public Optional<Output<String>> appProtocol() {
        return Optional.ofNullable(this.appProtocol);
    }
@return The application protocol for this port. This field follows standard Kubernetes label syntax. Un-prefixed names are reserved for IANA standard service names (as per RFC-6335 and http://www.iana.org/assignments/service-names). Non-standard protocols should use prefixed names. Default is empty string.
sdk/java/src/main/java/com/pulumi/kubernetes/discovery/v1beta1/inputs/EndpointPortPatchArgs.java