Both Kubernetes and Docker Swarm have Ingress, and it might sound compelling to compare them and explore the differences. While that, at first glance, might seem like the right thing to do, there is a problem. Ingress works quite differently across the two.
Swarm Ingress networking is much more similar to Kubernetes services. Both can, and should, be used to expose ports to clients both inside and outside a cluster. If we compare the two products, we'll discover that Kubernetes services are similar to a combination of Docker Swarm's Overlay and Ingress networking. The Overlay is used to provide communication between applications inside a cluster, and Swarm's Ingress is a flavor of Overlay network that publishes ports to the outside world. The truth is that Swarm does not have an equivalent to Kubernetes Ingress...