feat: migrate operator code base to support new operator-sdk version

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.21 as builder
+FROM golang:1.21 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 
@@ -11,29 +11,32 @@ COPY go.sum go.sum
 # and so that source changes don't invalidate our downloaded layer
 RUN go mod download
 
-# Copy the go source
+# Copy must-gather scripts
 COPY must-gather/ must-gather/
-COPY cmd/ cmd/
-COPY pkg/ pkg/
 
+# Copy the go source
+COPY cmd/main.go cmd/main.go
+COPY api/ api/
+COPY pkg/ pkg/
+COPY internal/ internal/
 
 # Build
 # the GOARCH has not a default value to allow the binary be built according to the host where the command
 # was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
 # the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
 # by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
 RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} \
-  go build -a -o manager ./cmd/manager/...
+  go build -a -o manager cmd/main.go
 
 FROM quay.io/openshift/origin-cli:4.13 AS origincli
 
 FROM registry.access.redhat.com/ubi9-minimal:9.2
 RUN INSTALL_PKGS=" \
-    rsync \
-	tar \
-    " && \
-	microdnf install -y $INSTALL_PKGS && \
-	microdnf clean all
+  rsync \
+  tar \
+  " && \
+  microdnf install -y $INSTALL_PKGS && \
+  microdnf clean all
 WORKDIR /
 COPY --from=builder /workspace/manager .
 COPY --from=builder /workspace/must-gather/* /usr/bin/

Makefile

@@ -89,11 +89,11 @@ help: ## Display this help.
 
 .PHONY: manifests
 manifests: controller-gen ## Generate WebhookConfiguration, ClusterRole and CustomResourceDefinition objects.
-	$(CONTROLLER_GEN) rbac:roleName=manager-role crd webhook paths="./pkg/..." output:crd:artifacts:config=config/crd/bases
+	$(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="./pkg/..."
+	$(CONTROLLER_GEN) object:headerFile="hack/boilerplate.go.txt" paths="./..."
 
 .PHONY: fmt
 fmt: shfmt ## Run go fmt against code.
@@ -153,14 +153,14 @@ cluster-down: ## delete the local development cluster
 
 .PHONY: build
 build: manifests generate fmt vet ## Build manager binary.
-	go build -o bin/manager ./cmd/manager/...
+	go build -o bin/manager ./cmd/...
 
 OPENSHIFT ?= true
 RUN_ARGS ?=
 
 .PHONY: run
 run: install fmt vet ## Run a controller from your host against openshift cluster
-	go run ./cmd/manager/... \
+	go run ./cmd/... \
 		--kepler.image=$(KEPLER_IMG) \
 		--zap-devel --zap-log-level=8 \
 		--openshift=$(OPENSHIFT) \

PROJECT

@@ -1,6 +1,10 @@
+# Code generated by tool. DO NOT EDIT.
+# This file is used to track the info used to scaffold your project
+# and allow the plugins properly work.
+# More info: https://book.kubebuilder.io/reference/project-config.html
 domain: sustainable.computing.io
 layout:
-- go.kubebuilder.io/v3
+- go.kubebuilder.io/v4
 plugins:
   manifests.sdk.operatorframework.io/v2: {}
   scorecard.sdk.operatorframework.io/v2: {}

pkg/api/v1alpha1/groupversion_info.go → api/v1alpha1/groupversion_info.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2022.
+Copyright 2024.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

pkg/api/v1alpha1/kepler_internal_types.go → api/v1alpha1/kepler_internal_types.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023.
+Copyright 2024.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

pkg/api/v1alpha1/kepler_types.go → api/v1alpha1/kepler_types.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2022.
+Copyright 2024.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

pkg/api/v1alpha1/kepler_webhook.go → api/v1alpha1/kepler_webhook.go

@@ -1,5 +1,5 @@
 /*
-Copyright 2023.
+Copyright 2024.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

bundle.Dockerfile

@@ -7,9 +7,9 @@ LABEL operators.operatorframework.io.bundle.metadata.v1=metadata/
 LABEL operators.operatorframework.io.bundle.package.v1=kepler-operator
 LABEL operators.operatorframework.io.bundle.channels.v1=alpha
 LABEL operators.operatorframework.io.bundle.channel.default.v1=alpha
-LABEL operators.operatorframework.io.metrics.builder=operator-sdk-v1.27.0
+LABEL operators.operatorframework.io.metrics.builder=operator-sdk-v1.35.0
 LABEL operators.operatorframework.io.metrics.mediatype.v1=metrics+v1
-LABEL operators.operatorframework.io.metrics.project_layout=go.kubebuilder.io/v3
+LABEL operators.operatorframework.io.metrics.project_layout=go.kubebuilder.io/v4
 
