To expose your services, you use a Kubernetes resource called an Ingress (rules and config for how traffic gets forwarded to your service).

However, defining the Ingress resource doesn’t actually do anything. You’ll need an Ingress Controller to actually create the resources.

More reading:

https://kubernetes.io/docs/concepts/services-networking/ingress/#ingress-controllers

https://aws.amazon.com/blogs/apn/coreos-and-ticketmaster-collaborate-to-bring-aws-application-load-balancer-support-to-kubernetes/