KIND](https://sigs.k8s.io/kind) to get a local cluster for testing, or run against a remote cluster.
+**Note:** Your controller will automatically use the current context in your kubeconfig file (i.e. whatever cluster `kubectl cluster-info` shows).
+
+### Running on the cluster
+1. Install Instances of Custom Resources:
+
+```sh
+kubectl apply -f config/samples/
+```
+
+2. Build and push your image to the location specified by `IMG`:
+
+```sh
+make docker-build docker-push IMG=<some-registry>/apprepository-controller-new:tag
+```
+
+3. Deploy the controller to the cluster with the image specified by `IMG`:
+
+```sh
+make deploy IMG=<some-registry>/apprepository-controller-new:tag
+```
+
+### Uninstall CRDs
+To delete the CRDs from the cluster:
+
+```sh
+make uninstall
+```
+
+### Undeploy controller
+UnDeploy the controller to the cluster:
+
+```sh
+make undeploy
+```
+
+## Contributing
+// TODO(user): Add detailed information on how you would like others to contribute to this project
+
+### How it works
+This project aims to follow the Kubernetes [Operator pattern](https://kubernetes.io/docs/concepts/extend-kubernetes/operator/)
+
+It uses [Controllers](https://kubernetes.io/docs/concepts/architecture/controller/) 
+which provides a reconcile function responsible for synchronizing resources untile the desired state is reached on the cluster 
+
+### Test It Out
+1. Install the CRDs into the cluster:
+
+```sh
+make install
+```
+
+2. Run your controller (this will run in the foreground, so switch to a new terminal if you want to leave it running):
+
+```sh
+make run
+```
+
+**NOTE:** You can also run this in one step by running: `make install run`
+
+### Modifying the API definitions
+If you are editing the API definitions, generate the manifests such as CRs or CRDs using:
+
+```sh
+make manifests
+```
+
+**NOTE:** Run `make --help` for more information on all potential `make` targets
+
+More information can be found via the [Kubebuilder Documentation](https://book.kubebuilder.io/introduction.html)
+
+## License
+
+Copyright 2022.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+

cmd/apprepository-controller-new/api/v1alpha2/apprepository_types.go

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+// Copyright 2022 the Kubeapps contributors.
+// SPDX-License-Identifier: Apache-2.0
+
+package v1alpha2
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
+// NOTE: json tags are required.  Any new fields you add must have json tags for the fields to be serialized.
+
+// AppRepositorySpec defines the desired state of AppRepository
+type AppRepositorySpec struct {
+	// INSERT ADDITIONAL SPEC FIELDS - desired state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+
+	// Foo is an example field of AppRepository. Edit apprepository_types.go to remove/update
+	Foo string `json:"foo,omitempty"`
+}
+
+// AppRepositoryStatus defines the observed state of AppRepository
+type AppRepositoryStatus struct {
+	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
+	// Important: Run "make" to regenerate code after modifying this file
+}
+
+//+kubebuilder:object:root=true
+//+kubebuilder:subresource:status
+
+// AppRepository is the Schema for the apprepositories API
+type AppRepository struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   AppRepositorySpec   `json:"spec,omitempty"`
+	Status AppRepositoryStatus `json:"status,omitempty"`
+}
+
+//+kubebuilder:object:root=true
+
+// AppRepositoryList contains a list of AppRepository
+type AppRepositoryList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []AppRepository `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&AppRepository{}, &AppRepositoryList{})
+}

cmd/apprepository-controller-new/api/v1alpha2/groupversion_info.go

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+// Copyright 2022 the Kubeapps contributors.
+// SPDX-License-Identifier: Apache-2.0
+
+// Package v1alpha2 contains API Schema definitions for the  v1alpha2 API group
+//+kubebuilder:object:generate=true
+//+groupName=kubeapps.com
+package v1alpha2
+
+import (
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"sigs.k8s.io/controller-runtime/pkg/scheme"
+)
+
+var (
+	// GroupVersion is group version used to register these objects
+	GroupVersion = schema.GroupVersion{Group: "kubeapps.com", Version: "v1alpha2"}
+
+	// SchemeBuilder is used to add go types to the GroupVersionKind scheme
+	SchemeBuilder = &scheme.Builder{GroupVersion: GroupVersion}
+
+	// AddToScheme adds the types in this group-version to the given scheme.
+	AddToScheme = SchemeBuilder.AddToScheme
+)