 # Labels for testing.
 LABEL operators.operatorframework.io.test.mediatype.v1=scorecard+v1

bundle/manifests/kepler-operator.clusterserviceversion.yaml

@@ -30,12 +30,12 @@ metadata:
     containerImage: quay.io/sustainable_computing_io/kepler-operator:0.13.0
     createdAt: "2024-07-11T07:04:57Z"
     description: 'Deploys and Manages Kepler on Kubernetes '
-    operators.operatorframework.io/builder: operator-sdk-v1.27.0
+    operators.operatorframework.io/builder: operator-sdk-v1.35.0
     operators.operatorframework.io/internal-objects: |-
       [
         "keplerinternals.kepler.system.sustainable.computing.io"
       ]
-    operators.operatorframework.io/project_layout: go.kubebuilder.io/v3
+    operators.operatorframework.io/project_layout: go.kubebuilder.io/v4
     repository: https://github.com/sustainable-computing-io/kepler-operator
     support: https://github.com/sustainable-computing-io/kepler-operator/issues
   name: kepler-operator.v0.13.0
@@ -302,10 +302,6 @@ spec:
                   capabilities:
                     drop:
                     - ALL
-                volumeMounts:
-                - mountPath: /tmp/k8s-webhook-server/serving-certs
-                  name: cert
-                  readOnly: true
               securityContext:
                 runAsNonRoot: true
               serviceAccountName: kepler-operator-controller-manager

bundle/manifests/kepler.system.sustainable.computing.io_keplerinternals.yaml

@@ -2,7 +2,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.1
+    controller-gen.kubebuilder.io/version: v0.13.0
   creationTimestamp: null
   name: keplerinternals.kepler.system.sustainable.computing.io
 spec:

bundle/manifests/kepler.system.sustainable.computing.io_keplers.yaml

@@ -2,7 +2,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.1
+    controller-gen.kubebuilder.io/version: v0.13.0
   creationTimestamp: null
   name: keplers.kepler.system.sustainable.computing.io
 spec:

bundle/metadata/annotations.yaml

@@ -6,9 +6,9 @@ annotations:
   operators.operatorframework.io.bundle.package.v1: kepler-operator
   operators.operatorframework.io.bundle.channels.v1: alpha
   operators.operatorframework.io.bundle.channel.default.v1: alpha
-  operators.operatorframework.io.metrics.builder: operator-sdk-v1.27.0
+  operators.operatorframework.io.metrics.builder: operator-sdk-v1.35.0
   operators.operatorframework.io.metrics.mediatype.v1: metrics+v1
-  operators.operatorframework.io.metrics.project_layout: go.kubebuilder.io/v3
+  operators.operatorframework.io.metrics.project_layout: go.kubebuilder.io/v4
 
   # Annotations for testing.
   operators.operatorframework.io.test.mediatype.v1: scorecard+v1

bundle/tests/scorecard/config.yaml

@@ -8,7 +8,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - basic-check-spec
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: basic
       test: basic-check-spec-test
@@ -18,7 +18,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - olm-bundle-validation
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: olm
       test: olm-bundle-validation-test
@@ -28,7 +28,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - olm-crds-have-validation
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: olm
       test: olm-crds-have-validation-test
@@ -38,7 +38,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - olm-crds-have-resources
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: olm
       test: olm-crds-have-resources-test
@@ -48,7 +48,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - olm-spec-descriptors
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: olm
       test: olm-spec-descriptors-test
@@ -58,7 +58,7 @@ stages:
   - entrypoint:
     - scorecard-test
     - olm-status-descriptors
-    image: quay.io/operator-framework/scorecard-test:v1.25.1
+    image: quay.io/operator-framework/scorecard-test:v1.35.0
     labels:
       suite: olm
       test: olm-status-descriptors-test

cmd/manager/main.go → cmd/main.go

@@ -39,11 +39,11 @@ import (
 
 	securityv1 "github.com/openshift/api/security/v1"
 
-	keplersystemv1alpha1 "github.com/sustainable.computing.io/kepler-operator/pkg/api/v1alpha1"
+	keplersystemv1alpha1 "github.com/sustainable.computing.io/kepler-operator/api/v1alpha1"
+	"github.com/sustainable.computing.io/kepler-operator/internal/controller"
 	"github.com/sustainable.computing.io/kepler-operator/pkg/components/estimator"
 	"github.com/sustainable.computing.io/kepler-operator/pkg/components/exporter"
 	"github.com/sustainable.computing.io/kepler-operator/pkg/components/modelserver"
-	"github.com/sustainable.computing.io/kepler-operator/pkg/controllers"
 	"github.com/sustainable.computing.io/kepler-operator/pkg/utils/k8s"
 	//+kubebuilder:scaffold:imports
 )
@@ -87,7 +87,7 @@ func main() {
 		"Enable leader election for controller manager. "+
 			"Enabling this will ensure there is only one active controller manager.")
 
