How can I determine which ingress controllers are configured on Kubernetes

Question

Is there a command I can run or is there some way to identify whether a cluster has one or more ingress controllers configured?

I'm not asking about the actual ingresses themselves (which I know can be found with kubectl get ingress --all-namespaces).

Answer 1

There is no fancy way to achieve what you need. These two commands can help you and it really depends on what you need to choose between them.

$ kubectl get pods --all-namespaces -o=jsonpath='{range .items[*]}{"\n"}{.metadata.name}{":\t"}{range .metadata}{.labels}{", "}{end}{end}' | grep ingress | grep controller

$ kubectl get pods --show-labels --all-namespaces  | grep ingress | grep controller

Both commands are similar but with different outputs.

These commands are based on this documation page.