Currently, Jenkins operator is not allowed to specify the name of port in the service which will be created by Jenkins Operator. I understood from this page.

So I'd like you to enable to specify the name of port in the service or create the service with named port.

  ports:
  -  name: http
     port: 8080
     protocol: TCP
     targetPort: 8080

The reason is that I'd like to use this feature of Istio. Thank you.