public Optional<Output<Integer>> port() {
        return Optional.ofNullable(this.port);
    }
@return port is an optional service port at which the webhook will be contacted. `port` should be a valid port number (1-65535, inclusive). Defaults to 443 for backward compatibility.
sdk/java/src/main/java/com/pulumi/kubernetes/apiextensions/v1/inputs/ServiceReferencePatchArgs.java