plugin/src/main/java/io/fabric8/maven/plugin/mojo/build/ApplyMojo.java
private boolean serviceHasIngressRule(List<Ingress> ingresses, Service service) {
        String serviceName = KubernetesHelper.getName(service);
        for (Ingress ingress : ingresses) {
            IngressSpec spec = ingress.getSpec();
            if (spec == null) {
                break;
            }
            List<IngressRule> rules = spec.getRules();
            if (rules == null) {
                break;
            }
            for (IngressRule rule : rules) {
                HTTPIngressRuleValue http = rule.getHttp();
                if (http == null) {
                    break;
                }
                List<HTTPIngressPath> paths = http.getPaths();
                if (paths == null) {
                    break;
                }
                for (HTTPIngressPath path : paths) {
                    IngressBackend backend = path.getBackend();
                    if (backend == null) {
                        break;
                    }
                    if (Objects.equals(serviceName, backend.getServiceName())) {
                        return true;
                    }
                }
            }
        }
        return false;
    }
private boolean serviceHasIngressRule(List<Ingress> ingresses, Service service) {
        String serviceName = KubernetesHelper.getName(service);
        for (Ingress ingress : ingresses) {
            IngressSpec spec = ingress.getSpec();
            if (spec == null) {
                break;
            }
            List<IngressRule> rules = spec.getRules();
            if (rules == null) {
                break;
            }
            for (IngressRule rule : rules) {
                HTTPIngressRuleValue http = rule.getHttp();
                if (http == null) {
                    break;
                }
                List<HTTPIngressPath> paths = http.getPaths();
                if (paths == null) {
                    break;
                }
                for (HTTPIngressPath path : paths) {
                    IngressBackend backend = path.getBackend();
                    if (backend == null) {
                        break;
                    }
                    if (Objects.equals(serviceName, backend.getServiceName())) {
                        return true;
                    }
                }
            }
        }
        return false;
    }
Returns true if there is an existing ingress rule for the given service