An Ingress is created during the installation process. To access your Node-RED use http://nodered.YOURCLUSTERID.k8s.civo.com
If you want to change the hostname or modify the ingress, edit it with
kubectl edit ingress nodered
There is no user authentication by default, please consider, at least, using Basic Authentication to protect your Node-RED instance.
You can find documentation, tutorials, recipes and more in https://nodered.org/docs/
Don't Repeat Yourself, visit https://flows.nodered.org/ to find nodes and flows developed by other people or to share yours.