✨ Initial scaffolding for operator

exp/operator/.gitignore

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+
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+bin
+
+# 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
+*~

exp/operator/Dockerfile

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+# syntax=docker/dockerfile:1.1-experimental
+
+# Copyright 2021 The Kubernetes Authors.
+#
+# 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.
+
+# Build the manager binary
+FROM golang:1.13 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 GO111MODULE=on go build -a -o manager main.go
+
+# 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 nonroot:nonroot
+
+ENTRYPOINT ["/manager"]

exp/operator/Makefile

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+# Copyright 2021 The Kubernetes Authors.
+#
+# 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.
+
+# Image URL to use all building/pushing image targets
+IMG ?= controller:latest
+# Produce CRDs that work back to Kubernetes 1.11 (no version conversion)
+CRD_OPTIONS ?= "crd:trivialVersions=true"
+
+# 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=$(shell go env GOBIN)
+endif
+
+all: manager
+
+# Run tests
+test: generate fmt vet manifests
+	go test ./... -coverprofile cover.out
+
+# Build manager binary
+manager: generate fmt vet
+	go build -o bin/manager main.go
+
+# Run against the configured Kubernetes cluster in ~/.kube/config
+run: generate fmt vet manifests
+	go run ./main.go
+
+# Install CRDs into a cluster
+install: manifests
+	kustomize build config/crd | kubectl apply -f -
+
+# Uninstall CRDs from a cluster
+uninstall: manifests
+	kustomize build config/crd | kubectl delete -f -
+
+# Deploy controller in the configured Kubernetes cluster in ~/.kube/config
+deploy: manifests
+	cd config/manager && kustomize edit set image controller=${IMG}
+	kustomize build config/default | kubectl apply -f -
+
+# Generate manifests e.g. CRD, RBAC etc.
+manifests: controller-gen
+	$(CONTROLLER_GEN) $(CRD_OPTIONS) rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=config/crd/bases
+
+# Run go fmt against code
+fmt:
+	go fmt ./...
+
+# Run go vet against code
+vet:
+	go vet ./...
+
+# Generate code
+generate: controller-gen
+	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
+
+# Build the docker image
+docker-build: test
+	docker build . -t ${IMG}
+
+# Push the docker image
+docker-push:
+	docker push ${IMG}
+
+# 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 get 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

exp/operator/PROJECT

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+domain: cluster.x-k8s.io
+repo: sigs.k8s.io/cluster-api
+resources:
+- group: operator
+  kind: CoreProvider
+  version: v1alpha4
+- group: operator
+  kind: BootstrapProvider
+  version: v1alpha4
+- group: operator
+  kind: ControlPlaneProvider
+  version: v1alpha4
+- group: operator
+  kind: InfrastructureProvider
+  version: v1alpha4
+version: "2"

exp/operator/api/v1alpha4/bootstrapprovider_types.go

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+/*
+Copyright 2021 The Kubernetes Authors.
+
+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.
+*/
+
+package v1alpha4
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// BootstrapProviderSpec defines the desired state of BootstrapProvider
+type BootstrapProviderSpec struct {
+	ProviderSpec `json:",inline"`
+}
+
+// BootstrapProviderStatus defines the observed state of BootstrapProvider
+type BootstrapProviderStatus struct {
+	ProviderStatus `json:",inline"`
+}
+
+// +kubebuilder:object:root=true
+
+// BootstrapProvider is the Schema for the bootstrapproviders API
+type BootstrapProvider struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   BootstrapProviderSpec   `json:"spec,omitempty"`
+	Status BootstrapProviderStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// BootstrapProviderList contains a list of BootstrapProvider
+type BootstrapProviderList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []BootstrapProvider `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&BootstrapProvider{}, &BootstrapProviderList{})
+}

exp/operator/api/v1alpha4/controlplaneprovider_types.go

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+/*
+Copyright 2021 The Kubernetes Authors.
+
+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.
+*/
+
+package v1alpha4
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// ControlPlaneProviderSpec defines the desired state of ControlPlaneProvider
+type ControlPlaneProviderSpec struct {
+	ProviderSpec `json:",inline"`
+}
+
+// ControlPlaneProviderStatus defines the observed state of ControlPlaneProvider
+type ControlPlaneProviderStatus struct {
+	ProviderStatus `json:",inline"`
+}
+
+// +kubebuilder:object:root=true
+
+// ControlPlaneProvider is the Schema for the controlplaneproviders API
+type ControlPlaneProvider struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   ControlPlaneProviderSpec   `json:"spec,omitempty"`
+	Status ControlPlaneProviderStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// ControlPlaneProviderList contains a list of ControlPlaneProvider
+type ControlPlaneProviderList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []ControlPlaneProvider `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&ControlPlaneProvider{}, &ControlPlaneProviderList{})
+}

exp/operator/api/v1alpha4/coreprovider_types.go

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+/*
+Copyright 2021 The Kubernetes Authors.
+
+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.
+*/
+
+package v1alpha4
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// CoreProviderSpec defines the desired state of CoreProvider
+type CoreProviderSpec struct {
+	ProviderSpec `json:",inline"`
+}
+
+// CoreProviderStatus defines the observed state of CoreProvider
+type CoreProviderStatus struct {
+	ProviderStatus `json:",inline"`
+}
+
+// +kubebuilder:object:root=true
+
+// CoreProvider is the Schema for the coreproviders API
+type CoreProvider struct {
+	metav1.TypeMeta   `json:",inline"`
+	metav1.ObjectMeta `json:"metadata,omitempty"`
+
+	Spec   CoreProviderSpec   `json:"spec,omitempty"`
+	Status CoreProviderStatus `json:"status,omitempty"`
+}
+
+// +kubebuilder:object:root=true
+
+// CoreProviderList contains a list of CoreProvider
+type CoreProviderList struct {
+	metav1.TypeMeta `json:",inline"`
+	metav1.ListMeta `json:"metadata,omitempty"`
+	Items           []CoreProvider `json:"items"`
+}
+
+func init() {
+	SchemeBuilder.Register(&CoreProvider{}, &CoreProviderList{})
+}

exp/operator/api/v1alpha4/groupversion_info.go

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+/*
+Copyright 2021 The Kubernetes Authors.
+
+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.
+*/
+
+// Package v1alpha4 contains API Schema definitions for the operator v1alpha4 API group
+// +kubebuilder:object:generate=true
+// +groupName=operator.cluster.x-k8s.io
+package v1alpha4
+
+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: "operator.cluster.x-k8s.io", Version: "v1alpha4"}
+
+	// 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
+)