feat: Integration scale sub-resource works with HPA
diff --git a/deploy/crd-integration.yaml b/deploy/crd-integration.yaml
index 18d0e57..0366bde 100644
--- a/deploy/crd-integration.yaml
+++ b/deploy/crd-integration.yaml
@@ -46,6 +46,7 @@
   scope: Namespaced
   subresources:
     scale:
+      labelSelectorPath: .status.selector
       specReplicasPath: .spec.replicas
       statusReplicasPath: .status.replicas
     status: {}
@@ -323,6 +324,8 @@
               type: string
             runtimeVersion:
               type: string
+            selector:
+              type: string
             version:
               type: string
           type: object
diff --git a/deploy/olm-catalog/camel-k-dev/1.1.0-snapshot/integrations.camel.apache.org.crd.yaml b/deploy/olm-catalog/camel-k-dev/1.1.0-snapshot/integrations.camel.apache.org.crd.yaml
index 18d0e57..0366bde 100644
--- a/deploy/olm-catalog/camel-k-dev/1.1.0-snapshot/integrations.camel.apache.org.crd.yaml
+++ b/deploy/olm-catalog/camel-k-dev/1.1.0-snapshot/integrations.camel.apache.org.crd.yaml
@@ -46,6 +46,7 @@
   scope: Namespaced
   subresources:
     scale:
+      labelSelectorPath: .status.selector
       specReplicasPath: .spec.replicas
       statusReplicasPath: .status.replicas
     status: {}
@@ -323,6 +324,8 @@
               type: string
             runtimeVersion:
               type: string
+            selector:
+              type: string
             version:
               type: string
           type: object
diff --git a/deploy/resources.go b/deploy/resources.go
index 8909f03..573461f 100644
--- a/deploy/resources.go
+++ b/deploy/resources.go
@@ -140,9 +140,9 @@
 		"/crd-integration.yaml": &vfsgen۰CompressedFileInfo{
 			name:             "crd-integration.yaml",
 			modTime:          time.Time{},
-			uncompressedSize: 11558,
+			uncompressedSize: 11649,
 
-			compressedContent: 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 		},
 		"/operator-deployment.yaml": &vfsgen۰CompressedFileInfo{
 			name:             "operator-deployment.yaml",
diff --git a/helm/camel-k/crds/crd-integration.yaml b/helm/camel-k/crds/crd-integration.yaml
index 18d0e57..0366bde 100644
--- a/helm/camel-k/crds/crd-integration.yaml
+++ b/helm/camel-k/crds/crd-integration.yaml
@@ -46,6 +46,7 @@
   scope: Namespaced
   subresources:
     scale:
+      labelSelectorPath: .status.selector
       specReplicasPath: .spec.replicas
       statusReplicasPath: .status.replicas
     status: {}
@@ -323,6 +324,8 @@
               type: string
             runtimeVersion:
               type: string
+            selector:
+              type: string
             version:
               type: string
           type: object
diff --git a/pkg/apis/camel/v1/integration_types.go b/pkg/apis/camel/v1/integration_types.go
index d32acba..9596eb2 100644
--- a/pkg/apis/camel/v1/integration_types.go
+++ b/pkg/apis/camel/v1/integration_types.go
@@ -57,6 +57,7 @@
 	Conditions         []IntegrationCondition `json:"conditions,omitempty"`
 	Version            string                 `json:"version,omitempty"`
 	Replicas           *int32                 `json:"replicas,omitempty"`
+	Selector           string                 `json:"selector,omitempty"`
 	Capabilities       []string               `json:"capabilities,omitempty"`
 }
 
@@ -65,7 +66,7 @@
 // +genclient
 // +kubebuilder:resource:path=integrations,scope=Namespaced,shortName=it
 // +kubebuilder:subresource:status
-// +kubebuilder:subresource:scale:specpath=.spec.replicas,statuspath=.status.replicas
+// +kubebuilder:subresource:scale:specpath=.spec.replicas,statuspath=.status.replicas,selectorpath=.status.selector
 // +kubebuilder:printcolumn:name="Phase",type=string,JSONPath=`.status.phase`,description="The integration phase"
 // +kubebuilder:printcolumn:name="Kit",type=string,JSONPath=`.status.kit`,description="The integration kit"
 // +kubebuilder:printcolumn:name="Replicas",type=integer,JSONPath=`.status.replicas`,description="The number of pods"
diff --git a/pkg/controller/integration/monitor.go b/pkg/controller/integration/monitor.go
index 4cea23e..d350614 100644
--- a/pkg/controller/integration/monitor.go
+++ b/pkg/controller/integration/monitor.go
@@ -58,7 +58,7 @@
 
 		integration.Status.Digest = hash
 		integration.Status.Phase = v1.IntegrationPhaseInitialization
-		if integration.Spec.Profile != v1.TraitProfile("") {
+		if integration.Spec.Profile != "" {
 			integration.Status.Profile = integration.Spec.Profile
 		}
 		integration.Status.Version = defaults.Version
@@ -72,6 +72,10 @@
 		return nil, err
 	}
 
+	// Enforce the scale sub-resource label selector
+	// It is used by the HPA that queries the scale sub-resource endpoint to list the pods owned by the integration
+	integration.Status.Selector = "camel.apache.org/integration=" + integration.Name
+
 	// Check replicas
 	replicaSets := &appsv1.ReplicaSetList{}
 	err = action.client.List(ctx, replicaSets,