-	flag.StringVar(&controllers.KeplerDeploymentNS, "deployment-namespace", controllers.KeplerDeploymentNS,
+	flag.StringVar(&controller.KeplerDeploymentNS, "deployment-namespace", controller.KeplerDeploymentNS,
 		"Namespace where kepler and its components are deployed.")
 
 	flag.CommandLine.Var(flag.Value(&additionalNamespaces), "watch-namespaces",
@@ -98,10 +98,10 @@ func main() {
 
 	// NOTE: RELATED_IMAGE_KEPLER can be set as env or flag, flag takes precedence over env
 	keplerImage := os.Getenv("RELATED_IMAGE_KEPLER")
-	flag.StringVar(&controllers.Config.Image, "kepler.image", keplerImage, "kepler image")
+	flag.StringVar(&controller.Config.Image, "kepler.image", keplerImage, "kepler image")
 
-	flag.StringVar(&controllers.InternalConfig.ModelServerImage, "estimator.image", estimator.StableImage, "kepler estimator image")
-	flag.StringVar(&controllers.InternalConfig.EstimatorImage, "model-server.image", modelserver.StableImage, "kepler model server image")
+	flag.StringVar(&controller.InternalConfig.ModelServerImage, "estimator.image", estimator.StableImage, "kepler estimator image")
+	flag.StringVar(&controller.InternalConfig.EstimatorImage, "model-server.image", modelserver.StableImage, "kepler model server image")
 
 	opts := zap.Options{
 		Development: true,
@@ -112,7 +112,7 @@ func main() {
 	ctrl.SetLogger(zap.New(zap.UseFlagOptions(&opts)))
 
 	if openshift {
-		controllers.Config.Cluster = k8s.OpenShift
+		controller.Config.Cluster = k8s.OpenShift
 	}
 
 	mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
@@ -123,7 +123,7 @@ func main() {
 		// TODO: add new introduced namespace from KeplerInternal.Spec.Deployment.Namespace
 		NewCache: func(config *rest.Config, opts cache.Options) (cache.Cache, error) {
 			cacheNs := map[string]cache.Config{
-				controllers.KeplerDeploymentNS: {},
+				controller.KeplerDeploymentNS: {},
 			}
 			if openshift {
 				cacheNs[exporter.DashboardNs] = cache.Config{}
@@ -156,14 +156,14 @@ func main() {
 		os.Exit(1)
 	}
 
-	if err = (&controllers.KeplerReconciler{
+	if err = (&controller.KeplerReconciler{
 		Client: mgr.GetClient(),
 		Scheme: mgr.GetScheme(),
 	}).SetupWithManager(mgr); err != nil {
 		setupLog.Error(err, "unable to create controller", "controller", "kepler")
 		os.Exit(1)
 	}
-	if err = (&controllers.KeplerInternalReconciler{
+	if err = (&controller.KeplerInternalReconciler{
 		Client: mgr.GetClient(),
 		Scheme: mgr.GetScheme(),
 	}).SetupWithManager(mgr); err != nil {

config/certmanager/certificate.yaml

@@ -5,8 +5,8 @@ apiVersion: cert-manager.io/v1
 kind: Issuer
 metadata:
   labels:
-    app.kubernetes.io/name: issuer
-    app.kubernetes.io/instance: selfsigned-issuer
+    app.kubernetes.io/name: certificate
+    app.kubernetes.io/instance: serving-cert
     app.kubernetes.io/component: certificate
     app.kubernetes.io/created-by: kepler-operator
     app.kubernetes.io/part-of: kepler-operator
@@ -29,10 +29,10 @@ metadata:
   name: serving-cert  # this name should match the one appeared in kustomizeconfig.yaml
   namespace: system
 spec:
-  # $(SERVICE_NAME) and $(SERVICE_NAMESPACE) will be substituted by kustomize
+  # SERVICE_NAME and SERVICE_NAMESPACE will be substituted by kustomize
   dnsNames:
-  - $(SERVICE_NAME).$(SERVICE_NAMESPACE).svc
-  - $(SERVICE_NAME).$(SERVICE_NAMESPACE).svc.cluster.local
+  - SERVICE_NAME.SERVICE_NAMESPACE.svc
+  - SERVICE_NAME.SERVICE_NAMESPACE.svc.cluster.local
   issuerRef:
     kind: Issuer
     name: selfsigned-issuer

config/certmanager/kustomizeconfig.yaml

@@ -1,16 +1,8 @@
-# This configuration is for teaching kustomize how to update name ref and var substitution 
+# This configuration is for teaching kustomize how to update name ref substitution
 nameReference:
 - kind: Issuer
   group: cert-manager.io
   fieldSpecs:
   - kind: Certificate
     group: cert-manager.io
     path: spec/issuerRef/name
-
-varReference:
-- kind: Certificate
-  group: cert-manager.io
-  path: spec/commonName
-- kind: Certificate
-  group: cert-manager.io
-  path: spec/dnsNames

config/crd/bases/kepler.system.sustainable.computing.io_keplerinternals.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.1
+    controller-gen.kubebuilder.io/version: v0.13.0
   name: keplerinternals.kepler.system.sustainable.computing.io
 spec:
   group: kepler.system.sustainable.computing.io

config/crd/bases/kepler.system.sustainable.computing.io_keplers.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.12.1
+    controller-gen.kubebuilder.io/version: v0.13.0
   name: keplers.kepler.system.sustainable.computing.io
 spec:
   group: kepler.system.sustainable.computing.io