fix(kubernetes): detect metrics API for kubernetes endspoints EE-4865 (#8352)

api/http/handler/endpoints/endpoint_inspect.go

@@ -7,6 +7,7 @@ import (
 	"github.com/portainer/libhttp/request"
 	"github.com/portainer/libhttp/response"
 	portainer "github.com/portainer/portainer/api"
+	"github.com/portainer/portainer/api/internal/endpointutils"
 )
 
 // @id EndpointInspect
@@ -51,6 +52,15 @@ func (handler *Handler) endpointInspect(w http.ResponseWriter, r *http.Request)
 		}
 	}
 
+	isServerMetricsDetected := endpoint.Kubernetes.Flags.IsServerMetricsDetected
+	if !isServerMetricsDetected && handler.K8sClientFactory != nil {
+		endpointutils.InitialMetricsDetection(
+			endpoint,
+			handler.DataStore.Endpoint(),
+			handler.K8sClientFactory,
+		)
+	}
+
 	return response.JSON(w, endpoint)
 }