Merge pull request #2800 from everettraven/feat/k8s-labels

✨ (kustomize/v1 and kustomize/v2-alpha): add labels on the manifests following the k8s recommendations

Author: k8s-ci-robot

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/certmanager/certificate.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &Certificate{}
 // Certificate scaffolds a file that defines the issuer CR and the certificate CR
 type Certificate struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -49,6 +50,13 @@ const certManagerTemplate = `# The following manifests contain a self-signed iss
 apiVersion: cert-manager.io/v1
 kind: Issuer
 metadata:
+  labels:
+    app.kuberentes.io/name: issuer
+    app.kubernetes.io/instance: selfsigned-issuer
+    app.kubernetes.io/component: certificate
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: selfsigned-issuer
   namespace: system
 spec:
@@ -57,6 +65,13 @@ spec:
 apiVersion: cert-manager.io/v1
 kind: Certificate
 metadata:
+  labels:
+    app.kubernetes.io/name: certificate
+    app.kubernetes.io/instance: serving-cert
+    app.kubernetes.io/component: certificate
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: serving-cert  # this name should match the one appeared in kustomizeconfig.yaml
   namespace: system
 spec:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/kdefault/enablecainection_patch.go

@@ -28,6 +28,7 @@ var _ machinery.Template = &WebhookCAInjectionPatch{}
 type WebhookCAInjectionPatch struct {
 	machinery.TemplateMixin
 	machinery.ResourceMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -49,13 +50,27 @@ const injectCAPatchTemplate = `# This patch add annotation to admission webhook
 apiVersion: admissionregistration.k8s.io/{{ .Resource.Webhooks.WebhookVersion }}
 kind: MutatingWebhookConfiguration
 metadata:
+  labels:
+    app.kubernetes.io/name: mutatingwebhookconfiguration
+    app.kubernetes.io/instance: mutating-webhook-configuration
+    app.kubernetes.io/component: webhook
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: mutating-webhook-configuration
   annotations:
     cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)
 ---
 apiVersion: admissionregistration.k8s.io/{{ .Resource.Webhooks.WebhookVersion }}
 kind: ValidatingWebhookConfiguration
 metadata:
+  labels:
+    app.kubernetes.io/name: validatingwebhookconfiguration
+    app.kubernetes.io/instance: validating-webhook-configuration
+    app.kubernetes.io/component: webhook
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: validating-webhook-configuration
   annotations:
     cert-manager.io/inject-ca-from: $(CERTIFICATE_NAMESPACE)/$(CERTIFICATE_NAME)

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/config.go

@@ -28,6 +28,7 @@ var _ machinery.Template = &Config{}
 type Config struct {
 	machinery.TemplateMixin
 	machinery.ComponentConfigMixin
+	machinery.ProjectNameMixin
 
 	// Image is controller manager image name
 	Image string
@@ -49,6 +50,12 @@ kind: Namespace
 metadata:
   labels:
     control-plane: controller-manager
+    app.kubernetes.io/name: namespace
+    app.kubernetes.io/instance: system
+    app.kubernetes.io/component: manager
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: system
 ---
 apiVersion: apps/v1
@@ -58,6 +65,12 @@ metadata:
   namespace: system
   labels:
     control-plane: controller-manager
+    app.kubernetes.io/name: deployment
+    app.kubernetes.io/instance: controller-manager
+    app.kubernetes.io/component: manager
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
 spec:
   selector:
     matchLabels:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/manager/controller_manager_config.go

