Adding Kubernetes recommended labels to resources

deploy/00-namespace.yaml

@@ -1,4 +1,8 @@
 apiVersion: v1
 kind: Namespace
 metadata:
+  labels:
+    app.kubernetes.io/name: keda
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda

deploy/01-service_account.yaml

@@ -1,5 +1,9 @@
 apiVersion: v1
 kind: ServiceAccount
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-operator
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-operator
   namespace: keda

deploy/10-cluster_role.yaml

@@ -1,6 +1,10 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-operator
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   creationTimestamp: null
   name: keda-operator
 rules:

deploy/11-role_binding.yaml

@@ -1,6 +1,10 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-operator
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-operator
 roleRef:
   apiGroup: rbac.authorization.k8s.io

deploy/12-operator.yaml

@@ -3,6 +3,10 @@ kind: Deployment
 metadata:
   labels:
     app: keda-operator
+    app.kubernetes.io/name: keda-operator
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/component: operator
+    app.kubernetes.io/part-of: keda-operator
   name: keda-operator
   namespace: keda
 spec:

deploy/20-metrics-cluster_role.yaml

@@ -1,6 +1,10 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRole
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-external-metrics-reader
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   creationTimestamp: null
   name: keda-external-metrics-reader
 rules:

deploy/21-metrics-role_binding.yaml

@@ -1,6 +1,10 @@
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-system-auth-delegator
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda:system:auth-delegator
 roleRef:
   apiGroup: rbac.authorization.k8s.io
@@ -14,6 +18,10 @@ subjects:
 apiVersion: rbac.authorization.k8s.io/v1
 kind: RoleBinding
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-auth-reader
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-auth-reader
   namespace: kube-system
 roleRef:
@@ -28,6 +36,10 @@ subjects:
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-hpa-controller-external-metrics
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-hpa-controller-external-metrics
 roleRef:
   apiGroup: rbac.authorization.k8s.io

deploy/22-metrics-deployment.yaml

@@ -3,6 +3,9 @@ kind: Deployment
 metadata:
   labels:
     app: keda-metrics-apiserver
+    app.kubernetes.io/name: keda-metrics-apiserver
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-metrics-apiserver
   namespace: keda
 spec:

deploy/23-metrics-service.yaml

@@ -2,6 +2,10 @@
 apiVersion: v1
 kind: Service
 metadata:
+  labels:
+    app.kubernetes.io/name: keda-metrics-apiserver
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: keda-metrics-apiserver
   namespace: keda
 spec:

deploy/24-metrics-api_service.yaml

@@ -1,6 +1,10 @@
 apiVersion: apiregistration.k8s.io/v1beta1
 kind: APIService
 metadata:
+  labels:
+    app.kubernetes.io/name: v1beta1.external.metrics.k8s.io
+    app.kubernetes.io/version: "1.0.0"
+    app.kubernetes.io/part-of: keda-operator
   name: v1beta1.external.metrics.k8s.io
 spec:
   service:

pkg/controller/scaledobject/scaledobject_controller.go

@@ -321,6 +321,12 @@ func (r *ReconcileScaledObject) startScaleLoop(logger logr.Logger, scaledObject
 func (r *ReconcileScaledObject) newHPAForScaledObject(logger logr.Logger, scaledObject *kedav1alpha1.ScaledObject) (*autoscalingv2beta1.HorizontalPodAutoscaler, error) {
 	deploymentName := scaledObject.Spec.ScaleTargetRef.DeploymentName
 	scaledObjectMetricSpecs, err := r.getScaledObjectMetricSpecs(logger, scaledObject, deploymentName)
+	labels := map[string]string{
+		"app.kubernetes.io/name": getHpaName(deploymentName),
+		"app.kubernetes.io/version": "1.0.0",
+		"app.kubernetes.io/part-of": deploymentName,
+		"app.kubernetes.io/managed-by": "keda-operator",
+	  }
 
 	if err != nil {
 		return nil, err
@@ -339,6 +345,7 @@ func (r *ReconcileScaledObject) newHPAForScaledObject(logger logr.Logger, scaled
 		ObjectMeta: metav1.ObjectMeta{
 			Name:      getHpaName(deploymentName),
 			Namespace: scaledObject.Namespace,
+			Labels:    labels,
 		},
 		TypeMeta: metav1.TypeMeta{
 			APIVersion: "v2beta1",

pkg/handler/scale_jobs.go

@@ -59,6 +59,10 @@ func (h *ScaleHandler) createJobs(scaledObject *kedav1alpha1.ScaledObject, scale
 				GenerateName: scaledObject.GetName() + "-",
 				Namespace:    scaledObject.GetNamespace(),
 				Labels: map[string]string{
+					"app.kubernetes.io/name": scaledObject.GetName(),
+					"app.kubernetes.io/version": "1.0.0",
+					"app.kubernetes.io/part-of": scaledObject.GetName(),
+					"app.kubernetes.io/managed-by": "keda-operator",
 					"scaledobject": scaledObject.GetName(),
 				},
 			},