fix: add common labels to created resources

controllers/model/dashboard_resources.go

@@ -15,6 +15,7 @@ func GetPluginsConfigMap(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v1
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-plugins", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, config, scheme) //nolint:errcheck

controllers/model/grafana_resources.go

@@ -13,11 +13,16 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 )
 
+var CommonLabels = map[string]string{
+	"app.kubernetes.io/managed-by": "grafana-operator",
+}
+
 func GetGrafanaConfigMap(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v1.ConfigMap {
 	config := &v1.ConfigMap{
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-ini", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, config, scheme) //nolint:errcheck
@@ -29,6 +34,7 @@ func GetGrafanaAdminSecret(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-admin-credentials", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 
@@ -43,6 +49,7 @@ func GetGrafanaDataPVC(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v1.P
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-pvc", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	// using OwnerReference specifically here to allow admins to change storage variables without the operator complaining
@@ -55,6 +62,7 @@ func GetGrafanaServiceAccount(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-sa", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, sa, scheme) //nolint:errcheck
@@ -66,6 +74,7 @@ func GetGrafanaService(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v1.S
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-service", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, service, scheme) //nolint:errcheck
@@ -77,6 +86,7 @@ func GetGrafanaIngress(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v12.
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-ingress", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, ingress, scheme) //nolint:errcheck
@@ -88,6 +98,7 @@ func GetGrafanaRoute(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *routev
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-route", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	controllerutil.SetControllerReference(cr, route, scheme) //nolint:errcheck
@@ -99,6 +110,7 @@ func GetGrafanaDeployment(cr *grafanav1beta1.Grafana, scheme *runtime.Scheme) *v
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      fmt.Sprintf("%s-deployment", cr.Name),
 			Namespace: cr.Namespace,
+			Labels:    CommonLabels,
 		},
 	}
 	if scheme != nil {

controllers/model/utils.go

@@ -3,6 +3,8 @@ package model
 import (
 	"crypto/rand"
 	"encoding/base64"
+
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
 func generateRandomBytes(n int) []byte {
@@ -33,3 +35,16 @@ func MergeAnnotations(requested map[string]string, existing map[string]string) m
 func BoolPtr(b bool) *bool { return &b }
 
 func IntPtr(b int64) *int64 { return &b }
+
+func SetCommonLabels(obj metav1.ObjectMetaAccessor) {
+	meta := obj.GetObjectMeta()
+	labels := meta.GetLabels()
+	if labels == nil {
+		labels = CommonLabels
+	} else {
+		for k, v := range CommonLabels {
+			labels[k] = v
+		}
+	}
+	meta.SetLabels(labels)
+}

controllers/reconcilers/grafana/admin_secret_reconciler.go

@@ -27,6 +27,7 @@ func NewAdminSecretReconciler(client client.Client) reconcilers.OperatorGrafanaR
 func (r *AdminSecretReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafana, status *v1beta1.GrafanaStatus, vars *v1beta1.OperatorReconcileVars, scheme *runtime.Scheme) (v1beta1.OperatorStageStatus, error) {
 	secret := model.GetGrafanaAdminSecret(cr, scheme)
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, secret, func() error {
+		model.SetCommonLabels(secret)
 		secret.Data = getData(cr, secret)
 		return nil
 	})

controllers/reconcilers/grafana/config_reconciler.go

@@ -31,6 +31,7 @@ func (r *ConfigReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafana, s
 
 	configMap := model.GetGrafanaConfigMap(cr, scheme)
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, configMap, func() error {
+		model.SetCommonLabels(configMap)
 		if configMap.Data == nil {
 			configMap.Data = make(map[string]string)
 		}

controllers/reconcilers/grafana/deployment_reconciler.go

@@ -52,6 +52,7 @@ func (r *DeploymentReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafan
 
 	deployment := model.GetGrafanaDeployment(cr, scheme)
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, deployment, func() error {
+		model.SetCommonLabels(deployment)
 		deployment.Spec = getDeploymentSpec(cr, deployment.Name, scheme, vars, openshiftPlatform)
 		err := v1beta1.Merge(deployment, cr.Spec.Deployment)
 		return err

controllers/reconcilers/grafana/grafana_service_reconciler.go

@@ -33,6 +33,7 @@ func (r *ServiceReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafana,
 	service := model.GetGrafanaService(cr, scheme)
 