@@ -29,6 +29,7 @@ type ControllerManagerConfig struct {
 	machinery.TemplateMixin
 	machinery.DomainMixin
 	machinery.RepositoryMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements input.Template
@@ -46,6 +47,14 @@ func (f *ControllerManagerConfig) SetTemplateDefaults() error {
 
 const controllerManagerConfigTemplate = `apiVersion: controller-runtime.sigs.k8s.io/v1alpha1
 kind: ControllerManagerConfig
+metadata:
+  labels:
+    app.kubernetes.io/name: controllermanagerconfig
+    app.kubernetes.io/instance: controller-manager-configuration
+    app.kubernetes.io/component: manager
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
 health:
   healthProbeBindAddress: :8081
 metrics:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/prometheus/monitor.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &Monitor{}
 // Monitor scaffolds a file that defines the prometheus service monitor
 type Monitor struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -47,6 +48,12 @@ kind: ServiceMonitor
 metadata:
   labels:
     control-plane: controller-manager
+    app.kubernetes.io/name: servicemonitor
+    app.kubernetes.io/instance: controller-manager-metrics-monitor
+    app.kubernetes.io/component: metrics
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: controller-manager-metrics-monitor
   namespace: system
 spec:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/rbac/auth_proxy_client_role.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &AuthProxyClientRole{}
 // AuthProxyClientRole scaffolds a file that defines the role for the metrics reader
 type AuthProxyClientRole struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -43,6 +44,13 @@ func (f *AuthProxyClientRole) SetTemplateDefaults() error {
 const clientClusterRoleTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
+  labels:
+    app.kubernetes.io/name: clusterrole
+    app.kubernetes.io/instance: metrics-reader
+    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: metrics-reader
 rules:
 - nonResourceURLs:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/rbac/auth_proxy_role.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &AuthProxyRole{}
 // AuthProxyRole scaffolds a file that defines the role for the auth proxy
 type AuthProxyRole struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -43,6 +44,13 @@ func (f *AuthProxyRole) SetTemplateDefaults() error {
 const proxyRoleTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
+  labels:
+    app.kubernetes.io/name: clusterrole
+    app.kubernetes.io/instance: proxy-role
+    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: proxy-role
 rules:
 - apiGroups:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/rbac/auth_proxy_role_binding.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &AuthProxyRoleBinding{}
 // AuthProxyRoleBinding scaffolds a file that defines the role binding for the auth proxy
 type AuthProxyRoleBinding struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -43,6 +44,13 @@ func (f *AuthProxyRoleBinding) SetTemplateDefaults() error {
 const proxyRoleBindinggTemplate = `apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
+  labels:
+    app.kubernetes.io/name: clusterrolebinding
+    app.kubernetes.io/instance: proxy-rolebinding
+    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: proxy-rolebinding
 roleRef:
   apiGroup: rbac.authorization.k8s.io

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/rbac/auth_proxy_service.go

@@ -27,6 +27,7 @@ var _ machinery.Template = &AuthProxyService{}
 // AuthProxyService scaffolds a file that defines the service for the auth proxy
 type AuthProxyService struct {
 	machinery.TemplateMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -45,6 +46,12 @@ kind: Service
 metadata:
   labels:
     control-plane: controller-manager
+    app.kubernetes.io/name: service
+    app.kubernetes.io/instance: controller-manager-metrics-service
+    app.kubernetes.io/component: kube-rbac-proxy
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: controller-manager-metrics-service
   namespace: system
 spec:

pkg/plugins/common/kustomize/v1/scaffolds/internal/templates/config/rbac/crd_editor_role.go

@@ -29,6 +29,7 @@ type CRDEditorRole struct {
 	machinery.TemplateMixin
 	machinery.MultiGroupMixin
 	machinery.ResourceMixin
+	machinery.ProjectNameMixin
 }
 
 // SetTemplateDefaults implements file.Template
@@ -52,6 +53,13 @@ const crdRoleEditorTemplate = `# permissions for end users to edit {{ .Resource.
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
+  labels:
+    app.kubernetes.io/name: clusterrole
+    app.kubernetes.io/instance: {{ lower .Resource.Kind }}-editor-role
+    app.kubernetes.io/component: rbac
+    app.kubernetes.io/created-by: {{ .ProjectName }}
+    app.kubernetes.io/part-of: {{ .ProjectName }}
+    app.kubernetes.io/managed-by: kustomize
   name: {{ lower .Resource.Kind }}-editor-role
 rules:
 - apiGroups: