How to find interdependencies between pods in a Kubernetes cluster? Two Pods run in a Kubernetes cluster. One is a simple Wordpress application and the other a Mysql database. The Wordpress Pod communicates with the Mysql database. 

The aim is to find dependencies between pods. Is there any kubectl command or any tool like prometheus that is able to find interdependence between Pods?
Have a look to solutions implementing a service mesh.

For example ISTIO, Consul, Ambasador + Envoy...