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, service, func() error {
+		model.SetCommonLabels(service)
 		service.Spec = v1.ServiceSpec{
 			Ports: getServicePorts(cr),
 			Selector: map[string]string{

controllers/reconcilers/grafana/ingress_reconciler.go

@@ -52,6 +52,7 @@ func (r *IngressReconciler) reconcileIngress(ctx context.Context, cr *v1beta1.Gr
 	ingress := model.GetGrafanaIngress(cr, scheme)
 
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, ingress, func() error {
+		model.SetCommonLabels(ingress)
 		ingress.Spec = getIngressSpec(cr, scheme)
 		return v1beta1.Merge(ingress, cr.Spec.Ingress)
 	})
@@ -85,6 +86,7 @@ func (r *IngressReconciler) reconcileRoute(ctx context.Context, cr *v1beta1.Graf
 	route := model.GetGrafanaRoute(cr, scheme)
 
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, route, func() error {
+		model.SetCommonLabels(route)
 		route.Spec = getRouteSpec(cr, scheme)
 		err := v1beta1.Merge(route, cr.Spec.Route)
 		return err

controllers/reconcilers/grafana/plugins_reconciler.go

@@ -7,9 +7,9 @@ import (
 	"github.com/grafana/grafana-operator/v5/api/v1beta1"
 	"github.com/grafana/grafana-operator/v5/controllers/model"
 	"github.com/grafana/grafana-operator/v5/controllers/reconcilers"
-	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime"
 	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
 	"sigs.k8s.io/controller-runtime/pkg/log"
 )
 
@@ -26,27 +26,14 @@ func NewPluginsReconciler(client client.Client) reconcilers.OperatorGrafanaRecon
 func (r *PluginsReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafana, status *v1beta1.GrafanaStatus, vars *v1beta1.OperatorReconcileVars, scheme *runtime.Scheme) (v1beta1.OperatorStageStatus, error) {
 	logger := log.FromContext(ctx).WithName("PluginsReconciler")
 
-	plugins := model.GetPluginsConfigMap(cr, scheme)
-	selector := client.ObjectKey{
-		Namespace: plugins.Namespace,
-		Name:      plugins.Name,
-	}
-
-	err := r.client.Get(ctx, selector, plugins)
+	vars.Plugins = ""
 
-	// plugins config map not found, we need to create it
-	if err != nil && errors.IsNotFound(err) {
-		err = r.client.Create(ctx, plugins)
-		if err != nil {
-			logger.Error(err, "error creating plugins config map", "name", plugins.Name, "namespace", plugins.Namespace)
-			return v1beta1.OperatorStageResultFailed, err
-		}
-
-		// no plugins yet, assign plugins to empty string
-		vars.Plugins = ""
-
-		return v1beta1.OperatorStageResultSuccess, nil
-	} else if err != nil {
+	plugins := model.GetPluginsConfigMap(cr, scheme)
+	_, err := controllerutil.CreateOrUpdate(ctx, r.client, plugins, func() error {
+		model.SetCommonLabels(plugins)
+		return nil
+	})
+	if err != nil {
 		logger.Error(err, "error getting plugins config map", "name", plugins.Name, "namespace", plugins.Namespace)
 		return v1beta1.OperatorStageResultFailed, err
 	}

controllers/reconcilers/grafana/pvc_reconciler.go

@@ -32,6 +32,7 @@ func (r *PvcReconciler) Reconcile(ctx context.Context, cr *v1beta1.Grafana, stat
 
 	pvc := model.GetGrafanaDataPVC(cr, scheme)
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, pvc, func() error {
+		model.SetCommonLabels(pvc)
 		return v1beta1.Merge(pvc, cr.Spec.PersistentVolumeClaim)
 	})
 	if err != nil {

controllers/reconcilers/grafana/service_account_reconciler.go

@@ -25,6 +25,7 @@ func (r *ServiceAccountReconciler) Reconcile(ctx context.Context, cr *v1beta1.Gr
 	sa := model.GetGrafanaServiceAccount(cr, scheme)
 
 	_, err := controllerutil.CreateOrUpdate(ctx, r.client, sa, func() error {
+		model.SetCommonLabels(sa)
 		return v1beta1.Merge(sa, cr.Spec.ServiceAccount)
 	})
 	if err != nil {